TECHNIQUE TO DETERMINE MIRROR POSITION IN OPTICAL INTERFEROMETERS

الوصف

A Micro Electro-Mechanical System (MEMS) interferometer system utilizes a capacitive sensing circuit to determine the position of a moveable minor. An electrostatic MEMS actuator is coupled to the moveable minor to cause a displacement thereof. The capacitive sensing circuit senses the current capacitance of the MEMS actuator and determines the position of the moveable minor based on the current capacitance of the MEMS actuator.

النواحي

The present invention relates in general to optical spectroscopy and interferometry, and in particular to the use of Micro Electro-Mechanical System (MEMS) technology in optical interferometers.

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