Method for manufacturing measuring transducers

US8789424B2 · kind B2 · utility

Assignee

• ENDRESS+HAUSER GMBH+CO.KG · DE

Inventors

• Andreas Mayr · Meitingen, DE
• Michael Philipps · Lörrach, DE
• Matthias Altendorf · Bad Kötzting, DE

Key dates

• Filing date: Nov 20, 2009
• Grant date: Jul 29, 2014
• Expiry date: Jan 18, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49004
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for manufacturing measuring transducers, especially pressure or pressure difference measuring transducers, in which a high degree of quality, safety and accuracy of measurement is achievable with little logistical and manufacturing effort. The measuring transducer has a memory readable and writable via an associated RFID interface, and at least one sensor for registering a physical, measured variable and for transducing such into an electrical variable, wherein the sensor is equipped with sensor electronics, which serves to condition the electrical variable into an electrical measurement signal dependent on the measured variable, and which is equipped with an RFID transponder, via which the sensor is supplied with energy, and via which measurement signals can be read out wirelessly. The measuring transducers and/or their sensors are subjected to at least one calibration and/or test procedure, in which the sensors are exclusively supplied with energy via their RFID transponders, and their measurement signals are read out via their RFID transponders, and measuring transducer specific and/or sensor specific data derived during the calibration and/or test procedure are stored …