Title: Differential transformer displacement sensor of anti-high temp. and steam risistant
Application Number: 85101004 Application Date: 1985.04.01
Publication Number: 1002725 Publication Date: 1986.08.27
Approval Pub. Date: Granted Pub. Date: 1988.04.20
International Classifi-cation: G01B7/02,G01D5/22,H01F19/04,H01F21/08
Applicant(s) Name: Wuhan Inst., of Rock Body and Soil Mechanics, Chin Address:
Inventor(s) Name:
Attorney & Agent: HUANG QINGFANG
Abstract:
     This sensor is comprised of ceramic coil cylinder, case, link porcelain core, primary and secondary coils. The primary and secondary coil are both single layer and it is coiled by lacquered copper wire which is coarse and strong; the slots betwen coils are equal. This sensor may work on a high frequency and may be used for measuring dynamic and static displacement. It has advantages of wide temperature scop and frequency response, high mechanical strong and thermal stability and interference-free. The invention can be used to remote measurement by means of a long wire and can overcome the limitation of traditional differential trasformer-displacement sensor. So that expanding application scop and increasing accuracy.
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