Title:
ULTRASONIC SENSOR AND OBJECT DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/106211
Kind Code:
A1
Abstract:
An ultrasonic sensor (1) mounted to a moving body (V) comprises a fixing unit (3) and a conversion element (4). The conversion element has a proximal-end part (41), which is one end part in an axial direction following a directional axis (DA), and a distal-end part (42), which is the other end part, the conversion element performing a function for converting between ultrasonic vibration and an electric signal. The fixing unit is provided so as to be closer to the proximal-end part than is the distal-end part of the conversion element and fixedly supports the conversion element. The ultrasonic sensor has a transmission function and/or a reception function. With the transmission function, a drive signal is applied to the conversion element, whereby an ultrasonic wave is transmitted in a transmission direction oriented toward the distal-end part from the proximal-end part rather than the conversion element. With the reception function, ultrasonic vibration that has reached the conversion element from an external space is converted to a received signal by the conversion element.
Inventors:
KOYAMA YU (JP)
NAKAMATA KEITA (JP)
KOZUKI KOHEI (JP)
NAKAMATA KEITA (JP)
KOZUKI KOHEI (JP)
Application Number:
PCT/JP2022/044430
Publication Date:
June 15, 2023
Filing Date:
December 01, 2022
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H04R17/00; H04R17/10
Domestic Patent References:
| WO2018139194A1 | 2018-08-02 |
Foreign References:
| US20160209501A1 | 2016-07-21 | |||
| JP2009065380A | 2009-03-26 | |||
| JP2003174695A | 2003-06-20 | |||
| JP2021078126A | 2021-05-20 |
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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