| 发明名称 |
Ultrasonic sensor having diaphragm |
| 摘要 |
An ultrasonic sensor has a sensor body, a diaphragm, and a vibrator for generating ultrasonic and attached to the diaphragm. The diaphragm has a thinnest portion. The thinnest portion has a predetermined thickness by which reverberation of the diaphragm is restrained. The reflected ultrasonic can be detected correctly by this construction of the sensor.
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| 申请公布号 |
US2002036954(A1) |
申请公布日期 |
2002.03.28 |
| 申请号 |
US20010920719 |
申请日期 |
2001.08.03 |
| 申请人 |
KANI HIROYUKI;KAWASHIMA YASUHIRO;TSUZUKI TAKEO |
发明人 |
KANI HIROYUKI;KAWASHIMA YASUHIRO;TSUZUKI TAKEO |
| 分类号 |
H04R17/00;G01S7/52;G01S7/521;G01S15/93;G10K9/122;G10K9/20;(IPC1-7):H04R17/00 |
主分类号 |
H04R17/00 |
| 代理机构 |
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