Product category:
Probes and sensors
News Release from: Macro Sensors | Subject: LVDT-based linear sensors and gauging probes
Edited by the Manufacturingtalk Editorial
Team on 19 February 2008
Precalibrated position sensor is sealed
A hermetically sealed and frictionless position sensor is designed as a long-life replacement for failing potentiometers in a wide range of industrial position measurement applications.
A sensor company specialising in the manufacture of Linear Position and LVDT-based linear sensors and gauging probes, Macro Sensors, has designed a position sensor that is hermetically sealed, frictionless and will serve as a long-life replacement for failing potentiometers in a wide range of industrial position measurement applications Applications include, as follows
This article was originally published on Manufacturingtalk on 16 Nov 2004 at 8.00am (UK)
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Radial sealed connector reduces installed length
Rugged, spring-loaded AC/DC-operated LVDTs are for dimensional or position measurement in harsh environments such as automotive factories, forges and foundries.
Signal conditioner supports half-bridge sensors
Macro Sensors has introduced a new single-channel DIN-rail mounted modular signal condition that supports LVDT, RVDT or half-bridge inductive sensors.
* Machine tool positioning.
* Hydraulic cylinder positioning.
* Valve position sensing.
Further reading
Signal conditioner supports LVDT, RVDT or VRT
Macro Sensors has introduced a new single-channel DIN-rail mounted modular signal condition that supports LVDT, RVDT or half-bridge inductive sensors.
Dual channel digital controllers are user-friendly
Two six-digit, dual channel controllers for applications involving LVDT-based displacement transducers or VR half-bridge gaging probes are economically priced.
* Automatic assembly equipment.
Offering frictionless position feedback similar to the potentiometer, the LP750 Series position sensors have no parts that wear out and are claimed to offer unlimited cycle life and greater performance than a potentiometer.
Novel coil winding configuration and digitally enhanced analog output enable a compact design, making units ideal for use in applications with limited installation space, said Macro Sensors.
* Stainless steel construction - constructed entirely of stainless steel, these hermetically sealed sensors are sealed against hostile environments to IEC standard IP-68.
The LP750 position sensors can, therefore, withstand the harsh and corrosive environments found in steel mills, power plants and petrochemical plants, said Macro Sensors to manufacturingtalk.com.
For example, the LP750 position sensors' reliability and capacity to withstand high ambient temperatures make them ideal for use in the position feedback of steam control valves in power plants.
The sensors' significant stroke to length advantage and environmental robustness in environmental extremes enables their use in cylinders implemented in hydraulic rams such as those found in construction equipment.
The LP750 position sensors can also be used in petroleum applications to provide down-hole drill head directional drilling position feedback control and valve position.
Electrical termination through a sealed radial connector permits access to either or both ends of the unit for better mechanical support and guidance.
It also makes position sensors easier to clean out and provides for a shorter installed length compared to units of the same range with an axial connection.
The LP Series position sensors are available in standard ranges of 4in (100 mm) to 25in (600 mm) and are offered in a precalibrated loop-powered 4-20 input/output or a nominal 24V DC input 0 to 10V DC output.
In addition to providing a high stroke to length ratio, high resolution, excellent repeatability and low hysteresis, these position sensors have a maximum linearity error of +/-0.25% of full-scale output.
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