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    • 9. 发明授权
    • Method and system for compensation of ultrasonic sensor
    • 超声波传感器补偿方法及系统
    • US08656781B2
    • 2014-02-25
    • US12907019
    • 2010-10-18
    • Erick Michael Lavoie
    • Erick Michael Lavoie
    • G01N29/32G01S3/82
    • G01S15/931G01S7/52006G01S2015/938
    • A system and method for compensating ultrasonic sensors mounted on a vehicle for speed of sound variations. The ultrasonic sensor is operatively coupled to a power train control module having a pressure sensor that continuously monitors atmospheric pressure and a controller configured for computing a compensated speed of sound using the monitored atmospheric pressure. The ultrasonic sensor sends an ultrasonic wave and determines the time lag in receiving the reflected ultrasonic wave from an object. Subsequently, the ultrasonic sensor generates a signal corresponding to the relative distance between the vehicle and the object using the compensated speed of sound and the time lag.
    • 一种用于补偿安装在车辆上的超声波传感器用于声音变化速度的系统和方法。 超声波传感器可操作地耦合到具有连续监测大气压的压力传感器的动力传动系控制模块和被配置为使用所监测的大气压计算补偿的声速的控制器。 超声波传感器发送超声波,并确定从物体接收反射超声波的时滞。 随后,超声波传感器使用补偿的声速和时间滞后来生成对应于车辆与物体之间的相对距离的信号。