Method for monitoring at least one infrared radiation source and device for monitoring the state of aging of an infrared radiation source

摘要

In a method for monitoring at least one infrared radiation source, in particular an infrared radiation source of a sensor device, in particular for monitoring the aging state of the infrared radiation source, wherein infrared radiation emitted by the infrared radiation source is detected by at least one reference detector formed by an infrared radiation detector, it is essential to the invention that at least a portion of the Infrared radiation emitted by the infrared radiation source is directed onto the reference detector by at least one infrared-radiation-reflecting surface, that the infrared radiation reaching the infrared radiation detector is detected, and that the value of the detected infrared radiation is compared with a stored value. Furthermore, the invention relates to a device for monitoring the aging state of an infrared radiation source, wherein at least one infrared radiation source is associated with at least one infrared radiation detector, and wherein the infrared radiation detector is associated with an evaluation device for evaluating the state of the infrared radiation source, is provided in the invention essential that the infrared radiation source at least one infrared radiation is associated with reflective body and that the infrared radiation detector is arranged in the beam path of the infrared radiation reflected by the reflective body.