Patent · US Active

System and method for testing a multimeter

US8345950B2 · kind B2 · utility

0Cited by
5References
12Claims
0Family size

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Key dates

Filing dateAug 11, 2009
Grant dateJan 1, 2013
Priority date—
Expiry dateSep 17, 2031

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01D2218/10
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A system and method for testing a multimeter provides a mechanical arm to set a gear of the multimeter. Values displayed on the multimeter are captured by a camera. The computer obtains the displayed values from captured images using a difference image method. If a difference between each two obtained values is in an allowable error range of the multimeter, the computer displays that the gear is qualified. If the difference between each two obtained values is not in the allowable error range, the computer displays that the gear is out of tolerance.

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