公开(公告)号：WO2016019317A1

公开(公告)日：2016-02-04

申请号：PCT/US2015/043256

申请日：2015-07-31

Applicant: CHRIP MICROSYSTEMS

Inventor： HORSLEY, David ,  GUEDES, Andre ,  KIANG, Meng-Hsiung ,  PRZYBYLA, Richard ,  SHELTON, Stefon

IPC: H01L41/08 ,  G02B26/08

CPC classification number: G01S15/10 ,  B06B1/0215 ,  B06B1/0292 ,  B06B1/0644 ,  B06B1/0651 ,  B06B2201/51 ,  B06B2201/55 ,  B06B2201/70 ,  B81B3/0021 ,  G01S7/521 ,  G01S7/524 ,  G01S7/527 ,  G01S15/04 ,  G01S15/46 ,  G01S15/87 ,  G01S2015/465

Abstract: A miniature rangefinder includes a housing, a micromachined ultrasonic transducer, and signal processing circuitry. The housing includes a substrate and a lid. The housing has one or more apertures and the micromachined ultrasonic transducer is mounted over an aperture. The micromachined ultrasonic transducer may function as both a transmitter and a receiver. An integrated circuit is configured to drive the transducer to transmit an acoustic signal, detect a return signal, and determine a time of flight between emitting the acoustic signal and detecting the return signal.

Abstract translation: 微型测距仪包括壳体，微机械超声换能器和信号处理电路。 壳体包括基底和盖子。 壳体具有一个或多个孔，并且微机械加工的超声波换能器安装在孔上。 微机械超声换能器可以用作发射器和接收器。 集成电路被配置为驱动换能器传输声信号，检测返回信号，并且确定在发出声信号和检测返回信号之间的飞行时间。