December 2016 Highland Technology announces the latest release in its line of standalone test and measurement modules, the P620 Resistance Simulator. The P620 includes six independent, isolated channels that can simulate platinum RTDs and resistances ranging from 5 ohms to 5Mohms. It uses entirely solid-state simulation to eliminate transient errors associated with relay switching and provides for monotonic resistance changes. Any channel may be rerouted, under software control, to the front-panel calibration-check connector, allowing the board to be tested for calibration by a precision DVM without disturbing the connections to the equipment under test. The built-in self test provides an onboard ohmmeter, allowing loopback checking and full automatic self-test. Both USB and Ethernet interfaces are provided.
July 2016 The D200 is the latest in Highland Technology's line of high-performance compact precision laser drivers. A DC-coupled trigger signal produces fast, 2 nanosecond transitions. Up to 4 amps of regulated drive current supports lasers with forward voltages up to 9 volts. The built-in edge-triggered pulse generator provides up to 1µs pulse widths. A pulse-follower mode is also provided, accommodating externally-defined trigger widths up to 100% duty continuous-wave (CW). Power, pulse width, drive current, and differential triggering functions are accessible through a ribbon cable header for embedded OEM applications. A low-inductance laser drive interface permits direct laser connection or custom interposer / flex-cable attachment.
June 2016 The P470 thermocouple simulator features 8 isolated channels, each capable of simulating J K E T R S B and N thermocouple types, or outputing voltage in a range of ±100 millivolts with 20-bits of resolution. It can also simulate an open thermocouple. Two precision external RTD signal conditioners plus one internal RTD are provided for reference junction temperature sensing. Its built-in self-test feature allows the user to quickly verify the function of the module. Additionally, any channel may be rerouted to the front-panel cal-check connector, making remote calibration check easy. Optional mounting accessories allow the unit to be easily installed on a DIN rail or in a server rack.
January 2016 The model P350 "Wayback Machine" is a compact Ethernet-based waveform playback unit designed specifically for aerospace simulation testing. It provides eight analog outputs that can be used independently or synchronously. In Playback mode, any P350 channel can store and play multi-gigabyte user waveform files, with flexible playback rates, summing, filtering, scaling/offset, and phase/timeshift provisions. Any channel can also operate in Wavetable mode, playing repetitive standard or arbitrary waveforms. Two analog inputs and two random noise generators are available for modulation or summing. Programming features allow accurate, glitch-free, low-jitter simulation of complex waveforms as might be generated by sensors on jet engines or other complex machines.
August 2015 Highland Technology announces the latest release in its line of VME test and measurement modules, the V410 RTD/resistance Input Module. The V410 features 16 independent channels configurable for 2-wire, 3-wire, and 4-wire resistance measurement and capable of measuring from 1 ohm to 3 megohms. This makes the V410 suitable for 100-ohm and 1000-ohm RTDs, thermistors, and other resistive sensors. It can also read cryogenic diodes. Look-up tables are included for 100 and 1000 ohm, 385 and 392 platinum RTDs. The built-in self-test reports both internal errors and wiring faults. Any channel of the V410 may be switched to a front-panel D9 test connector for in-crate calibration checks without disturbing field wiring.
May 2015 The D100 is a compact, DC-coupled constant-current laser diode driver, ideal for powering pulsed laser bar arrays. A precision onboard regulated current source is adjustable from 0 to 250 Amps and provides 30V compliance for driving up to 12 bar, 2kW stacks. The robust SOAR protected MOSFET output stage provides fast 10 µs rising and falling edges for clean E/O transitions through lasing threshold. The D100 includes an onboard 50 to 1000 µs width generator for translating single-edge trigger sources to adjustable pulse-width drive pulses. A pulse-follower mode with settable maximum pulse width limit is included for accommodating externally defined pulses.
