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|Title: ||Micromachined Tunneling Displacement Transducers for Physical Sensors|
|Authors: ||Kenny, T. W.|
Kaiser, W. J.
Podosek, J. A.
Rockstad, H. K.
Reynolds, J. K.
Vote, E. C.
|Issue Date: ||1993 |
|Citation: ||Journal of Vacuum Science and Technology|
|Abstract: ||We have designed and constructed a series of tunneling sensors which take advantage of the extreme position sensitivity of electron tunneling. In these sensors, a tunneling displacement transducer, based on scanning tunneling microscopy principles, is used to detect the signal-induced motion of a sensor element. Through the use of high-resonant frequency mechanical elements for the transducer, sensors may be constructed which offer wide bandwidth, and are robust and easily operated. Silicon micromachining may be used to fabricate the transducer elements, allowing integration of sensor and control electronics. Examples of tunneling accelerometers and infrared detectors will be discussed. In each case, the use of the tunneling transducer allows miniaturization of the sensor as well as enhancement of the sensor performance.|
|Appears in Collections:||JPL TRS 1992+|
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