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1. 发明授权

US06462561B1 Standoff distance variation compensator and equalizer 失效
标题翻译：间距距离变化补偿器和均衡器
公开(公告)号：US06462561B1
公开(公告)日：2002-10-08
申请号：US09616971
申请日：2000-07-14
申请人： Timothy A. Bigelow , Nasser Nidal Qaddoumi , Reza Zoughi , Lawrence M. Brown
发明人： Timothy A. Bigelow , Nasser Nidal Qaddoumi , Reza Zoughi , Lawrence M. Brown
IPC分类号： G01R2732
CPC分类号： G01N22/00
摘要： An inventively enhanced near-field sensor includes circuitry which removes variation in standoff distance (of the sensor from the inspected object) as a factor in the inspection system readings. An original output voltage which varies linearly according to standoff distance is, modified and added to a counterbalancing output voltage which equivalently but oppositely varies linearly according to standoff distance, resulting in a constant output voltage regardless of standoff distance. For calibration purposes, a third output voltage can also be summed along with the modified output voltage and the counterbalancing output voltage. Since the effect of surface variation is nullified, the practitioner can more truly assess the interior physical condition of the inspected object, knowing that the object's surface roughess is rendered irrelevant.
摘要翻译：一种发明增强的近场传感器包括作为检查系统读数的一个因素消除了距检测对象的传感器的距离距离变化的电路。根据间隔距离线性变化的原始输出电压被修改并添加到平衡输出电压，其等效但相反地根据间隔距离线性地变化，导致恒定的输出电压，而不管间隔距离。为了校准目的，第三输出电压也可以与修改的输出电压和平衡输出电压相加。由于表面变化的影响无效，实践者可以更加真实地评估被检查对象的内部身体状况，因为知道对象的表面浮雕是无关紧要的。

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