Abstract: A noncontact measurement and wireless transmission system for measuring distances. The noncontact measurement and wireless transmission system includes a support member; a measurement assembly being supported by the support member; and a transmitter being in operable communication with the measurement assembly for transmitting data output to a computer system for analysis.

Abstract: A vehicle performance analyzer works in conjunction with the OBD-II system of a motor vehicle to assist mechanics in assessing and optimizing the performance of the motor vehicle. No separate accelerometer is required to determine performance parameters such as acceleration, distance, horsepower, torque or the gear ratio.

Abstract: An accelerometer implementing a capacitive transducer, including circuitry for reducing the effective loading capacitance on a movable vane. The capacitive transducer includes a pair of shields, including an inner shield driven by the output of a unity gain amplifier which is coupled to the movable vane, and a second outer grounded shield isolated from and encompassing both the driven shield and the capacitive transducer. Thus, the accelerometer reduces both the effective parasitic loading capacitance by taking advantage of the well-known Miller theorem, while implementing a second grounded shield without affecting the parasitic loading capacitance to reduce EMI. A more linear capacitive based accelerometer is realized which can be practically implemented in vehicles, including vehicle performance analyzers used in automobiles for detecting changes in G-forces experienced during acceleration and deceleration of the vehicle.