Abstract: A method for monitoring radiation by an optical sensor which generates a signal, such as a shut-off signal, which influences the radiation when subjected to radiation. A sensor with dark current pulses is used, which are assessed as a functional capability signal of the sensor.

Abstract: A method for monitoring radiation by an optical sensor which generates a signal, such as a shut-off signal, which influences the radiation when subjected to radiation. A sensor with dark current pulses is used, which are assessed as a functional capability signal of the sensor.

Abstract: The invention relates to an assembly and method for detecting laser radiation which hits a disc (20, 28) sealing an opening (16, 18) of an enclosure, wherein at least one sensor (22) detecting the radiation is aligned having the radiation sensitive region (24) thereof on a circumferential edge section (26) of the disc, which is designed to be radiation-conducting. In order to enable secure monitoring both of the disc and of the enclosure, without a plurality of sensors being required, according to the invention, the enclosure has two walls (12, 14) spaced apart from each other and having openings (16, 18) which are sealed by the disc (20), the disc (20, 28) is arranged between the walls at the edge and the sensor (22) is arranged having the sensitive region (24) thereof between the walls, spaced apart from the disc or within an opening of the disc.

Abstract: The invention relates to an assembly and method for detecting laser radiation which hits a disc (20, 28) sealing an opening (16, 18) of an enclosure, wherein at least one sensor (22) detecting the radiation is aligned having the radiation sensitive region (24) thereof on a circumferential edge section (26) of the disc, which is designed to be radiation-conducting. In order to enable secure monitoring both of the disc and of the enclosure, without a plurality of sensors being required, according to the invention, the enclosure has two walls (12, 14) spaced apart from each other and having openings (16, 18) which are sealed by the disc (20), the disc (20, 28) is arranged between the walls at the edge and the sensor (22) is arranged having the sensitive region (24) thereof between the walls, spaced apart from the disc or within an opening of the disc.

Abstract: The invention relates to a method and an arrangement (10) for detecting the penetration of optical radiation (12) in a sectional area (20) of a protective wall system (18) in which at least one receiver (22) is located. The receiver is connected to an evaluation circuit (24). To recognize the failure of an inner protective wall it is suggested that the outer wall (16) of the protective wall system has a breach (26) for a transmitter/receiver unit (28), consisting of a number of receivers (22) located on the circumferential side of a tubular jacket (30) and a number of transmitters (32) concentrically surrounding the receivers (22) in a circle.

Abstract: The invention relates to a method and an arrangement (10) for detecting the penetration of optical radiation (12) in a sectional area (20) of a protective wall system (18) in which at least one receiver (22) is located. The receiver is connected to an evaluation circuit (24). To recognize the failure of an inner protective wall it is suggested that the outer wall (16) of the protective wall system has a breach (26) for a transmitter/receiver unit (28), consisting of a number of receivers (22) located on the circumferential side of a tubular jacket (30) and a number of transmitters (32) concentrically surrounding the receivers (22) in a circle.