14results about "Discharge tube testing" patented technology

The invention provides a method and a device for judging the health state of a switch type power supply protector by monitoring the discharge spectrum state of a gas discharge tube. The method comprises the following steps: judging the working state of the gas discharge tube according to the cavity color of the gas discharge tube; and when the current state of the gas discharge tube is power frequency follow current, recording a frequency parameter and a duration parameter, and when any parameter exceeds a threshold value, determining that the performance of the switch surge protection device is reduced. The method has the advantages that the problem that the health state monitoring accuracy of the switch type surge protection device is not high is solved, the engineering technology of the monitoring method is very economical, and the health state monitoring accuracy of the switch type surge protection device can be improved to 96% from the highest 60% of the traditional technology.

The invention discloses a xenon lamp aging test box, relates to the field of test instruments, and solves the problem that an existing aging test box is difficult to comprehensively test powder assistants.The xenon lamp aging test box comprises a box body and a top box installed on the inner wall of the top of the box body, a plurality of xenon lamp bodies are arranged at the bottom of the top box, and a placement table is installed on the inner wall of the bottom of the box body; a material placing disc is arranged at the top of the placing table; the material dispersing mechanism is used for uniformly dispersing the powder additive in the material placing disc, is mounted on the outer side of the placing table and comprises two scraping brushes which are symmetrically arranged above the placing table; by means of the material dispersing mechanism, the two scraping brushes can do circular motion in the material containing disc, the scraping brushes conduct scraping, brushing and stirring on powder auxiliaries, the problem that illumination is not uniform due to powder accumulation is solved, the accuracy of an aging test is guaranteed, and therefore the effect of improving the accuracy of the aging test is achieved.

A method for evaluating the performance of an X-ray tube, characterized in that the method comprises: Recording arcing events that occurred during use of the X-ray tube; Classifying arc flash events by severity; Generating, based on the classified arc events, a first growth pattern for the occurrence of arc events; and Determining a level of bubbles in the x-ray tube by finding, based on the first growth pattern, a plurality of matching second growth patterns associated with known levels of bubbles in the x-ray tube.

The present invention relates to the technical field of lightning protection circuit detection, and particularly to a method and device for detecting the service life of a gas discharge tube. The present invention repetitively calculates a number of performance loss characterization coefficients corresponding to each working condition time node of the gas discharge tube within a preset operation duration, constructs a change curve of the fitting value of the performance loss characterization coefficient, determines a characteristic working condition time period according to the dispersion of the fitting values of the performance loss characterization coefficients of a number of working condition time nodes in each change curve segment, determines whether the performance of the gas discharge tube is abnormal by connecting a varistor in series with the gas discharge tube and according to the change of the dispersion of the fitting values of the performance loss characterization coefficients within the characteristic working condition time period before and after the varistor is connected. Furthermore, personalized sample data is established based on the influence of environmental factors of the gas discharge tube and the change of the circuit working condition, and a scenario-based operating state analysis is performed to improve the accuracy of detecting the performance life of the gas discharge tube.

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The application relates to a kind of gas discharge lamp detection systems of gas lamp detection technical field, including calibration device and detection device, calibration device includes first dark box, closed chamber formed in first dark box, gas pipeline and vacuum system connected with first dark box, cathode and anode group arranged on first dark box, first high voltage exciter connected with cathode and anode group and arranged outside first dark box, first optical interface arranged on first dark box and first spectrometer arranged outside first dark box;Detection device includes second dark box, installation cavity formed in second dark box, second high voltage exciter for connecting cathode and anode of to-be-measured gas discharge lamp installed in installation cavity and arranged outside second dark box, second optical interface arranged on second dark box and second spectrometer arranged outside second dark box.The gas discharge lamp detection system of the application can efficiently, accurately and easily realize the detection of gas component and gas pressure of gas discharge lamp.

The invention relates to the technical field of gas discharge tube simulation experiments, in particular to an ArNe gas discharge tube in-situ detection synchronous optical observation experiment platform and method. According to the technical scheme, the device comprises a discharge experiment part, an in-situ detection experiment part and a synchronous optical observation part, the discharge experiment part comprises a pulse current generator, a console, a sealed gas discharge tube simulation experiment cavity, a gas pressure sensor, a high-purity inert gas cylinder, a Rogowski coil, a discharge electrode pair, a coaxial cable, a high-voltage differential probe, an oscilloscope, a computer and a protection system; a pulse current generator is connected with a discharge electrode pair of the sealed gas discharge tube simulation experiment cavity through a coaxial cable, and a high-voltage insulation sealing sleeve is arranged around an access port. According to the invention, three detection systems are integrated, excited state particles, ground state atoms and ion components in discharge are monitored in real time, multi-level observation analysis from microscopic atoms to macroscopic plasma scale is realized, and support is provided for discharge mechanism research.

Provided is an electromagnetic wave generation device with which it is possible to determine the cause of an abnormality occurring in the interior thereof.　The present invention comprises: a negative electrode (1); a first positive electrode (2) which is disposed facing the negative electrode and through which electrons can pass; a cylindrical waveguide (3) that is disposed on the side of the first positive electrode opposite from the negative electrode and guides electromagnetic waves; an output window (30) that is disposed at the end portion of the waveguide on the side opposite from the first positive electrode and outputs electromagnetic waves; a first current sensor (41) that detects current data pertaining to an electron beam emitted from the negative electrode; a second current sensor (42) that detects current data pertaining to the electron beam traveling within the waveguide; and an abnormality determination device (60) that determines an internal abnormality on the basis of the current data detected by the first current sensor and the current data detected by the second current sensor.

