LVDT
Linear Variable Differential Transformer measures distance traveled in a straight line.
See Also: Linear Position Sensors
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Product
Displacement Sensing Products
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Ideal for precise micro-position measurements, our miniature linear variable displacement transducers (LVDTs) provide accurate, repeatable measurement. Inductive contact, non-contact, slide, and spring-actuated sensors are available in various stroke lengths-- ideal in spaces where traditional LVDTs are too large. Our sensors operate in harsh environments over millions of cycles without degradation in performance
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Product
LVDT I/O Cards
CP3000
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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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Product
Digital to LVDT Converters
ST-DLVA
ITA
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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Product
8-Channel VME LVDT/RVDT Scanner
V550
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The V550 is a 6U, one-slot VME module which will acquire position data from up to eight LVDT (linear variable differential transformer) position sensors. The LVDT sensors are excited by an ultrastable synthesized sinewave generator, and conditioned by a precision 16-bit A/D converter followed by digital signal processing. The resident microprocessor supervises scanning and signal conditioning, and places updated position data in VME-accessible dual-ported data registers for instant access from the VME bus.
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Product
Multi-Channel Carrier Demodulator
CD280
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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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Product
4 Channels, 2-28 Vrms Input, 5 kHz-10 kHz
LD3
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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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Product
Linear Variable Differential Transformers (LVDTs)
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Whilst there are several ways to measure displacement, the Linear Variable Differential Transformer (LVDT) remains a popular transducer in most industrial applications. LVDTs initially were used as a means of taking dimensional readings in laboratories. They gained popularity in a wide variety of industrial monitoring and control applications, and whilst an LVDT is used to measure displacement the technology can be employed within other transducer types.
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Product
PXI/PXIe LVDT/RVDT Simulator Module, 4-Banks
43-670-101-AABBCC
Simulator
The 41/43-670-101 is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types. It has four 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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Product
24-Channel VME Synchro/LVDT Simulation/Acquisition Module
V545
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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.
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Product
3, 2 or 1 Channels, 0.5 VA, 1.5 VA or 3.0 VA
DLx
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Linear Variable Differential Transformer (LVDT) and Rotary Variable Differential Transformer (RVDT) are transformer-type voltage/current transducers that convert a linear/rotary movement of a core/shaft to a multi-wire differential AC electrical signal. Both deliver signals linearly proportional to the position of a shaft (magnetic induction core). An LVDT/RVDT simulator is used to convert digital positional commands to corresponding AC signals.
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Product
LVDT Signal Conditioner
NTC-6000
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Quick and easy setup with front panel push buttons and LED indicatorsSelectable excitation frequency, analog outputs and bandwidthAutomatic excitation synchronization for multiple unit systemsSelf-diagnostics for LVDT failure, disconnect, or short circuitDigital communications via RS-485 2-wire multi-drop busHot swapability — setup can be saved and reloaded via RS-485 portCybersecurity lockout and tamper detectWorks with nearly any AC LVDT, RVDT, or LVRT half bridge
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Product
LVDT Displacement Sensors "Economy Series"
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INELTA Sensorsysteme GmbH & Co. KG
With a higher Rel. linearity error and a smaller Operation temperature range as well as a simplified type of construction, these LVDTs can be poduced and sold cheaper.
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Product
LVDT Sensor Amplifiers
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Analog Devices signal conditioning ICs, together with linear variable differential transformers (LVDTs), can be used to convert mechanical position to a dc voltage. The IC provides both the excitation for the LVDT and the output conversion to dc level with a user selectable gain. ADI LVDT signal conditioners are available to interface with a wide range of LVDTs, including half bridge and standard 4- and 5-wire.
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Product
LVDT I/O Cards
CPE4000
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Computer Conversions Corporation
Computer Conversions’ CPe4000 Series are CompactPCI-Express (cPCIe) and PXI Express (PXIe) compliant: Synchro, Resolver, and LVDT/RVDT I/O Cards (predominantly output cards), with GEN1 and GEN 2 PCI Express interface, designed for accurate and reliable commercial, industrial and COTS-Mil. applications in test, simulation, motion control and shipboard data distribution. The CPe4000 Series drive up to 4 channels of Synchro, Resolver, 3-wire LVDT/RVDT outputs, or up to 8 channels of 2 wire LVDT/RVDT AC Sensor output sets.
