Patent · US Active

Variable resistor arrangement, measurement bridge circuit and method for calibrating a measurement bridge circuit

US9568523B2 · kind B2 · utility

2Cited by

3References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ingo Herrmann · Friolzheim, DE
Roland Mueller-Fiedler · Leonberg, DE
Veronique Krueger · Stuttgart, DE

Key dates

Filing date	Sep 6, 2012
Grant date	Feb 14, 2017
Priority date	—
Expiry date	Jun 14, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01C10/16
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A measurement bridge circuit includes a first branch and a second branch. The first branch contains a first resistor which is sensitive to measured variables and an invariable resistor connected in series. A first tap point is located between the first resistor and the invariable resistor. The second branch contains a second resistor which is sensitive to measured variables and a variable resistor arrangement connected in series. The variable resistor arrangement includes a first component having an invariable electrical resistance value and a second component having a variable electrical resistance value. The second component is connected in parallel with the first component in order to vary a total electrical resistance value for the variable resistor arrangement. A second tap point is located between the second resistor and the variable resistor arrangement.

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