Patent · US Active

Linear travel measurement apparatus and measurement method for a compression travel of an electrically conductive spring and also a corresponding spring unit

US10036655B2 · kind B2 · utility

1Cited by

1References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Fabian Utermoehlen · Lippstadt, DE
Stefan Leidich · Rutesheim, DE

Key dates

Filing date	Sep 26, 2016
Grant date	Jul 31, 2018
Priority date	—
Expiry date	Oct 3, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/243
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A linear travel measurement apparatus is configured for a compression travel of an electrically conductive spring. A spring unit includes the linear travel measurement apparatus and a spring. The spring has an electrical contact at each of its ends and is electrically connected to a measurement circuit by corresponding electrical lines as measurement inductance. The measurement circuit detects a change in the measurement inductance, the change caused by the compression travel, and evaluates said change in order to ascertain the spring travel.

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