Patent ID: 7555955
Filing Date: 2009-07-07
Classification: B06B,G01S,G08G

Abstract:
1. An ultrasonic sensor for detecting an object, the ultrasonic sensor comprising: a sending element for sending an ultrasonic wave to the object; a receiving portion for receiving the ultrasonic wave reflected by the object, wherein the receiving portion is exposed to a space where the object exists; a first transmitting portion for transmitting a vibration of the ultrasonic wave received by the receiving portion, wherein the first transmitting portion is connected to the receiving portion; a second transmitting portion; and an oscillating portion which is oscillated by the vibration transmitted through the first and second transmitting portions from the receiving portion, wherein the second transmitting portion is coupled between the first transmitting portion and the oscillating portion so as to transmit the vibration from the first transmitting portion to the oscillating portion, and is transformable to protect the oscillating portion from a force of the vibration received from the first transmitting portion.