急求外文翻译 关于测量技术与仪器的

Document Type and Number:United States Patent 5442592
Abstract:An ultrasonic distance meter cancels out the effects of temperature and humidity variations by including a measuring unit and a reference unit. In each of the units, a repetitive series of pulses is generated, each having a repetition rate directly related to the respective distance between an electroacoustic transmitter and an electroacoustic receiver. The pulse trains are provided to respective counters, and the ratio of the counter outputs is utilized to determine the distance being measured.
Publication Date:08/15/1995
Primary Examiner:Lobo, Ian J.

200分不少了哦
你能等到什么时候？
我电脑上应该有。。。
当年我做毕业设计的时候 我收集了一个班 的毕业论文（）
里面有论文 设计 翻译 原文。。。
我回去找找看先 。。。现在上班
明天在百度 hi 叫我 。。。

原文
Ultrasonic distance meter

Document Type and Number:United States Patent 5442592
Abstract:An ultrasonic distance meter cancels out the effects of temperature and humidity varia