The present invention relates to a device and method for measuring the electro-optical conversion efficiency of a low-pressure mercury lamp in water. The device includes a low-pressure mercury lamp to be measured, a lamp output probe, a test device for electro-optical conversion efficiency in air, a test device for electro-optical conversion efficiency in water, and a data processing system. The method includes the following steps: obtaining the relationship between the reading of the lamp output probe of the low-pressure mercury lamp to be measured in air and the electro-optical conversion efficiency; obtaining the readings of the lamp output probe of the low-pressure mercury lamp to be measured under different water temperature conditions; and calculating the electro-optical conversion efficiency of the low-pressure mercury lamp to be measured under different water temperature conditions according to the relationship between the reading of the lamp output probe of the low-pressure mercury lamp to be measured in air and the electro-optical conversion efficiency, and the readings of the lamp output probe of the low-pressure mercury lamp to be measured under different water temperature conditions. This method can accurately measure the electro-optical conversion efficiency of a low-pressure mercury lamp under different water temperature conditions, and thus effectively guide the reasonable design, operation and maintenance of ultraviolet disinfection devices. The present invention can be widely applied to the field of environmental protection water treatment technology.

The utility model discloses a novel discharge tube aging machine which is characterized in that the upper end part of a base station is provided with a fixed bracket, the fixed bracket is provided with a lifting driving mechanism, and the driving end of the lifting driving mechanism is provided with an aging discharge mechanism; a fixed supporting plate is fixedly mounted on the upper surface of a top transverse plate of the base table, and a receiving hopper is mounted on the top transverse plate at the rear end side of the fixed supporting plate; a left side transfer plate and a right side transfer plate which move synchronously are installed above the top transverse plate in a front-back horizontal sliding mode, the base table is provided with a transfer driving mechanism, and the transfer driving mechanism is in driving connection with the left side transfer plate and the right side transfer plate. The novel discharge tube aging machine further comprises a discharge tube jig plate, and the discharge tube jig plate is provided with a plurality of discharge tube positioning holes which are distributed in a rectangular array and vertically penetrate through the discharge tube jig plate. During working, the discharge tube jig plate is placed between the left side transfer plate and the right side transfer plate, and the discharge tube jig plate is located over the fixed supporting plate. By means of the structural design, the automatic feeding device has the advantages of being novel in structural design, high in automation degree and high in working efficiency.

The invention relates to the technical field of lightning protection circuit detection, in particular to a circuit design for automatically detecting insulation resistance of a gas discharge tube. According to the system, each relay is connected with the microcontroller to control the on-off of related circuits, so that the function of indirectly selecting circuits by changing potentials is realized, corresponding test voltage is selected according to national standard regulations, the obtained weak current is amplified, and an analog-to-digital converter (ADC) integrated in the microcontroller is adopted to collect test results. Corresponding insulation resistance is calculated through the ohm theorem, and therefore detection is achieved.

The invention relates to the technical field of fault monitoring, in particular to an intelligent fault detection system for a semiconductor discharge tube, which comprises a data acquisition module; the level analysis module is used for determining the fault level of the semiconductor discharge tube according to the fault reference value; the strategy processing module is used for determining a fault processing strategy according to the fault level; the second-stage fault analysis module is used for carrying out fault analysis on the semiconductor discharge tube with the second-stage fault; and the pulse analysis module is used for determining to carry out fault early warning or carrying out early warning analysis according to the loop parasitic inductance according to the flat top voltage fluctuation amplitude of the pulse test and the signal abnormal response value under the condition that the pulse test is completed. According to the invention, the fault detection precision of the semiconductor discharge tube can be improved.

The invention relates to an automatic detection system for direct current breakdown voltage of a gas discharge tube, which comprises a main control circuit, a direct current impulse voltage ramp generation circuit used for generating direct current breakdown voltage of 0V-1000V, a six-path high-voltage dry reed relay circuit, a breakdown voltage detection circuit, and a terminal A, a terminal B and a terminal C which are used for connecting the gas discharge tube, the terminal A, the terminal B and the terminal C are respectively connected with three electrodes of the gas discharge tube, and the terminal C is suspended when the two-electrode gas discharge tube is tested; the second end of the first reed switch and the second end of the second reed switch of the six-way high-voltage reed relay are respectively connected with a terminal A, a terminal B and a terminal C to form six combinations of three electrodes of the gas discharge tube, wherein the three electrodes are sequentially ABACBABCACB pairwise; and the main control circuit is used for automatically switching the terminal A, the terminal B and the terminal C so as to realize automatic detection of the direct-current breakdown voltage of the gas discharge tube. The beneficial effect is that the direct current breakdown voltage between different electrodes of the gas discharge tube is detected without connecting the gas discharge tube to a circuit again.

The invention relates to the technical field of electrical equipment, and discloses a glow discharge anomaly detection method and system, glow discharge equipment and electrical equipment. According to the working characteristics of the resonant circuit in the glow discharge equipment, after the circuit enters a normal state by controlling the two controlled switches to be switched on alternately, zero-crossing voltage signals at the two ends of the resonant capacitor are monitored synchronously, timing is conducted, and the situation that no signal is monitored when timing reaches the preset time serves as an abnormality judgment basis. A complex detection structure is not needed, abnormity can be accurately recognized only by monitoring a zero-crossing voltage signal and timing, and the problem of abnormal discharge caused by air conductivity change or control device damage is solved. The abnormal initial state of discharge can be quickly captured, a timely trigger signal is provided for a subsequent protection action, the loss of the discharge electrode and the resonance circuit caused by abnormal discharge is effectively reduced, and the operation safety and stability of equipment are guaranteed.