March 2015 Highland Technology has introduced a new VME product, the model V280 Isolated Digital Input Module. The V280 features 48 individually isolated digital inputs, with programmable debounce times and extended overload protection. It will accept DC or AC inputs and includes glitch-catch capability. The V280 includes built-in self-test which transparently tests virtually the entire signal path, including the input sides of all opto-isolators. Versions are available for 24 volt and 3.3/5 volt logic level inputs.
April 2013 Highland Technology announces the release of the V120 VME PCI Express Crate Controller for aerospace, industrial, and laboratory application. The V120 is a VME bus master crate controller, usable as a crate slot 0 arbiter or as a secondary controller. Each PCI Express cable driver board, in a PC backplane, can drive one or two V120s over standard, flexible PCI Express cable assemblies up to 7 meters long. Designed for long-term availability, the V120 contains no proprietary VME chips. Clean, simple architecture means no jumpers and no setup needed for basic VME I/O. Ethernet and USB ports are included. Status LEDs and scope monitors expose bus operation and timing. Bus cycle analysis, power supply, temperature, and air flow monitoring are standard.
January 2013 The T165 Laser Pulser incorporates an edge triggered pulse generator with 150 picoseconds nominal rise and fall times into a butterfly or TO-packaged laser. The 2" by 2" design connects directly to standard 0.1" pin-pitch butterfly laser packages, making it ideal for OEM use in laser systems. Laser current, bias, and pulse widths are settable with onboard trimpots or by external analog inputs. Built-in edge-triggered pulse generator is adjustable from 200 picoseconds to 2 nanoseconds. Pulsed laser current adjustable up to 750mA with heat sinking required above 400mA. Power is supplied via standard 5-volt micro-USB power supply or through ribbon cable interface connector. Optional TTL or LVDS/PECL/CML trigger. Optional spring sockets for non-butterfly laser packages. The T165 is the first in Highland’s expanding line of OEM laser drivers with more to come.
Highland Technology announces the T240 single-channel externally-triggered complementary-output pulse generator
for driving electrical/optical modulators.
The T240 features programmable delay/pulse width in two ranges, from 100 picoseconds FWHM up to 25 nanoseconds, and a programmable trigger threshold. It is controlled via USB, RS232, or trimpots, with optional SPI, and is powered by USB or standard 5-volt micro-USB power supply. Designed for driving E/O modulators, the T240 is also ideal for driving seed lasers in pumped fiber systems, RF applications including fast-pulse modulation, phase shifting, and harmonic generation. Other applications include time-domain device characterization and modeling, semiconductor test, and system cable/timing trims.
Highland Technology announces the release of its latest VME module for industrial and aerospace application: The
V545 24-channel VME synchro/LVDT simulation/acquisition module.
The V545 is a generalized- DSP-based sinewave processor intended for both simulation and acquisition of LVDTs, RVDTs, synchros, and resolvers. 24 generalized, isolated channels are provided. Each channel can be a signal source or a measurement input. Users can program any desired relationship between input and output channels, allowing simulation and measurement of a wide range of inductive transducers, using internal or external excitation.
Highland Technology announces the release of its latest VME module for industrial and aerospace application: the
V230 64-channel VME analog input module. The V230 provides high channel-count data acquisition for
dense monitoring applications. Data is presented in real-time as a simple array of 64 values with no handshakes, interrupts, or driver calls
required. The 64 channels are individually programmable for both input range and filtering.
Connector options include either two 68-pin female SCSI connectors or two 96-pin latching male DIN 41612 connectors, which makes the unit a drop in replacement for the VMIC 3122.
July 2011 Highland Technology has released its latest industrial/aerospace VME module, the model V210 relay board. The V210 features 64 SPDT electromechanical power relays under VME register control. Features include relay state readback, VME activity and error LEDs, and jumper-free configuration. Relays are rated for 2 amps, 240 VAC, 60 watts maximum. The module is switch-selectable to operate in conventional or latching-relay modes, and is a drop-in replacement for all versions of the VMIC VMIVME-2210 relay module.
