Title:
PRESSURE DETECTION DEVICE AND PRESSURE DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/146043
Kind Code:
A1
Abstract:
A pressure detection device 20 includes: a piezoelectric element 33 that detects a pressure change via a diaphragm head 32 or the like; a circuit board 57 that is provided with a processing circuit that performs electrical processing with respect to a load signal outputted from the piezoelectric element 33; a conductive housing member 56, which is disposed to cover (house) the circuit board 57, and which is connected to the ground of the circuit board 57; and a housing (a leading end-side housing 31, the diaphragm head 32, and a rear end-side housing), which houses the piezoelectric element 33, the circuit board 57, and the housing member 56, and which is electrically insulated from the piezoelectric element 33, the circuit board 57, and the housing member 56.
Inventors:
KANAMORI YUTA (JP)
YOMOYAMA MASANORI (JP)
AIBA TETSUYA (JP)
TAKAHASHI IKUO (JP)
NAKAGAWA HIROSHI (JP)
TAKAHASHI KAZUO (JP)
SATOH YUSUKE (JP)
YOMOYAMA MASANORI (JP)
AIBA TETSUYA (JP)
TAKAHASHI IKUO (JP)
NAKAGAWA HIROSHI (JP)
TAKAHASHI KAZUO (JP)
SATOH YUSUKE (JP)
Application Number:
PCT/JP2017/006358
Publication Date:
August 31, 2017
Filing Date:
February 21, 2017
Export Citation:
Assignee:
CITIZEN FINEDEVICE CO LTD (JP)
CITIZEN WATCH CO LTD (JP)
CITIZEN WATCH CO LTD (JP)
International Classes:
G01L19/14; G01L23/10; G01L23/22
Foreign References:
| US6923068B2 | 2005-08-02 |
Other References:
See also references of EP 3421961A4
Attorney, Agent or Firm:
FURUBE, Jiro et al. (JP)
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