Langzeitvibrationssensor und Verfahren zur Korrektur des Ausgabewertes des Langzeitvibrationssensors

Details

Veröffentlichungs-Nr.

EP2551653

Aktenzeichen

EP12005470

Anmeldetag

26. Juli 2012

Veröffentlichung

7. November 2018

Erteilung

7. November 2018

Rechtsraum

EP

IPC

G01H11/02G01V1/18G01V13/00

Abstract

A long-period vibration sensor includes an overdamped accelerometer including a magnet fixed to the inside of a casing, a detection coil disposed between magnetic poles formed due to the magnet, a bobbin configured to hold the detection coil, and a support spring configured to support the bobbin in the casing so that the bobbin can vibrate in a predetermined direction, a voltage being outputted from the detection coil when the bobbin is damped, a plurality of digital filters having different frequency characteristics from one another, a selection module configured to select one digital filter from the plurality of digital filters based on an output value of the voltage outputted from the overdamped accelerometer, and a correction module configured to correct the output value of the voltage outputted from the overdamped accelerometer using the digital filter selected by the selection module.

Anmelder

Firma

Mitutoyo Corporation

Land

🇯🇵 Japan

Fachgebiete