February 2011 The Highland Technology PH200 is the first product in the 'PH' series of extreme-performance photonic instruments. The PH200 Nanowatt Photoreceiver, designed in collaboration with Phil Hobbs, is a free-space optical/electrical converter that provides near shot noise performance in a rugged, compact package. The unique photon feedback architecture delivers a bandwidth greater than 1 MHz, with an unprecedented combination of linearity, bandwidth, and dynamic range for 10nA to 100µA photodiode signals.
August 2010 Highland Technology introduces the V220, a VME module intended for use in 4-20 mA industrial control loop applications. The V220 features 12 fully isolated channels, each capable of either sourcing or measuring voltage and current, simulating and measuring both controllers and transducers, and simulating open/short faults. It is also ideal for simulating complex industrial processes to control systems under development and certification.
May 2010 Highland Technology has announced the latest in a series of high-precision VME data acquisition modules, the V490 analog signal digitizer. The module features sixteen channels with differential input ranges from ±10 millivolts to ±40 volts, with 16 bit resolution and 500 KHz sampling rate. Each channel includes programmable digital filtering and both realtime and FIFO buffered data. Channel inputs can be switched to a separate test connector for in-system calibration verification without disconnecting field wiring. Built-in-self-test is available.
February 2010 Highland Technology announces two new products, the T750 and the T760 high-voltage pulse drivers. Both feature fast, low-jitter, transformer-isolated pulse outputs which are user adjustable from +5 volts to +100 volts into a 50-ohm load, with rise and fall times typically 2 nanoseconds. The T750 features four channels, each with a logic-level input and an isolated HV pulse output. The T760 has two channels, each with fiberoptic inputs and isolated HV electrical outputs. Both units are packaged in compact extruded aluminum cases and are powered by an external 12-volt plugin supply. Both include test points to assist in setup. The electrical-input T750 is an ideal companion to the Highland T560 four-channel micro delay/pulse generator. The fiberoptic-coupled T760 is suited for use with Highland fiberoptic electrical-to-optical converters for driving lasers and pulse-power devices over long distances or in high noise environments.
July 2009 Highland Technology introduces the Model P730 high-speed, multipurpose digital fanout buffer. Attractively housed in an anodized aluminum enclosure, the P730 is suited to embedded OEM or benchtop use. The P730 features two input banks that are user-routable to two output banks, each consisting of four buffered electrical outputs. Input and output levels are independently adjustable enabling compatibility with CMOS, TTL, LVDS, NECL, PECL, NIM and sine wave systems. Fiber optic inputs are optionally available, expanding electrical signal translation to include optical-to-electrical conversion, galvanic isolation and 1244.16 Mb/s SONET OC-24 compatibility. A fully DC-coupled signal path maintains signal integrity to greater than 1GHz pulse repetition rates.
May 2009 FC-connectorization is added to the list of options for Highland's J-series 1310 nm and 1550 nm optical converters.
April 2009 Highland Technology has released the T564, the latest in its series of mini embedded digital delay generators. Starting with an internal or external trigger, the module produces four output pulses programmable for delay and width, with nanosecond-to-second range and picosecond jitter and resolution. The T564 introduces three unique features to digital delay generation: "Queued Updates" allow time settings to be changed without corrupting ongoing timings; a "Train" function allows multiple pulses to be generated from each trigger; and the "Frames" feature allows complex delay sweeps and pulse scenarios to be pre-loaded and rapidly executed, making the T564 ideal for laser timing, radar simulation, and ultra-high-speed imaging.
January 2009 Highland increases the versatility of its line of optical products with the addition of the J750 wideband amplifier.
December 2008 A new Bessel filter option expands the features of Highland's V450 Analog Input VME Module.
November 2008 Highland Technology receives award from Lawrence Livermore National Laboratory for its technological contribution to the National Ignition Facility. Highland instrumentation at NIF includes the T400 Amplitude Modulator used in the Master Oscillator Room and the V880 Delay Generators for the project's critical timing systems.
