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LVDT

How is LVDT technology used for sensing?

February 15, 2021 By Randy Frank

Linear variable-differential transformer (LVDT) technology’s capability to accurately measure linear movement is used to provide a position to electrical output for pressure, acceleration and force measurements. For example, in a pressure sensor, the sensing element is a diaphragm that moves a rod or cylindrical core inside the coils of a differential transformer to change the […]

Filed Under: Featured, Frequently Asked Question (FAQ), LVDT, Pressure Sensor Tagged With: TE Connectivity

LHA-19-R series hermetically sealed AC-LVDTs

February 3, 2021 By Paul Heney

Alliance Sensors Group, a div of H.G. Schaevitz LLC, has expanded its linear position sensor line with the LHA-19-R series AC-LVDTs (Linear Variable Differential Transformers). These rugged yet high precision linear sensing devices are hermetically sealed, contactless devices with a radial connector designed for industrial and commercial applications such as factory automation, metal and paper […]

Filed Under: LVDT Tagged With: alliancesensorsgroup

NewTek contactless rotary position sensors

February 1, 2021 By Mike Santora

RV-8-30 Series Rotation

NewTek Sensor Solutions offers the RV series of rotary position sensors that measure and provide feedback on the rotary displacement of rotating elements in industrial benchtop and test and measurement applications. While featuring a full 360° mechanical range, these RVDTs provide an output proportional to shaft rotation over a range of ±30° or more in […]

Filed Under: LVDT, Rotary Tagged With: newteksensorsolutions

LVDT/RVDT/resolver simulator module occupies just one PXI slot

September 28, 2020 By Aimee Kalnoskas

Pickering Interfaces launched its model 41-670, a single module that can function as an LVDT, RVDT or resolver simulator. Occupying just one PXI or LXI chassis slot, the programmability of the module means that it minimizes the amount of hardware required. Also, since it sits in a PXI chassis alongside a customer’s other instruments, additional […]

Filed Under: LVDT Tagged With: pickeringinterfaces

LVDT electronics, Part 2: interface circuitry

September 22, 2020 By Bill Schweber

LVDT electronics

The interface electronics for the LVDT must excite the primary-side winding with a sine wave and then demodulate the two resultant secondary-side waveforms; modern ICs make this analog-signal process fairly straightforward. Part 1 of this FAQ looked at the basics of LVDT excitation, demodulation, and waveforms. This part looks at two standard ICs which implement […]

Filed Under: Featured, Frequently Asked Question (FAQ), LVDT, Position Tagged With: FAQ

LVDT electronics, Part 1: excitation and demodulation

September 21, 2020 By Bill Schweber

The interface electronics for the LVDT must excite the primary-side winding with a sine wave and then demodulate the two resultant secondary-side waveforms; modern ICs make this analog-signal process fairly straightforward. The first two parts of this LVDT article (see References) looked at the LVDT transducer itself, along with its attributes and history. This second […]

Filed Under: Featured, Frequently Asked Question (FAQ), LVDT, Position Tagged With: FAQ

NewTek spring-loaded LVDTs

August 24, 2020 By Mike Santora

GA-750 Paper Mill

NewTek Spring-Loaded LVDTs are used for surface measurement of paper, rubber, paneling, and other materials as part of quality control processes in sawmill, wood processing, paneling, rubber, and automotive production plants. Outfitted with precision wheels and other accessories for active monitoring of materials along a line or conveyor, the Spring-Loaded Gage Heads are mounted at […]

Filed Under: LVDT Tagged With: newtek

LVDT position sensor, Part 2: Characteristics

August 17, 2020 By Bill Schweber

The linear variable differential transformer (LVDT) is a widely used, inherently rugged, linear-position sensor offering accurate and consistent performance over a wide span of distances. Part 1 of this FAQ looked at the basic operation of the LVDT. This part looks at some of its other performance attributes and characteristics. Q: What does an LVDT […]

Filed Under: Featured, Frequently Asked Question (FAQ), LVDT, Position Tagged With: FAQ

LVDT position sensor, Part 1: basics and principles

August 16, 2020 By Bill Schweber

LVDT position sensor

The linear variable differential transformer (LVDT) is a widely used, inherently rugged, linear-position sensor offering accurate and consistent performance over a wide span of distances. Sensing of physical position is among the most commonly needed parameters in industrial, military/aerospace, robotics, scientific measurement, and control applications, and there are many sensors in use to accomplish this. […]

Filed Under: Featured, Frequently Asked Question (FAQ), LVDT Tagged With: FAQ

TE Connectivity custom hydraulic LVDT sensors

June 22, 2020 By Mike Santora

hydraulic-lvdt-sensor

As electronification and digitization continue to grow within Industry 4.0, reliable position sensors are critical in meeting the harsh demands of industrial hydraulic applications. LVDT position sensors from TE Connectivity (TE), a world leader in connectivity and sensors, offer standard and custom solutions based on hydraulic application requirements of ICT off-highway equipment and industrial machine […]

Filed Under: LVDT Tagged With: TE Connectivity

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