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Linear position sensors use contact or non-contact methods to measure the speed and/or position of an object. They use many different sensing technologies. Capacitance sensors are used with both conductive and nonconductive materials, but are very sensitive to environmental variables. Eddy current sensors contain two coils: an active coil that indicates the presence of a conducting target, and a secondary coil that completes a bridge circuit. Fiber optic sensors use a pair of adjacent fibers to carry light to a target and receive reflected light from the object. Inductive sensors are non-contact devices that determine an object’s coordinates with respect to a reference point. Linear encoders sense and digitize position changes for control systems. Linear potentiometers produce a resistance output proportional to an object’s displacement or position. Linear variable differential transformers (LVDT) produce electrical outputs proportional to the position of a solid, cylindrical core. With magnetoresistive sensors, the resistance of a conducting strip is a function of the direction and magnitude of an applied magnetic field. With magnetostrictive sensors, displacement is deduced from the change in state of a magnetic field generated by a ferromagnetic material. Photoelectric sensors use reflected beams of light to measure distance or displacement. Ultrasonic sensors reflect acoustical signals and calculate distance based on the signal’s return time and the measurement medium’s propagation velocity. Variable reluctance sensors are also available.  

Selecting linear position sensors requires an analysis of device categories and operating specifications. Suppliers typically divide products into the following categories: sensors, sensor elements, instruments, gauges, and recorders. Sensors, a category that includes transducers, include packaging and signal conditioning. By contrast, bare sensor elements or chips do not. Instruments or meters are self-contained linear position sensors that produce local outputs and include signal processing or analysis. Gauges or indicators are sensing devices with integrated dials or simple readouts. Recorders and totalizers measure values or accumulate totals. They may also provide statistical functions. Operating specifications for linear position sensors include temperature range, shock rating, and vibration rating. Linear range is usually measured in inches (in). Accuracy is a percentage of full-scale.   


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Fiber optic elements are flexible strands of glass or plastic capable of transmitting light along its length by maintaining a near total internal reflection of the light being accepted at its input... (Read More)
Optical triangulation sensors use reflected waves, whose source may be a LED, infrared, or laser source to pinpoint position and displacement. A sensor, usually integrally housed with the emitter,... (Read More)
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Engineering Web: Linear Position Sensors, All Types
Pages: 1 - 5 of 8415914
Zetex products - ZMX, ZMY, ZMZ series - Magnetic sensors (linear position)
Available with single or dual sensors and with or without an internal magnet, the sensors suit a range of linear position measurement applications. Features. *Output proportional to magnetic field * ...
See Zetex Inc. Information
Linear Position Sensors
Linear Position Sensors. designed for use in legacy OEM applications. 01/04/2004. Reference: 7573. The PRH 812 series AC-LVDTs serve as cost-effective replacement units, offering the same form, fit ...
eFunda Directory Service: Motion Control > Linear Position Sensors
Motion Control > Linear Position Sensors (1 Company).  1 company matched  SpaceAge Control, Inc.. Linear and Motion Components. Linear Position Sensors. Test Equipment. Displacement Transducers. www.spaceagecontrol.com ...
eFunda Directory Service: Sensors and Transducers > Linear Position Sensors
MSI Sensors, Division of Measurement Specialties, Inc.. Acceleration and Vibration Sensors, Accelerometers, Level Sensing, Linear Position Sensing, Rotary Position Sensing, Tilt.... www.msisensors.com ...
Linear Position Sensors - latest news
Linear Position Sensors. Our RSS feed for Linear Position Sensors press releases. GPS system compensates for slanted test tracks. The 'surface roll' and 'surface pitch' outputs on the RT products' CAN ...

Part Numbers for Linear Position Sensors, All Types

Part # Distributor Manufacturer Product Category Description
LPS-NT B 50   Mesa Systems Company Linear Position Sensors and Switches, Inductive 10 bit binary output, no magnetic pickup required, absolute measurement
LPS-NT B 50   Mesa Systems Company Linear Position Sensors, All Types 10 bit binary output, no magnetic pickup required, absolute measurement
HMR4001   Honeywell SSEC Linear Position Sensors and Switches, Magneto Resistive Continuous PWM and analog voltage outputs, small PCB package
LPS-NT A 100   Mesa Systems Company Linear Position Sensors, All Types 0-10V analog output, no magnetic pickup required, absolute measurement
LPS-NT A 100   Mesa Systems Company Linear Position Sensors and Switches, Inductive 0-10V analog output, no magnetic pickup required, absolute measurement

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