A microprocessor determines the magnetic field intensity necessary to be applied to a linear magnetic fluid damper. The amount of damping directly counteracts the magnitude of the input road shock. Lord has designed and is developing a large linear damping system for seismic motions for buildings and bridges. A miniature microphone, speaker, and single-chip digital processor processes and analyzes the input audio signal. The individual's hearing parameters are handled by another chip, which amplifies the input signal, performs analog processing and stores the parameter data.
Advanced tape automated bonding is used for mounting and direct encapsulation of the chips in resin.
The chip is wedged inside the housing enclosure that is inserted into the ear canal. The condensed water is detected optically by an electro-optic detector. A thickness of dew is maintained by an electronic feedback control system by adjusting the mirror temperature. A platinum thermometer is embedded in the mirror surface to measure the temperature of the mirror. The mirror is illuminated by an LED and the reflected light is detected by a sensor.