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发明授权
CN104050981B 利用激光调制的触点检测的装置和方法 有权

利用激光调制的触点检测的装置和方法
摘要：
本申请公开了利用激光调制的触点检测。一种装置经配置以检测换能器的空气轴承表面和使用调制热传感器信号的介质之间的触点。激光源产生调制后的激光。热传感器被布置在或接近空气轴承表面，并受到调制激光的循环加热。热传感器经配置以响应所述循环加热而产生经调制的传感器信号。
摘要（英）：

An apparatus is arranged to detect contact between an air bearing surface of a transducer and a medium using a modulated thermal sensor signal. A laser source produces modulated laser light. A thermal sensor is disposed at or near the air bearing surface and is subject to cyclic heating by the modulated laser light. The thermal sensor is configured to produce the modulated sensor signal in response to the cyclic heating.

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