LVDT
Linear Variable Differential Transformer measures distance traveled in a straight line.
See Also: Linear Position Sensors
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LVDT I/O Cards
CP3000
Computer Conversions Corporation
Universal AC Sensor interface digitizes up to 8 channels of individually Programmable Synchro, Resolver and LVDT/RVDT sensor inputs on a 3U cPCI (Compact PCI) and PXI Compatible plug-in circuit cardProduct allows users to interface into the widest variety of AC Position sensors all programmable within a single cardA must have for anyone using LVDT-RVDT's, Synchros and Resolver sensors or signals, electronic gauging, motion control, and instrumentation.
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Signal Conditioner
INELTA Sensorsysteme GmbH & Co. KG
Signal Conditioning of LVDT Displacement Sensors and Force Sensors
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Digital to LVDT Converters
ST-DLVA
Computer Conversions Corporation
The SLVT Series are complete, low profile, continuously updating, single channel, Isolated Digital to LVDT Converters used to simulate the output of LVDT's (Linear velocity displacement transducers), RVDT's (Rotary...) and other phase/voltage sensitive AC devices.
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4 Channels, 28-90 Vrms Input, 47 Hz-1 kHz
LD5
A linear variable differential transformer (LVDT) is a type of electrical transformer/transducer used for measuring linear displacement (position). A counterpart to this device used for measuring rotary displacement is called a rotary variable differential transformer (RVDT). The RVDT is like an LVDT in that it measures a positional displacement, however, the displacement, which is still a linear proportional function, is based on rotary instead of linear positional movement.
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VXI 12-Channel, 3-Wire LVDT/RVDT Simulation
65DL2
NAI’s 65DL2 is a 12-channel, 3-wire, LVDT/RVDT Simulation Instrument on a VXI board. This single-slot, message-based board features up to 12 stimulus channels of 3-wire LVDT/RVDT, wraparound self-test, and onboard programmable excitation supply. The board is uniquely versatile, as each excitation input and output voltage is programmable. In addition, each channel can be programmed to be controlled by an external DC voltage. A replacement for the 5410C-83, the 65DL2 is ideally suited for defense, commercial aerospace, and industrial applications.
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Hamburg Wheel-Tracking Tester
The Hamburg Wheel-Tracking Tester is used to test submerged, compacted Hot Mix or Warm Mix Asphalt specimens as per standard.The device consists of a reciprocating wheel that is rolled over the specimens while measuring the rate of permanent deformation. A constant load of 705 N ±4.5 N is applied to the specimens with a sinusoidal wheel speed of 1 ft/sec in a constant temperature controlled water bath up to 70 °C (± 1.0 °C). An LVDT jig is used for continuous measurement of permanent deformation along the path of the rolling wheel. Accommodates cylindrical or slab specimensSoftware for automatic determination of Stripping inflection PointNumber of passes to SIP, number of passes to failure and other calculated parametersStainless steel construction with temperature controlled water bath up to 70ºC
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LVDT Displacement Sensors With Ball Swivel Heads
INELTA Sensorsysteme GmbH & Co. KG
This LVDT Series is made for a rough, industrial use. The housing having a diameter of 20mm is fastened "floating" to the application using two ball swivel heads. There is a diversity of displacements up to 200m possible.
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PXI/PXIe LVDT/RVDT Simulator Module, 2-Banks
43-670-103-AABBCC
The 41/43-670-103 is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types. It has two banks, each capable of simulating the output of a single 5 or 6-wire VDT or resolver, or dual 4-wire utilizing a shared excitation signal.
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PXI/PXIe LVDT/RVDT/Resolver Simulator Module, 2-Banks
43-670-003-AABBCC
The 41/43-670-003 is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types, as well as resolvers. It has two banks, each capable of simulating the output of a single 5 or 6-wire VDT or resolver, or dual 4-wire utilizing a shared excitation signal.
