描写晚霞
专利名称：ULTRASONIC TYPE DISTANCE MEASURING APPARATUS
输怎么组词
发明人：TANAKA HARUTO
自由组合定律的实质
申请号：JP17268683
申请日：19830919
公开号：JPH0568668B2
公开日：
如何更换电脑桌面壁纸
19930929
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都江堰历史
面饼的做法摘要：PURPOSE:To make it possible to always accurately measure a distance even if the level of a receiving signal is changed, by correcting a measured distance by detecting the receiving peak value of a reflected ultrasonic wave from an object. CONSTITUTION:The peak value of the reflected ultrasonic wave from an object received by an ultrasonic receiver is detected by a peak value detecting means and the distance to the object measured by a distance measuring means is corrected on the basis of the correction value due to a measured value correcting means corresponding to the peak value. By this correction, for example, when a receiving level is lowered, it is prevented that the measured distance due to a delay time until the receiving level exceeds a threshold value becomes longer than an actual distance and, even if the level of a receiving signal is changed, distance measurement can be performed always accurately.
申请人：NISSAN MOTOR优雅反义词
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