Abstract: A proximity sensor for determining a position of an object. The proximity sensor includes a SAW device having a load end and an input end for receiving an input pulse. A sensing section connects to the load end of the SAW device. When the object is in a first position, the sensing section provides a first response indicative of the first position and, when the object is in a second position, the sensing section provides a second response indicative of the second position such that the position of the object can be determined based upon the response to the input pulse.

Abstract: A proximity sensor for determining a position of an object. The proximity sensor includes a SAW device having a load end and an input end for receiving an input pulse. A sensing section connects to the load end of the SAW device. When the object is in a first position, the sensing section provides a first response indicative of the first position and, when the object is in a second position, the sensing section provides a second response indicative of the second position such that the position of the object can be determined based upon the response to the input pulse.

Abstract: Determining a shaft balance adjustment includes measuring an initial vibration of the shaft, determining if the initial vibration is greater than a predetermined value, and, if the initial vibration is greater than the predetermined value, determining an adjustment by choosing a best adjustment for each possible location for adjustments. Choosing the best adjustment may include choosing an adjustment that causes a lower amount of vibration than adjustments not chosen. Measuring an initial vibration may include using an accelerometer. Measuring an initial vibration may include using conditioning electronics in connection with the accelerometer. The predetermined value may be 0.01 ips.