Patent · US Expired

Device for the measurement and monitoring of a process parameter

US6928866B2 · kind B2 · utility

5Cited by

5References

9Claims

0Family size

Assignee

ENDRESS+HAUSER GMBH+CO.KG · DE

Inventors

Bernhard Michalski · Maulburg, DE
Bernd Strütt · Steinen, DE
Sebastian Heidepriem · Neuenbürg, DE

Key dates

Filing date	Dec 13, 2001
Grant date	Aug 16, 2005
Priority date	—
Expiry date	Dec 13, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q1/225
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention concerns a device for measuring and/or monitoring a process parameter, with a sensor, an intermittently working measurement circuit, which has at least one energy storer unit, wherein the measurement circuit or individual components of the measurement circuit are activated for a predetermined time span, the so-called active phase, and with a control center, wherein the measurement circuit and the control center are connected with one another over a two-wire line and wherein a control-/evaluation-unit is provided, which activates the measurement circuit at the earliest, when the energy in the energy storer unit has reached a predetermined level.

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