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Difference between revisions of "LVDT Position Meters"
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[[File:LVDT Position Meters.jpg|thumb|right|LVDT Position Meters]] | |||
'''LVDT Position Meters(Linear Variable Differential Transformer Meters)''' has evolved from its limited use as a laboratory tool more than 60 years ago into a reliable and cost-effective linear feedback device, making it an appropriate technology for critical and reliable linear displacement measurements in an array of industrial, dimensional gauging and military or aerospace applications. Whether implemented as a stand alone component or as part of a control or safety system, the LVDT, also known as a linear position meter, is capable of providing linear displacement measurements from micro inches to 2 feet under various operating and environmental conditions with high accuracy and reliability. Essentially, the LVDT provides the information critical for a control system to perform its job. For example, the electromechanical control systems used in elevators rely on spring loaded LVDTs to provide the necessary position feedback for proper alignment of elevator cars at building floors upon arrival. Measuring the difference between the frame and car position, the LVDT linear position meters provide output to a control system that uses the displacement information to adjust the travel of the frame, so when the doors of the car open, the car floor is level with the floor upon which passengers are exiting. | |||