Electronic field device with a sensor unit for capacitive...

Details Electronic field device with a sensor unit for capacitive... Electronic field device with a sensor unit for capacitive...

2002-11-30

2008-08-19

Wachsman, Hal D (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S050000, C702S052000, C702S064000, C702S065000, C073S30400R

Reexamination Certificate

active

07415366

ABSTRACT:
A field device electronics with a sensor unit for capacitive fill level measurements in a container, wherein the field device electronics is connected over appropriate signal paths with the sensor unit, wherein the field device electronics produces a voltage signal for driving the sensor unit and receives and evaluates a measurement current from the sensor unit. According to the invention, an analog/digital converter digitizing the analog measurement current, a microprocessor and a memory unit are present, wherein the microprocessor utilizes predetermined program routines to perform the production of the voltage signal and the evaluation of the measurement current and a compensation of interference parameters and a determination of the parameters of the sensor-container arrangement which are to be determined, with the associated programs being stored in the memory unit.

REFERENCES:
patent: 3786349 (1974-01-01), Devenyi
patent: 4451894 (1984-05-01), Dougherty et al.
patent: 5406843 (1995-04-01), Hannan et al.
patent: 5477473 (1995-12-01), Mandl et al.
patent: 6073488 (2000-06-01), Byatt et al.
patent: 6854055 (2005-02-01), Stinus et al.
patent: 6930609 (2005-08-01), Florenz et al.
patent: 2003/0192380 (2003-10-01), Florenz et al.
patent: 0271849 (1988-06-01), None
patent: 0338400 (1989-10-01), None
patent: 1091199 (2001-04-01), None
patent: 1108984 (2001-06-01), None
Translation of EP 0338400.

Affiliated with

Also associated with

Rating

Electronic field device with a sensor unit for capacitive... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic field device with a sensor unit for capacitive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic field device with a sensor unit for capacitive... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4002409