Abstract: This invention relates to a gas sensor arrangement in which one or more gas sensors (4) are placed into rooms for monitoring or measuring gas or vapor concentrations or mixtures, a diffusion body (5) is placed in front of the gas sensors (4), the responsiveness of the gas sensors is impaired by structural design or contamination and/or the gas atmosphere is static. The sensor (4) or sensors (4.1 to 4.n) are placed in, on, or in front of a duct (1) located in the room and thus are within the flow area of said duct (1), and a flow is present in the duct (1) during measuring or monitoring. The duct can be artificially heated using a heater (6) to generate this flow.

Abstract: This invention relates to a gas sensor arrangement in which one or more gas sensors (4) are placed into rooms for monitoring or measuring gas or vapor concentrations or mixtures, a (diffusion body (5) is placed in front of the gas sensors (4), the responsiveness of the gas sensors, is impaired by structural) (design or contamination and/or the gas atmosphere is static. The sensor (4) or sensors (4 l to 4.n) are placed in, on. or in front of a duct (1) located in the room and thus are within the flow area of said duct (1), and a flow is present in the duct (1) during measuring or monitoring.

Abstract: It is necessary to provide a cadence regulator in a gas-pressure operated firing weapon, since a hot firing weapon would otherwise exhibit a cadence unacceptably greater than that of a cold firing weapon. The cadence regulator comprises two concentric tubes interconnected at one end and serving for actuating a temperature-dependent throttling member which regulates the gas-pressure by altering a throttling cross-section of a gas passage. Either only the inner tube is heated, causing it to expand more than the outer tube and to reduce the throttling cross-section, or both tubes are heated and the outer tube has a greater coefficient of expansion such that it expands more than the inner tube and increases the throttling cross-section. In the first case, the supply of gas to a gas piston is throttled and thereby diminished in pressure and in the second case, a discharge opening to the atmosphere is increased, also effectively diminishing the pressure of the supply of gas to the gas piston.