Patent · US Expired

Sensor for currentmeter

US4552016A · kind A · utility

4Cited by
3References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 9, 1983
Grant dateNov 12, 1985
Priority date
Expiry dateAug 9, 2003

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01P5/247
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A sensor for a currentmeter includes a supporting member which is provided to support a pair of transmitter/receiver units which rotate around an axis that is not parallel to (i.e.-intersects) a transmission path of supersonic waves which propagate between the units. Sing-around signals which are transmitted correspond to each rotating position of the supporting member. Since only one pair of transmitter/receiver units is required, current turbulence caused by the supporting member is reduced so that a highly precise measurement of the current flowing between the pair of transmitter/receiver units may be obtained.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.