Abstract: The invention discloses a fabrication method of semiconductor electric heating film at least comprising the steps of: preparing an elementary material from one of the metallic (Sn, V) chlorides or silicides, into which one of the compounds of Fe, Sb, In, Zn or Zr is further added as an anti-oxidation additive, above resultant is used as basic semiconductor electric heating film material having anti-oxidation property; uniformly mixing the aforesaid material, and taking a predetermined ratio of it to solve in a solvent; uniformly churning the resultant prepared in the above step, and adding a small amount of HF non-organic acid as an modifier so as to improve film's stability and causing oxidation or reduction between the solvent and the film material; and cleaning a substrate with supersonic wave and then washing it with pure water in order, after that setting the washed substrate in a furnace and heating the substrate with in-line heating process gradually, and as soon as the substrate's surface has reached

Abstract: A quartz heater tube consists of a tube body whose two ends being respectively sealed with a plug, and each plug is provided with a built-in electrode. The inner cavity of the tube body is filled with an inertia gas after being evacuated, and the inner surface thereof is coated with a layer of electrical film which being electrically in connection with the two electrodes. By this construction, when the quartz heater tube is in operation, the electrical film is able to avoid oxidation owing to protection of the inertia gas which serves to isolate the electrical film from the outside air thereby prolonging the lifespan of the quartz heater tube.

Abstract: Disclosed herein is a heat generating device formed of heat generating diaphragm plates comprises an electrically conducting supporting frame and a plurality of heat generating diaphragm plates. The supporting frame consists of two coupled supporting plates facing against each other with a predetermined spacing, surfaces on the two supporting plates opposite to each other are respectively provided with several insertion slots whose wall surfaces are coated to form electrode terminals such that when the heat generating diaphragm plates are inserted into the insertion slots, an electrical connection is formed among silver solders provided at both terminals of each heat generating diaphragm plate and the electrodes formed on the insertion slots thereby completing a heat generating device capable of adjusting heat generation capacity.

Abstract: A wire-saving optical encoder having servomotor identification information is applied to a wire-saving transmission design to provide a circuit and a method for processing servomotor identification information and encoded feedback control signals. With a microprocessor, a multiplexer and the servomotor identification information stored in the microprocessor, an output device and a driver for the feedback signals of the encoder constitute a wire-saving signal transmitting circuit. The microprocessor and multiplexer switch a signal transmission mode to transmit the servomotor identification information and phase change signal produced by the servomotor control parameters stored in a firmware by a serial output mode, and the same transmitting wire is used to transmit a rotor operating signal after the transmitting mode is switched, so as to save wires and lower costs for transmitting feedback signals and correctly identifying and effectively controlling a servomotor.

Abstract: An optical encoder includes a controller electrically connected to an optical sensor to discriminate displacement information of a glass disc. The controller comprises a pair of analog amplifiers for amplifying quadrature periodical output signals of the optical sensor, a pair of A/D converters electrically connected to the analog amplifiers for digitalizing the output of the analog amplifiers, a pair of hysteresis comparators electrically connected to the optical sensor for performing hysteresis comparison for the output of the optical sensor, an up/down counter electrically connected to the pair of hysteresis comparators for up/down counting the output of the hysteresis comparators and a firmware unit electrically connected to the pair of A/D converters and the up/down counter for performing interpolation for the quadrature periodical output signals and counting for the hysteresis compared signals. Therefore, optical encoded result of higher resolution can be achieved.

Abstract: A far infrared tubular porous ceramic heating element which is suitable for various kinds of catalyst, heater and electric conductor . . . etc. Inside the body, a plurality of via holes is formed, and the crossing portions of the walls of via holes are formed in arc shape so as to prevent breaking and disturbance to heat flow.

Abstract: A porous ceramic carrier includes a main body having an inside provided with a plurality of intersecting separation walls formed with a plurality of through holes, wherein the separation walls have connections each formed with a cylindrical portion. Thus, each of the through holes of the separation walls has smooth corners instead of sharp corners so as to reduce the stress applied on the surface of each of the through holes, thereby preventing the connections of the separation walls from being worn or broken due to a stress concentration.

Abstract: A film heating element includes a substrate, an electrothermal film layer coated on a surface of the substrate and made of a material having a PTC effect, and two electrodes mounted on two opposite sides of the electrothermal film layer and each electrically connected to the electrothermal film layer. Thus, the film heating element has a simplified construction and does not need a temperature control.

Abstract: A heating device includes a substrate added with a functional far infrared material, an electrothermal film layer coated on a surface of the substrate, and two electrodes mounted on two opposite sides of the electrothermal film layer and each electrically connected to the electrothermal film layer. Thus, the electrothermal film layer co-operates with the functional far infrared material contained in the substrate to produce heat by conduction of the two electrodes so as to heat an object to be heated, thereby simplifying the construction of the heating device, and thereby enhancing the heating efficiency of the heating device.