October 2008 Highland Technology introduces the Model J740 fast fiber-coupled optical-to-electrical converter. Housed in a rugged compact extruded aluminum enclosure, the J740 performs wideband analog conversion of fast fiber-coupled signals from DC to greater than 1GHz. Three versions are available covering industry standard 850 nm, 1310 nm and 1550 nm wavelengths. Units feature a calibrated conversion gain of 1V/mW (0.5V/mW into 50Ω) and are compatible with single and multi-mode fiber. Optical input signals are accepted through a standard ST or FC fiberoptic connector with electrical output signals conveyed through a gold-plated SMB jack. The J740 is ideal wherever stable, ultra-low jitter o/e conversion is required.
September 2008 Highland Technology releases two new members of its T340 series of embedded complex waveform generators. Smaller than a paperback, the T346 outperforms rackmount instruments costing far more. It features four output channels capable of generating standard and arbitrary waveforms from microHz to 32 MHz, and four additional internal channels usable as modulation and summing sources. Channels can also be pulse/PWM and Gaussian noise sources, and can be summed with or modulate one another in any combination. Modulations include AM, FM, PM, and PWM. The T344 version is a four channel ARB without modulations. The T344 and T346 have evolved from the budget-priced 2 MHz T340 waveform generator, and the parallel V340-series VME modules.
June 2008 Highland Technology introduces the T860, a unique multipurpose combination of a precision analog comparator and a versatile output driver, capable of operating from DC up to 1 GHz. It will accept nearly any single-ended or differential, logic or sinewave input, and drive any standard logic-level output – TTL, CMOS, ECL, PECL, or CML. It has output levels in the range of -4 to +5 volts, with up to 5 volts peak to peak swing. Typical output rise and fall times are below 200 picoseconds. The T860 is usable as a precision discriminator or logic-level converter, and converts any standard RF signal generator into a versatile clock generator or step-recovery diode driver. It may be used as a very fast cable or FET gate driver, outputting up to 100mA. The T860 can also drive diode lasers, E/O modulators, and serve as a versatile ATE pin driver.
September 2007 Highland Technology announced the release of its new T340 Waveform Generator. The T340 is a compact standalone waveform generator with four channels of independent or synchronized sine, sawtooth, triangle, or square/pulse/PWM waveform generation. Test relays allow any output to be diverted to a test connector for in-system calibration verification. Built-In-Self-Test is provided. The T340's four channels are each capable of generating waveforms with from 0-2 MHz outputs with millihertz resolution. Each output has up to 20.48 volts peak-to-peak output with programmable 10:1 attenuation and DC offset. The T340's small form factor easily allows for mounting within systems enclosures, allowing short cable runs and reliable, unattended operation. Easy to use serial commands let the T340 be controlled via RS232 or optional Ethernet connections.
April 2007 Highland Technology announced the release of its new V340 VME Waveform Generator. The V340 is an eight-channel individually programmable sine, sawtooth, triangle and pulse/PWM waveform generator. The V340 is ideal for generating synchronized waveforms, polyphase sinewaves, and for transducer, rotating machinery and encoder simulation. The V340's eight channels are each capable of generating waveforms with from DC to 2 MHz with a resolution of 0.004 Hz. Optional software-enabled 1:1 or 5:1 transformers allow isolated outputs of up to 100V peak-to-peak. The V340 is a 6U single width VME module with one female D25 furnishing the waveform outputs and a 50-pin female SCSI connector providing sync outputs . A male D9 test connector allows for in crate testing of any channel without disturbing field wiring. Optional Built-In Self-Test is available.
