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Title: Lateral displacement and rotational displacement sensor

A position measuring sensor formed from opposing sets of capacitor plates measures both rotational displacement and lateral displacement from the changes in capacitances as overlapping areas of capacitors change. Capacitances are measured by a measuring circuit. The measured capacitances are provided to a calculating circuit that performs calculations to obtain angular and lateral displacement from the capacitances measured by the measuring circuit.
Inventors:
Issue Date:
OSTI Identifier:
1129382
Assignee:
The Regents of the University of California (Oakland, CA) LBNL
Patent Number(s):
8,704,536
Application Number:
13/002,762
Contract Number:
AC02-05CH11231
Resource Relation:
Patent File Date: 2009 Jul 28
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Works referenced in this record:

A new capacitive displacement sensor with high accuracy and long-range
journal, August 2006
  • Kim, Moojin; Moon, Wonkyu; Yoon, Euisung
  • Sensors and Actuators A: Physical, Vol. 130-131, p. 135-141
  • DOI: 10.1016/j.sna.2005.12.012