Abstract: Disclosed is a static eliminator having an offset voltage reducing structure capable of improving antistatic performance for a charged body by reducing an ion offset voltage. The present static eliminator comprises a static eliminator body having an air passage through which high-pressure air is supplied, a plurality of discharge structures installed at the lower end of the static eliminator body to supply the high-pressure air passing through the air passage, and generating positive/negative ions by discharging using the applied high voltage, and an offset voltage reduction unit having a plurality of openings formed to allow the positive/negative ions and high-pressure air to pass therethrough, and installed to cover at least some of the plurality of discharge structures.

Abstract: Disclosed is a static eliminator having an offset voltage reducing structure capable of improving antistatic performance for a charged body by reducing an ion offset voltage. The present static eliminator comprises a static eliminator body having an air passage through which high-pressure air is supplied, a plurality of discharge structures installed at the lower end of the static eliminator body to supply the high-pressure air passing through the air passage, and generating positive/negative ions by discharging using the applied high voltage, and an offset voltage reduction unit having a plurality of openings formed to allow the positive/negative ions and high-pressure air to pass therethrough, and installed to cover at least some of the plurality of discharge structures.

Abstract: Disclosed are a displacement sensor-combined electrostatic measurement potential sensor, and an operation method therefor, wherein a displacement sensor and an electrostatic measurement potential sensor are provided in one device, and operations thereof are linked; a distance to an electrified body measured by the displacement sensor is stored in a main controller to automatically correct a measurement value of the amount of static electricity obtained by the potential sensor; a change in capacitance that the displacement sensor affects with respect to the potential sensor is applied to correction of an error in a result value measured by the potential sensor, so that it is possible to solve the problem of malfunction according to detection of the electrified body, wherein the distance thereto is changed, and accurately measure the potential; and by manufacturing the device in a small size, easy use is achieved and manufacturing and installation costs are reduced.

Abstract: Disclosed are a displacement sensor-combined electrostatic measurement potential sensor, and an operation method therefor, wherein a displacement sensor and an electrostatic measurement potential sensor are provided in one device, and operations thereof are linked; a distance to an electrified body measured by the displacement sensor is stored in a main controller to automatically correct a measurement value of the amount of static electricity obtained by the potential sensor; a change in capacitance that the displacement sensor affects with respect to the potential sensor is applied to correction of an error in a result value measured by the potential sensor, so that it is possible to solve the problem of malfunction according to detection of the electrified body, wherein the distance thereto is changed, and accurately measure the potential; and by manufacturing the device in a small size, easy use is achieved and manufacturing and installation costs are reduced.

Abstract: Disclosed is a filtering device for removing fine dust, the filtering device comprising: a charger including a case having one side, through which fine dust is introduced, a plurality of beam electrodes inserted into the case and spaced apart from each other along a depth direction of the case, line electrodes arranged inside the case and spaced apart from the plurality of beam electrodes, respectively, and a dust collector including a first dust collecting electrode to which a first dust collecting voltage is applied, a second dust collecting electrode to which a second dust collecting voltage is applied to generate a voltage difference with the first dust collecting electrode and a dielectric spacer disposed between the first dust collecting electrode and the second dust collecting electrode to space the first dust collecting electrode and the second dust collecting electrode apart from each other and to serve as a dielectric.

Abstract: Disclosed is a charge plate monitor for eliminating a stray capacitor in a relay switch by using a voltage feedback method, and an operation method thereof. The charge plate monitor includes: a measurement plate unit including a conductive plate, a ground surface, and an insulator provided between the conductive plate and the ground surface; a noncontact electrometer provided between the conductive plate and the ground surface of the measurement plate unit and detecting an electrical potential of the conductive plate; a measurement unit reading or passing the electrical potential of the conductive plate detected by the noncontact electrometer; and a voltage feedback circuit unit that feeds the electrical potential of the conductive plate passed by the measurement unit back, and applying the electrical potential to a terminal of a relay switch terminal.

Abstract: Disclosed is a charge plate monitor for eliminating a stray capacitor in a relay switch by using a voltage feedback method, and an operation method thereof. The charge plate monitor includes: a measurement plate unit including a conductive plate, a ground surface, and an insulator provided between the conductive plate and the ground surface; a noncontact electrometer provided between the conductive plate and the ground surface of the measurement plate unit and detecting an electrical potential of the conductive plate; a measurement unit reading or passing the electrical potential of the conductive plate detected by the noncontact electrometer; and a voltage feedback circuit unit that feeds the electrical potential of the conductive plate passed by the measurement unit back, and applying the electrical potential to a terminal of a relay switch terminal.

Abstract: The present invention provides a dielectric material for temperature compensation of Chemical Formula 1 and a method of preparing the same. (Ba1-a-b-3c/2SraMgbLac)(Ti1-xSnx)O3 ??Chemical Formula 1 In the above Chemical Formula 1, a is 0?a<0.20; b is 0<b <0.05; c is 0<c<0.01; and x is 0<x<0.20 as defined in the detailed description.

Abstract: A piezo ceramic transformer working at a full wave length mode, &lgr;-mode, in accordance with the present invention has a driving region divided into two sections in the center and two generating regions at the end regions of a thin rectangular bar. Two input sections are built into multi-layered structure with multiple internal-electrodes and poled along the thickness direction with polarization in the neighboring layers opposite to each other. Alternating internal electrodes are connected in parallel through two external electrodes in each input section. Polarization in the same layer of two input sections are disposed in the same direction, and two external electrodes of two input sections in the same side of driving region are connected 180 degree out of phase to each other to a driving circuit. Two CCFLs are connected directly to two output electrodes at the end of the piezo ceramic transformer, respectively.

Abstract: A piezoceramic converter for high power applications is built with a piezoceramic transformer and a pulse-synchronized electronic feedback circuit. The piezoceramic transformer is designed in the form of a square or circular piezo plate, polarized in thickness direction and excited in contour extensional mode in order to handle high power. A pulse-synchronized electronic feedback circuit is incorporated to stabilize output voltage and current under varying loading conditions. Frequency programming elements, a resistor and a capacitor are built into the control circuit to set an operating frequency of the piezoceramic transformer.

Abstract: A compact AC filter having a plug connection assembly including a support wall from which extends in a forward direction a ground terminal and a pair of power terminals and in a rearward direction a ground tab connected to the ground terminal. A filter assembly housing having a recess and a cavity is attached to the plug connector assembly and contains filter components including at least one capacitor, an inductor in said recess and an earth (ground) inducter in said cavity. A shield member bridges the connector assembly and filter assembly housing and the ground tab extends into the filter housing. The ends of the earth inducter coil are respectively connected to the shield member and the ground tab.