Abstract: A device provides for time-controlled self-destruction of a projectile by a batteryless, electronic self-destruct device. Several capacitors charged by a piezo element or a surge generator during firing are used in the flight phase for operational purposes. At least two of the capacitors are connected to the input of a comparator, so that the influence of a constantly modifiable operational voltage and the influence of a discharge of modifiable voltage levels by the piezo element or surge generator does not affect the time function.

Abstract: A device supplies electric energy for projectile detonators without a battery or additional energy generation during flight of the projectile. For operating the projectile detonator in the flight phase, a supply capacitor charged during an inductive programming phase is disposed. The capacitor has a very low leakage current in order to bridge a time in the range of minutes between the programming and the start of the flight phase without significant energy loss. The charging of the supply capacitor takes place through halfwaves, of a programming AC voltage not utilized in the programming and not under load.

Abstract: The invention relates to a mixing valve with at least two inlets and at least one outlet. A control element is configured as a pump wheel controls the fluid connection between the inlets and the outlets. The pump wheel is connected to a hollow shaft which is rotated by an electric motor and axially displaced through selective actuation of axially displaced stator segments. In a fist axial position of the pump wheel, a first inlet is communicated with the outlet and a second inlet is shut off, and in a second axial position the second inlet is communicated with the outlet and the first inlet is shut off. In a third an intermediate axial position, the two inlets communicate with the outlet allowing fluid mixing within a pump chamber. In a further embodiment of the device, the pump wheel includes a rotatable member to impel fluid through the pump chamber and the outlet. The device unites the mixing valve and the circulation pump in one fitting.

Abstract: The invention aims to increase the overflight safety of a projectile, comprising a time-fuse which has an acceleration-activated battery. To this end, the safety device actuates a switch, whose position is interrogated during the flight phase and the fuse function is deactivated, if the switch is not in the correct position.

Abstract: A thermostatic mixing valve having an inlet valve closure sleeve whose position relative to cold and hot water inlet valve seats is controlled by a temperature sensitive expansion element located in a mixing chamber. The closure sleeve is formed with a center body defining an annular gap through which water from the cold water inlet is channeled onto a baffle surface at the entrance to the mixing chamber. Water from the hot water inlet is also directed onto the baffle surface for turbulent mixing with water from the cold water inlet.

Abstract: In order to measure the roughness of the surface of a material, in particular of a paper web, the surface of the material is illuminated with a parallel bundle of light beams and the scattering ellipse of the reflected light is evaluated. According to the invention, on optically rough surfaces the evaluation with respect to the scattering ellipse is done in a direction deviating from the major axis of the scattering ellipse.

Abstract: A double-acting electropneumatic positioner for controlling an actuator, the actuator having a first and second chamber, comprises a single-acting electropneumatic positioner which provides an output pneumatic pressure to the first chamber of the actuator. A pressure inverter, coupled to the single-acting electropneumatic positioner, inverts the output pneumatic pressure. The inverted output pneumatic pressure is then coupled to the second chamber of the actuator.

Abstract: To effect the adjustment, the expansion valve is first set for a basic coolant (R.sub.o) to a substantially constant static overheating temperature (.DELTA.t.sub.oh) in a predetermined working range of the evaporator temperature and, when the coolant circuit is filled with a replacement coolant (R.sub.1, R.sub.2) differing from the basic coolant (R.sub.o), the pretension of its adjusting spring (46) is adjusted in accordance with a specification suited to the difference between the vapor pressure curves of the replacement coolant and those of the basic coolant.

Abstract: A filter assembly has a cylindrical filter element immersed in the fluid to be filtered, and which fluid normally flows radially inwards through the filter element and is thereby filtered. When the filter element is to be cleaned by backflushing, fluid flowing inwardly through the filter element is impelled by a rotating pump vane which directs fluid within the filter element outwardly at relatively high through the filter element thereby dislodging debris which may have adhered to the exterior of the filter element.

Abstract: An apparatus evaluates measuring values from a laminar material, wherein the laminar material is moving in a single plane in a predetermined direction, the laminar material being moved also being under test. The apparatus comprises a measuring platform which is being moved traverse to a direction of movement of the laminar material. Further, the measuring platform is tiltable about an axis which is normal to a plane of the laminar material, an angle of tilt (a) being determined by a traversing velocity (v.sub.t) of the measuring platform and velocity (v.sub.b) of the predetermined direction of the laminar material. A plurality of separated sensors and radiation emitters are mounted on the measuring platform, and in conjunction with the angle of tilt cause, the measuring valves acquired from the different sensors to be from the same measuring spot of the laminar material.

Abstract: A method for the automatic optimization of the heating curve of a heating controller in a heating plant is devised, whereat the heating curve is approximated by the potential function y=k.multidot.x.sup..alpha., in which function the coefficient k as well as the exponent .alpha. is evaluated in a simple manner. Furthermore, the influence of external energy may be taken into account.

Abstract: A capacitive humidity sensor circuit in which a one-shot circuit produces pulses having a pulse duration determined by the capacitance of a capacitive sensing element, the one-shot circuit being triggered by the trailing edges of pulses in a pulse train produced by a multivibrator. The multivibrator is adjustable to produce a pulse train of variable repetition rate independent of the value of the measured parameter. The pulses produced by the one-shot circuit are integrated to produce a voltage indicative of the time average value of the pulses, the voltage being supplied to an amplification and offset compensation circuit whose output signal is used to adjust the supply voltage to the multivibrator so as to effectively achieve compensation for nonlinear response of the capacitive sensing element to increasing relative humidity.