Linear Travel Measurement Apparatus for a Compression Travel of a Telescopic Spring Unit, and Corresponding Telescopic Spring Unit

摘要

A linear travel measurement apparatus for a compression travel of a telescopic spring unit includes an electrically conductive spring. A telescopic spring unit includes a linear travel measurement apparatus of this kind. The spring is configured to form a measurement inductance, which is dependent on an effective length of the spring. The spring has a respective electrical contact at each of its ends and is connected to a measurement capacitance and to an evaluation and control unit by corresponding electrical connections. The measurement inductance forms an electrical LC resonant circuit with the measurement capacitance, the evaluation and control unit are configured to measure the resonant frequency of said LC resonant circuit, and the resonant frequency is given as a function of the compression travel.

主权项

1. A linear travel measurement apparatus is configured for a compression travel of a telescopic spring unit, the apparatus comprising:
an electrically conductive spring, the spring configured to form a measurement inductance which is dependent on an effective length of the spring, wherein the spring has a respective electrical contact at each of its ends and is connected to a measurement capacitance and to an evaluation and control unit by corresponding electrical connections, wherein the measurement inductance is configured to form an electrical LC resonant circuit with the measurement capacitance, the evaluation and control unit measuring the resonant frequency of the LC resonant circuit, and wherein the resonant frequency is given as a function of the compression travel.