Abstract: An actuator device including a magnetic field sensor device and a drive arrangement for performing a drive movement. The drive arrangement has a rotary movement part which includes a first magnetic element and, as part of the drive movement, changes its rotational position relative to the magnetic field sensor device over a rotational position angle range of more than one revolution, and a linear movement part coupled to the rotary movement part, which includes a second magnetic element and performs a linear movement relative to the magnetic field sensor device as part of the drive movement. The magnetic field sensor device is configured to detect the magnetic fields of the first magnetic element and the second magnetic element. The actuator device further includes an evaluation unit which is configured to determine a rotational position of the rotary movement part that is unambiguous with respect to the rotational position angle range.

Abstract: A method and device for determining a piston or wheel position in a pneumatic drive and/or gripper system, comprising a wheel/piston arrangement which has a wheel and a piston coupled to the wheel. The method for determining a piston or wheel position in a pneumatic drive and/or gripper system may have a plurality of steps. In a first step, a defined system stimulus of the pneumatic drive and/or gripper system is triggered. In a further step, a system response of the pneumatic drive and/or gripper system is detected as a reaction to the defined system stimulus. Furthermore, it is provided that a parameter dataset is received. Furthermore, the piston or wheel position is determining by performing a position calculation prescription, on the basis of the detected system response, using the received parameter dataset and a comparison against the periodic, non-unique angle-of-rotation signal.

Abstract: A device and a method are provided for determining chlorine dioxide, especially in the presence of chlorine as a foreign gas. In the device the gas sample is exposed at first to a reagent for removing chlorine and subsequently to an indicator or to an electrochemical cell for the qualitative and/or quantitative determination of chlorine dioxide. The reagent for removing chlorine is or contains cyclohexylsulfamic acid and/or salts thereof. The device, through which flow can take place may be a test tube.

Abstract: A device and a method are provided for determining chlorine dioxide, especially in the presence of chlorine as a foreign gas. In the device the gas sample is exposed at first to a reagent for removing chlorine and subsequently to an indicator or to an electrochemical cell for the qualitative and/or quantitative determination of chlorine dioxide. The reagent for removing chlorine is or contains cyclohexylsulfamic acid and/or salts thereof. The device, through which flow can take place may be a test tube.

Abstract: A device for detecting sulfuryl fluoride, in which the gas specimen to be examined is subjected to pyrolysis with ensuing detection of a pyrolysis product, is to be improved for the sake of achieving a mobile, economical structure. To attain this object, in a preliminary tube (1) for pyrolysis, there is a chemical layer (5) of pyrophoric iron, and as an indicator system for the pyrolysis product, a test tube (2) for hydrogen fluoride is used.

Abstract: A device for detecting sulfuryl fluoride, in which the gas specimen to be examined is subjected to pyrolysis with ensuing detection of a pyrolysis product, is to be improved for the sake of achieving a mobile, economical structure. To attain this object, in a preliminary tube (1) for pyrolysis, there is a chemical layer (5) of pyrophoric iron, and as an indicator system for the pyrolysis product, a test tube (2) for hydrogen fluoride is used.