Patent · US Active

Method and arrangement for diagnosis of a final control element

US8122905B2 · kind B2 · utility

4Cited by
6References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 19, 2007
Grant dateFeb 28, 2012
Priority date—
Expiry dateDec 25, 2029

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/8326
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

The disclosure relates to a method and an arrangement for diagnosis of a final control element, which is actuated by a pneumatically operated actuating mechanism under the control of a control device, and which emits acoustic signals during conventional use. It is proposed to detect acoustic signals fed back into the pneumatic system of the actuating mechanism, and to derive from them the status data of the final control element. For this purpose, an acoustic sensor is arranged in the pneumatic-fluid supply line of the actuating mechanism, with the acoustic sensor being electrically connected to an analysis device. A pressure sensor is used as the acoustic sensor.

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