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Product
Synchro to Digital-Resolver to Digital Converters
Synchro- Burst
Digital / Synchro Converter
Computer Conversions Corporation
Computer Conversions Corporation's Synchro-Burst is a complete 2 channel Synchro to encoder interface designed to easily integrate inherently absolute rotary synchro, resolver or linear LVDT position sensors into motion controls and counters that are normally only designed to facilitate incremental encoder feedback.
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Product
Miniature LVDT Position Sensors
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Miniature LVDTs are ideal where reliable measurements are needed in small spaces. With options for venting up to 30,000 psi, and temperature ratings to 400°F (200°C), these LVDTs operate in hydraulic equipment, embedded in robotics, and used in harsh downhole conditions.
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Product
Hamburg Wheel-Tracking Tester
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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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Product
P104 LVDT/RVDT Measurement Board
73LD4
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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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Product
VXI 12-Channel, 3-Wire LVDT/RVDT Simulation
65DL2
Simulator
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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Product
LVDT to Digital and RVDT to Digital Converters
ITA
Computer Conversions Corporation
LVDT Displacement transducers accurately measure position and displacement. The strength of the LVDT is in its principle of operation. As LVDT sensors are inductive, there is no electrical connection across the sensor, which ensures clean, accurate data and a long life.
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Product
VDT/Resolver Simulation Module for SLSC
Simulator
Bloomy's VDT/Resolver Simulation Module offers eight channels of variable differential transformer (VDT) sensor simulation at an unmatched price point. Its highly-flexible nature allows each channel to be configured independently for simulation of a linear variable differential transformer (LVDT), a rotary variable differential transformer (RVDT), or a resolver. Versatile, separate E1 and E2 returns allow each channel to be connected in a 4-, 5- or 6-wire configuration. The included VeriStand SLSC driver also allows each channel to simulate two 4-wire sensors where shared excitation is acceptable.
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Product
Measurement Amplifier In Rugged IP65 Housing
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INELTA Sensorsysteme GmbH & Co. KG
For DMS Force Sensors and LVDT
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Product
Digital to LVDT-Digital to RVDT Converters
ITA
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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Product
PXI/PXIe LVDT/RVDT/Resolver Simulator Module, 2-Banks
41-670-003-AABBCC
Simulator
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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Product
Signal Conditioner As Circuit Board Module
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INELTA Sensorsysteme GmbH & Co. KG
For LVDT Displacement Sensors, DMS Force Sensors
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Product
LVDT/RVDT Simulation Board
75DL1
Simulator
The 75DL1 is a cPCI LVDT/RVDT Simulation Board that provides eight 2-wire or four 4-wire transformer isolated programmable outputs. It provides wrap-around self-test, PXI compatibility, optional Excitation Supply, and is available for Military or Commercial applications.
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Product
PXI/PXIe LVDT, RVDT, Resolver Simulator Modules
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Linear variable differential transformers (LVDT) are electrical transformer sensors to measure linear displacement. Driven by an AC excitation source, the LVDT generates a pair of AC output signals modulated according to the core's mechanical position (displacement). LVDTs have been widely used in applications such as power turbines, hydraulics, automation, aircraft, satellites, nuclear reactors, and many others. These transducers have low hysteresis and excellent repeatability.
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Product
High Accuracy AC Reference Source
515
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Clarke-Hess Communications Research
The Model 515 High Accuracy AC Reference Generator fills a need for a relatively low cost and practical solution for supplying a reference excitation to typical LVDT and Synchro/Resolver transducers. The Model 515 has built-in load sensing which, in effect, yields "zero" output impedance and virtually eliminates the effects of fluctuating output loads. With up to 15 VA of output into loads with as much as 80 of phase shift, the Model 515 is ideally suited to driving inductive loads.
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Product
2 Channels, 28 Vrms Input, 10 kHz-20 kHz
LD4
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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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Product
VXI 16-Channel, 2-Wire LVDT/RVDT Simulation
65DL1
Simulator
NAI’s 65DL1 is a 16-channel, 2-wire, LVDT/RVDT Simulation Instrument on a VXI board. This single-slot, message-based board provides 16 independent, transformer-isolated, LVDT/RVDT, programmable 2-wire outputs (up to 34 V), wrap-around self-test, and an onboard programmable excitation supply.
