Abstract: The invention provides a safety module, which includes a trigger sensor for activating a safety system in the event of an accident operated cooperative engagement with a protective device to prevent improper triggering which comprises a damper mass (7) in or on a housing (1) enclosing the trigger sensor (10) and if the safety module is configured as a belt tensioner, the housing (1) may further include a winding device (4) that is pyrotechnically activated by the trigger sensor (10) in the event of an accident.

Abstract: Compensation and calibration method for a nondispersive infrared gas analyzer which includes an infrared source of radiation, a measuring path, a reference path, modulation devices, a detector for differential pressure measuring, comprises the following steps: first and prior to measurement, the reference gas having a variable basic concentration in the measuring component is forced through the reference branch and through the measuring branch and the detector is set to a zero position; next a dual calibration chamber is placed into the two reference paths while both of them are still passed through by the reference gas, one of the calibration chambers including a particular concentration in the measuring gas the other one lacking that measuring gas; now the sensitivity and amplification of the detector that obtains as a result of changes in the radiation on account of placing the calibration chamber into the reference and measuring path is adjusted, whereupon the calibration chamber is removed, reference gas

Abstract: A photometer includes a radiation source, a measuring chamber and a receiver, all arranged in a casing and through coupling-decoupling members definite temperature gradients are produced between the measuring chamber and the receiver-transmitter and other gradients through appropriate coupling members are established towards the cooled housing.