Method and apparatus for detecting gaseous impurities in accordance with changes in spark breakdown potential caused thereby
专利汇可以提供Method and apparatus for detecting gaseous impurities in accordance with changes in spark breakdown potential caused thereby专利检索，专利查询，专利分析的服务。并且A LOW INTENSITY SPARK DISCHARGE IS PERIODICALLY IGNITED AND EXTINGUISHED IN A GIVEN ATMOSPHERE BY APPLYING VOLTAGE PULSES ACROSS ONE OR MORE PAIRS OF ELECTRODES DISPOSED IN THE GIVEN ATMOSPHERE, WHICH PULSES HAVE AMPLITUDES SUFFICIENT TO CAUSE A LOW INTENSITY SPARK DISCHARGE TO OCCUR ACROSS ONE OF THE PAIRS OF ELECTRODES IN THE PRESENCE OF SUBSTANTIALLY ALL CONCENTRATIONS IN THE GIVEN ATMOSPHERE OF GASEOUS IMPURITIES TO BE DETECTED. A DETECTOR DETECTS CHANGES IN THE MAXIMUM ELECTRODE VOLTAGE OCCURING DURING THE LOW INTENSITY SPARK DISCHARGES FROM THE MAXIMUM ELECTRODE VOLTAGE IN THE ABSENCE OF GASEOUS IMPURITIES, WHICH CHANGES CORRESPOND TO THE PRESENCE OF GASEOUS IMPURITIES IN THE GIVEN ATMOSPHERE. IN ONE PREFERRED EMBODIMENT OF THE INVENTION, THE DETECTOR INCLUDES A VOLTAGESENSITIVE SWITCH ACTUABLE BY A CHANGE OF MORE THAN A PREDETERMINED MAGNITUDE IN THE MAXIMUM ELECTRODE VOLTAGE FROM ITS VALUE IN THE ABSENCE OF GASEOUS IMPURITIES. IN ANOTHER EMBODIMENT, THE DETECTOR INCLUDES A PEAK-READING VOLTMETER, ENABLING THE IMPURITY CONCENTRATION TO BE READ DIRECTLY. IN A FURTHER EMBODIMENT OF THE INVENTION, CHANGES IN THE MAXIMUM ELECTRODE VOLTAGE ARE CONVERTED INTO VARIATIONS IN THE FREQUENCY OF THE VOLTAGE PULSES APPLIED TO THE ELECTRODES, WHICH FREQUENCY VARIATIONS ARE USED TO INDICATE THE PRESENCE OF IMPURITIES. IN A FURTHER ENBODIMENT, TWO PAIRS OF ELECTRODES ARE PROVIDED AND A CHANGE IN THE MAXIMUM ELECTRODE VOLTAGE IS DETECTED BY THE TRANSFER OF THE DISCHARGE FROM ONE ELECTRODE PAIR TO THE OTHER.，下面是Method and apparatus for detecting gaseous impurities in accordance with changes in spark breakdown potential caused thereby专利的具体信息内容。
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