Diagnosesystem und -verfahren für einen Thermistorverstärkerstromkreis

Details

Veröffentlichungs-Nr.

EP2477017

Aktenzeichen

EP12151308

Anmeldetag

16. Januar 2012

Veröffentlichung

11. Dezember 2019

Erteilung

11. Dezember 2019

Rechtsraum

EP

IPC

G01K7/24G01K15/00G01R31/28

Abstract

A diagnostic system (40) and a diagnostic method for a thermistor amplifier circuit (30) are provided. The system includes a transistor (100) electrically coupled to a controllable variable resistor (102) having a predetermined resistance. The transistor (100) applies a test voltage signal to the circuit indicative of a first temperature value. An amplitude of the test voltage value is indicative of a simulated thermistor temperature value. The microprocessor (190) determines a test temperature value based on the amplitude of an output voltage of the circuit (30). The microprocessor (190) also determines an inaccuracy value based on the test temperature value and the simulated thermistor temperature value.

Anmelder

Firmen

ABB Schweiz AG
General Electric Company

Land

🇨🇭 Schweiz

Fachgebiete