Pressure transducer

• US 20070233421A1
• Filed: 02/13/2007
• Published: 10/04/2007
• Est. Priority Date: 02/14/2006
• Status: Abandoned Application

• Current Assignee: ABB AG (ABB Limited)
• Original Assignee: ABB Patent GmbH (ABB Limited)
• Inventors: Scholz, Wolfgang, Krippner, Peter
• Application Number:
  US11/705,469
• Publication Number:
  US 20070233421A1
• Time in Patent Office: Days
• US Class Current: 702/138
• CPC Class Codes: G01D 3/022 having an ideal characteristic, map or correction data stored in a digital memory
• CPC Class Codes: G01L 19/083 electrical

Abstract

Exemplary embodiments are directed to processing a sensor signal using the correction parameters assigned to the sensor. A pressure transducer is disclosed for measuring and converting absolute pressure and/or differential pressure into an adequate electrical measurement signal with the aid of a processing unit having an associated read-only memory, in which is stored a set of correction parameters for correcting the measurement signal.

Claims

1. A pressure transducer for measuring and converting absolute pressure and/or differential pressure into an adequate electrical measurement signal, comprising:

a sensor arrangement having at least one sensor;

a processing unit; and

a read-only memory, in which is stored a set of correction parameters for correcting the measurement signal, wherein the sensor arrangement is inseparably connected to the read-only memory and detachably connected to the processing unit.

2. The pressure transducer as claimed in claim 1,

wherein the read-only memory and the processing unit are connected via a serial data interface

3. The pressure transducer as claimed in claim 2, comprising:

an A/D converter inseparably connected to the sensor arrangement, the A/D converter being connected to the serial data interface.

4. The pressure transducer as claimed in claim 3,

wherein the sensor arrangement is inseparably connected to a microcontroller, which is connected to the serial data interface, and in which an address-decoding program is loaded for the read-only memory and the A/D converter.