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P104 LVDT/RVDT Measurement Board
73LD4
NAI’s 73LD4 is a PC104-compliant LVDT/RVDT Measurement Board with six separate transformer-isolated channels. The channels can incorporate up to six programmable LVDT/RVDT-to-Digital Tracking Converters in a stack-through module. Each channel is programmable for 2-, 3-, or 4-wire inputs that automatically range between 2.0 volts and 28 volts, so there is no need to purchase multiple boards set for specific inputs. Operating frequency between 360 Hz and 10 kHz can be specified. Each channel also produces differential incremental encoder (A & B) outputs with programmable resolution and a zero-degree marker pulse.
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General Purpose - AC Operation
Columbia Research Laboratories
The S Series LVDT's are Columbia's general purpose line of LVDTs. They are designed to sense linear displacement over the ranges of +/-0.04" to +/-0.30" and translate this motion into a precisely proportional voltage for measurement and control.
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DC to LVDT and DC to RVDT Converters
Computer Conversions Corporation
The SLVT Series are complete, low profile, continuously updating, single channel, Isolated Digital to LVDT Converters used to simulate the output of LVDT's (Linear velocity displacement transducers), RVDT's (Rotary...) and other phase/voltage sensitive AC devices. They provide a very precise linear AC voltage output proportionate to the magnitude of the input data, in or out of phase respective of the AC reference input as determined by the MSB of the input word (offset binary format).
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High-Temperature Extensometers < 1000°C Capacitive
2632 Series
Is typically used in hot tensile applications with tube type furnaces and consist of a separate measuring unit and suspension arm assembly. The measuring unit uses an LVDT with a fixed travel that remains outside of the furnace, the arms are located mostly inside of the heating system and attach the specimen to the measuring unit.
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2 Channels, 28 Vrms Input, 10 kHz-20 kHz
LD4
A linear variable differential transformer (LVDT) is a type of electrical transformer/transducer used for measuring linear displacement (position). A counterpart to this device used for measuring rotary displacement is called a rotary variable differential transformer (RVDT). The RVDT is like an LVDT in that it measures a positional displacement, however, the displacement, which is still a linear proportional function, is based on rotary instead of linear positional movement.
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Multi-Channel Carrier Demodulator
CD280
The CD280 Carrier Demodulator is a complete multi channel system in a small package which houses a plug-in power supply and 4 carrier demodulator circuit boards. The power supply provides regulated 5 Vac 5 kHz carrier power for Variable Reluctance and LVDT transducers , and the carrier demodulators demodulate and amplify the input signals to a 10 Vdc full-scale output. Zero and span adjustments are available for each channel. The system operates from 115 Vac, 50 to 400 Hz, line power.
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Inductive Sensors (LVDT)
induSENSOR
Micro-Epsilon offers a large range of inductive sensors for displacement and position measurement from conventional LVDT sensors and inductive sensors with integrated controller to customer-specific high-volume versions. The induSENSOR displacement sensors from Micro-Epsilon are used in automated processes, quality assurance, test rigs, hydraulics, pneumatic cylinders and automotive engineering.
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PXI/PXIe LVDT/RVDT/Resolver Simulator Module, 2-Banks
41-670-003-AABBCC
The 41/43-670-003 is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types, as well as resolvers. It has two banks, each capable of simulating the output of a single 5 or 6-wire VDT or resolver, or dual 4-wire utilizing a shared excitation signal. This allows the module to simulate up to 2 channels of 5 or 6-wire or 4 channels of 4-wire.
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Embedded Synchro - Resolver -
LVDT I/O Cards
Computer Conversions Corporation
100% Transformer Isolation is offered for all AC I/O, and various Isolated DC converters are available as standard product, eliminating concerns for ground-loops, ground interjected (intermittent and ghostly) field noise, inductive surges, differing potentials, and high voltage field transients from effecting the card itself, the sensitive ISA bus backplane and any other device or system sharing these signals.
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MINITAURs - 8-channel universal DAQ system
MINITAUR-S
Mixed signal 8-channel data acquisition system and multichannel data logger with cutting-edge technology at an attractive price. Universal analog inputs can accommodate various signals like strain gage, IEPE, voltage, current, RTD, thermocouple, and LVDT.


