July 2006 Highland Technology announced the release of its new J724 Electrical-to-Optical Converter. The J724 is a low profile single channel electrical to optical converter available in both 850 nM multimode and 1310 nM singlemode versions. The J724 allows fast timing and logic-level signals to be transported via fiberoptic levels to take advantage of the superior speed, attenuation, and EMI characteristics of optical fiber. The J724 builds on the already proven J720 electrical-to-optical converter. Its rugged packaging allows the e/o transition to be located wherever most convenient and the adjustable inputs are compatible with TTL, LVTTL, ECL, NIM, and most other common logic levels. The J724's timing link jitter is typically below 15 ps RMS when used with companion J730-1 850 nM and new J730-3 1310 nM optical-to-electrical converters. The J724-3 is intended for use with 9/125 micron singlemode fiber, but also usable with 62/125 micron multimode fiber. Because of the low temporal dispersion of singlemode fiber, a 1310 nm singlemode system allows superior timing stability and lower jitter over long distances. The J724 and J730 are ideal accessories for the Highland Technology P400 Digital Delay Generator.
March 2006 Highland moves to a new facility in San Francisco that will allow it to expand and improve its engineering and production capacities to meet customer demand. The building, formerly the historic Lotus Fortune Cookie factory, was refurbished specifically to accommodate Highland's requirements.
January 2006 Highland Technology announced the release of its new V470 Analog Output / Thermocouple Simulator. The 16-channel V470 VME Analog Output Module serves two primary applications. It provides outputs simulating J-, K-, E-, T-, R-, S-, B-, and N-type thermocouples with automatic reference-junction temperature compensation or it produces user-programmed high precision voltage outputs. The V470 has16-bit resolution over ten output voltage ranges from ±25mV to ±12.5V. Each channel can be programmed independently to any voltage or thermocouple range, can source up to 10mA at full scale, and has 1kV of isolation both from system ground and other channels. The V470 includes lookup tables for all common thermocouple types, which enables users to write desired temperature directly to VME registers. In thermocouple simulation mode each channel can be associated independently with the on-board temperature sensor or with any of the four reference junction sensors located in the external field-wiring termination panels. Any channel of the V470 may be switched to a front-panel D9 test connector for in-crate calibration checks without disturbing field wiring. An optional full built-in self test version is also available. The V470 is a 6U single-width VME board. Two front-panel D25 connectors interface to external devices. Each connector provides eight floating differential outputs and connections for two 4-wire RTDs.
January 2006 Highland Technology announced the release of its new V450 Analog Input Module. The V450 16-channel VME analog-to-digital converter can acquire both a wide range of DC voltages and thermocouple measurements for all major thermocouple types. Each fully isolated channel can be configured independently, and arbitrary sets of channels can be synchronized for true simultaneous data acquisition. In voltage mode, each channel of the V450 acts as a floating voltmeter, with 24-bit resolution over voltage ranges from ±25mV to ±250V. RMS noise is less than 5 PPM for most ranges at the 4 Hz sample rate, with 50/60Hz rejection of better than 80dB. In thermocouple mode, channels can measure thermocouples of types J K E T R S B and N, and resolve temperatures to 1/16°C. Any of four platinum RTD inputs may be used to sense an external reference junction, or an onboard temperature sensor can allow direct connection to the front panel inputs. Any combination of channels can be assigned to any voltage or thermocouple range, and voltage and thermocouple measurements can be mixed freely. Channels also feature programmable sampling rates up to 500Hz, switchable open input detection, and overvoltage protection to 350V regardless of configuration. Thermocouple loop resistance may be measured by user command; subsequent measurements are automatically compensated for burnout current errors without the error normally associated with open-thermocouple sensing. Relays are provided to reroute any input channel to a dedicated connector for calibration checks without disrupting field-wiring, and an automatic built-in self-test option is available. The V450 is a 6U single-width VME board. Two front-panel D25 connectors interface to external devices. Each connector provides eight isolated signal inputs and two RTD inputs. Calibration of both input signals and RTDs can be checked via the front-panel D9 connector.
