Patent ID: 6211784
Filing Date: 2001-04-03
Classification: G01S,H03K

Abstract:
An object detector comprising:a detector for outputting a detected quantity based on a presence and absence of an object to be detected;a setting device for setting a threshold based on the detected quantity;a calculating device for calculating a detection ratio based on the threshold set by the setting device and the detected quantity;a comparator for comparing the detected quantity obtained by the detector with the threshold set by the setting device and outputting a compared result;a display for numerically displaying either 1) the detected quantity obtained by the detector, 2) the threshold set by the setting device or 3) the detection ratio calculated by the calculating device;a mode switch for switching the display between displaying 1) the detected quantity obtained by the detector, 2) the threshold set by the setting device and 3) the detection ratio calculated by the calculating device and;an adjuster for adjusting the threshold set by the setting device wherein the display displays the new threshold values as they are being adjusted by the adjuster.