Patent · US Active

Precision AC current measurement shunts

US8111060B2 · kind B2 · utility

0Cited by
6References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 1, 2009
Grant dateFeb 7, 2012
Priority date—
Expiry dateJul 30, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R1/203
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A more precise and cost effective means than previously commercially available for measuring alternating currents up to 100 amperes in the frequency range from direct current to 100 kilohertz can be measured with precision approaching 0.001% employs a shield around a resistive network. The shield is electrically isolated from the resistive network, but acts as a heat sink to draw heat generated by the resistive network away, promoting fast stabilization times. The shield also provides electrical shielding from outside interference allowing the geometric arrangement of elements in the resistive network to minimize induced inductance and capacitance.

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