January 2006 Highland Technology announced the release of its V365 VME Tachometer/Overspeed Module. The V365 is an 8-channel single-width 6U height VME module specifically designed to acquire low frequency inputs from industrial speed sensors. The V365 can measure frequency and period over a wide dynamic range, and is specifically designed to ensure reliable measurement in high-noise environments. The V365 provides eight tachometer input channels, each including a differential input amplifier and programmable signal conditioning. Four independent programmable overspeed blocks are provided and may be aimed at any selected tach channel. Each is programmable to trip on static or latched overspeed or underspeed conditions. Control provisions include relay polarity and startup override, and provision is made for self-test of the overspeed facilities. The V365 can be connected directly to common transducer types, including variable reluctance or hall-effect magnetic speed pickups, AC line voltage or alternator windings up to 150 volts RMS, optical pickups, reed-switch or signal-conditioned fuel flow meters, contact closures, or other special levels. Two SMB signal monitor connectors allow for the analog and digital signal levels of any selected channel to be monitored at any time. A third SMB connector allows for internally or externally generated self test signals for in crate testing.
July 2005 Highland Technology announced the release of its new T560 4-Channel Micro Digital Delay Generator. The T560 is a small, enclosed four channel digital delay generator intended for use in embedded OEM applications. It accepts a trigger pulse and generates up to four output pulses, with each pulse being independently programmable in delay and width. The trigger pulse may be generated internally or externally. The T560's timing has crystal-clock precision with zero indeterminacy and picosecond jitter relative to the trigger. The unit features delays to 10 seconds, resolution of 10ps, insertion delay of 25ns and jitter of 50ps. The standard T560 is equipped with a RS-232 remote interface. An optional 10/100 Ethernet interface is available allowing for remote monitoring and control of the device from anywhere on the network. The T560 Micro Digital Delay Generator is ideal for laser sequencing, radar/lidar simulation, or sequential event triggering. It is easily mounted within systems enclosures, allowing short cable runs and reliable, unattended operation. Customized versions of the T560 are available for high volume OEM applications.
July 2005 Highland Technology announced the release of its new Model J720/J730 Electrical/Optical and Optical/Electrical Converters. Highland Technology has introduced a pair of compact devices which convert logic levels to fiberoptic media for fast, low-noise transport over long distances. The model J720, is a compact electrical-to-optical converter, and the J730 optical-to-electrical converter is its companion receiver; both use commonly available ST-connectorized 62/125 micron multimode fiber. The J720 E/O converter is powered only by its logic-level input, and the J730 O/E converter requires a +12 volt supply, user-furnished or from an accessory wall-plug power adapter. A J720/J730 combination can transport a logic level or critical timing trigger kilometers in high EMI environments with link jitter below 10 ps RMS. The J730 provides a digital logic output with risetime below 750 ps, and a fast analog (180 MHz bandwidth) output is also provided for monitoring link integrity.
June 2005 Highland Technology Inc. has released the Model V730 6-Channel Optical-to Electrical Converter. When used with the compatible optical transmitter module, such as the V720, the V730 provides fast, low-jitter, EMI-proof distribution of pulses, triggers, and precision timing signals. The V730 is packaged as a single-width, 6U VME module and accepts 850nm optical inputs through multi-mode ST connectors using either single- or multi-mode fiber. Using an optional external power supply, the unit can also be used as an embedded converter without using a VME card cage. The module's electrical outputs produce TTL, ECL, and NNIM logic levels. The user can independently configure each channel's logic level and polarity. The complementary product to the V730-6 is the V720 6-Channel Electrical-to-Optical converter. Optical transmission signals allow highly precise timing signals to be distributed throughout an electrically noisy environment with no interference. The V720/V730 family of optical transmission converters makes implementing an optical distribution network easier.
