Title:
SENSING DEVICE AND SENSING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/171081
Kind Code:
A1
Abstract:
A sensing device (10), provided with: a piezoelectric element (20) for outputting received ultrasonic waves as an electrical signal; a signal processing unit (40) for acquiring the electrical signal outputted from the piezoelectric element (20), the signal processing unit (40) being connected to the piezoelectric element (20); a switching unit (50) for switching between a state of electrical connection and a state of disconnection of the piezoelectric element (20) and the signal processing unit (40); and a determination unit (62) for sensing electrical noise on the basis of an acquired electrical signal when the signal processing unit (40) acquires an electrical signal in a case in which the switching unit (50) is in the disconnection state.
Inventors:
ASHIE KOJI (JP)
Application Number:
PCT/JP2017/013833
Publication Date:
October 05, 2017
Filing Date:
March 31, 2017
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01S7/526; G01S15/93
Domestic Patent References:
| WO2016035287A1 | 2016-03-10 | |||
| WO2013035643A1 | 2013-03-14 | |||
| WO2015090844A1 | 2015-06-25 |
Foreign References:
| JPH06194445A | 1994-07-15 | |||
| JP2014089077A | 2014-05-15 | |||
| JP2007115075A | 2007-05-10 | |||
| JP2009265009A | 2009-11-12 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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