Operation device - MURATA MANUFACTURING CO.,LTD.

Title:

Operation device

Document Type and Number:

Japanese Patent JP5907220

Kind Code:

B2

Abstract:

A displacement sensor (10) has a long elastic member (20) having a rectangular shape. A piezoelectric element (30) is attached to a first main face of the elastic member (20). The piezoelectric element (30) has a long rectangular-shaped piezoelectric sheet (300) and electrodes (301 and 302) formed on both main faces of the piezoelectric sheet (300). The piezoelectric sheet (300) is made of poly-L-lactic acid and is at least uniaxially-stretched. The piezoelectric element (30) is attached so that the uniaxial-stretching direction of the piezoelectric sheet (30) forms 45° from a long-side direction of the elastic member (20). When the elastic member (20) is bent along the long-side direction, the piezoelectric sheet (300) is stretched along the long-side direction, and the piezoelectric element (30) generates voltage of predetermined level.

More Like This:

JP2016038254	COMPLEMENTARY STRAIN SENSOR, CONSTRUCTION METHOD AND DATA COLLECTION METHOD
JP2018077219	SIGNAL OUTPUT DEVICE AND IMAGING APPARATUS
JPS5968203	[Title of the device] The extensometer for a physiology experiment

Inventors:

Masamichi Ando
Hideki Kawamura

Application Number:

JP2014170010A

Publication Date:

April 26, 2016

Filing Date:

August 25, 2014

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MURATA MANUFACTURING CO.,LTD.

International Classes:

G01B7/16

Domestic Patent References:

JP7174646A
JP2008112471A
JP2006226858A

Foreign References:

WO2010143528A1
WO2009139237A1

Attorney, Agent or Firm:

Kaede International Patent Office

Previous Patent: Fibrous sheet

Next Patent: A steel plate provided with the alloying hot-dip-galvanizing layer excellent in plating wettability ...