HEATABLE INFRARED SENSOR AND INFRARED THERMOMETER COMPRISING SUCH AN INFRARED SENSOR

摘要

This invention relates to an infrared sensor having an electrically heated sensor housing, the sensor housing is electrically heated Electrical heating current comprises a strip conductor track structure 14 in the form of the heating device which is attached on the ceramic substrate 10, and the heating power of the heating device is controlled by the control device, if necessary. Ceramic substrate 10 is, for example ceramic insulating material with appropriate thermal conductivity, the aluminum oxide ceramic, aluminum nitride ceramic is made up of, or beryllium oxide ceramic. The ceramic substrate may have any shape depending on the requirements, for example symmetrical base surface, an octagonal base surface is particularly preferred, and that is why can be inexpensively produced in the form of a panel, and can be easily separated because. Ceramic substrate 10 is preferably formed in the bottom of the sensor housing, containing at least one element for the infrared sensor, and supports the thermal sensor ranks 16. Further, for example, includes an electric strip conductor, which serves as the contact surface (12a) of the corresponding housing cover 12. Through-contact (22) functions as a electric connection between the ground surface and the upper surface (10a) of the ceramic substrate 10. Electric heating track and the strip conductors (14, 12) may preferably be realized in the form of a thick film track. The above-mentioned infrared sensor is especially suitable for measuring tip of an infrared thermometer for measuring the temperature of the ear. ;