July 2004 Highland Technology announced the release of its new V350 Function Generator. The V350 is a four-channel VME-module analog/digital waveform generator intended for use in the creation of arbitrary waveshapes synchronized with logic-level outputs, as used in control systems, radar simulation or other COTS applications. The V350's four versatile waveform generators are each capable of generating both one 12-bit analog waveform and up to four digital outputs. Channels may operate independently or may be synchronized within a module or across modules for operation at full 40 MHz rate or programmed sub-multiples. The V350 builds on Highland's arb technology for our customers who need to simulate complex waveform sequences at very high speeds. The V350 generates waveforms by scanning sequential data points stored in user-loadable memory, with outputs processed by digital-to-analog converters, smoothing filters, and output amplifiers, under the control of a versatile microengine architecture. The V350 also features Self-test and Demo modes to allow the user to make quick evaluations and verifications of test data. The V350 form factor is a 6U single board VME board. The standard front panel connectors are female SMA for waveform outputs, pulse outputs, clock and DB-9 female for two sync outputs and four logic inputs. Other connectors optional. The V350 Function Generator is available in both a standard and in a conformal-coated, wide-temperature range COTS version.
June 2004 Highland Technology, Inc., announces the release of the Model P400 Digital Delay and Pulse Generator. The P400, Highland Technology's first benchtop product, evolved from Highland's highly successful line of VME-based and OEM digital delay generators. Dollar for dollar, it has more features than other comparable DDGs. Many features have been included to make the P400 easy to use, such as an on-board help system and a large 4-line display. With a scant 25ns insertion delay, the P400 can be used in lab setups with tight tolerances. The four channels can be independently controlled as delay / width or leading / trailing edge pulses. The P400 allows a trigger rate of up to 10MHz. Those requiring an extremely low jitter rate can select the optional ovenized crystal oscillator. The onboard help system is always available at the touch of a button. Each button, input, output, and setting is explained. Using the help system, any user will be able to become quickly proficient with the P400 and its many features. The spinner knob and navigation buttons make controlling the P400 simple and intuitive. One of the most exciting new features of the P400 DDG is the optional Ethernet interface. Using a pre-existing Ethernet network, a user can control the P400 from across the bench or across the world. Setup involves merely plugging in an Ethernet cable to the back panel. The IP address can be set manually or automatically via a DHCP server.
March 2004 The new V660 VME Time-to-Digital Converter provides 12 independent timestampers which capture events in 256-sample FIFO memory for each channel.
August 2003 The new V385 VME Strain-Gage/Load Cell Module adds individual remotely-sensed excitation supplies to each of 8 channels, speeds acquisition of sensor data for general bridge-type transducer applications.
July 2003 Highland Technology, Inc., announced the release of Model V375 4-Channel VME Arbitrary Waveform Generator. The V375 builds on the success of its predecessor, the Model V370, by extending the output bandwidth to 300 kHz and adding four inputs for user waveforms to sum into the channel outputs. A new burst mode allows software or external input to trigger generation of one or more waveform cycles. Our VME arbs form the foundation of multi-million dollar test programs at major aircraft engine and power systems manufacturers. The V375 is a direct result of customer requests for new features to support their new product development. The V375 is designed with features that make it ideal for simulating sensor signals from complex rotating machines. An onboard microprocessor executes macro commands that simplify generation of pure and distorted polyphase AC waveforms, with amplitude, frequency, phase, and distortion components smoothly variable in real time. Other macros create complex pulse trains with real time control of pulse positions, amplitudes, and missing pulses. The module provides four memory-table waveform generators with 16-bit amplitude resolution and from 64 to 65,536 points per waveform. Four independent direct digital synthesizer (DDS) frequency sources step through the memory table at rates up to 15 MHz. The DDS frequencies are variable in real time in milli-Hertz increments, and per-channel divisors allow simulation of fractional "gear-ratio" waveforms. A synchronization capability links up to 64 channels across multiple modules. Each channel output features an analog summing stage that can mix up to four generated waveforms plus one user waveform per channel. And, a programmable gain stage on each output allows the user to dynamically scale the output waveform amplitude without reloading the memory table.
March 2003 The new V720 electrical / optical converter module for distributing timing signals in electrically noisy environments.