Thermistor-bolometer with Self-cancellation for Incident Rays from Wide Angle
Details
A thermistor-bolometer made the field of view narrow with self-cancellation is proposed. Thermal infrared detectors used for radiation thermometers have generally some weak points. One of them is a drift caused by the fluctuation of incident rays from wide angle, which contain an inner radiation of optical apparatus. The structure fabricated with micro-machine technology is studied to reduce the drift by the self-cancellation. The thermistor-bolometer is composed of two pairs of thin film thermistors, namely sensing pair and cancellation one. As a result, the self-cancellation for incident rays from wide angle is proved.
