Patent · US Active

Sensor device

US10989588B2 · kind B2 · utility

0Cited by

3References

2Claims

0Family size

Assignee

TLV CO., LTD. · JP

Inventors

Mamoru Nagase · Kakogawa, JP
Akira Oizumi · Tokyo, JP
Hajime Kosaka · Tochigi, JP

Key dates

Filing date	Dec 26, 2019
Grant date	Apr 27, 2021
Priority date	—
Expiry date	Jan 15, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01H1/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor device includes: a holder having an insertion hole; a probe having a proximal end to be inserted in the insertion hole and having a portion to be inserted in the insertion hole, a diameter of the portion of the probe to be inserted in the insertion hole being smaller than a hole diameter of the insertion hole; piezoelectric elements housed in the holder, configured to be brought into contact with the proximal end of the probe directly or indirectly, a vibration of the probe acting on the piezoelectric elements; an O-ring (prevention member) disposed in the insertion hole and holding the probe to prevent the probe from contacting the holder, the probe being configured such that a tip of the probe is pushed against a measurement object to detect a vibration of the measurement object.

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