【摘要】 ACEL交流电致发光屏特性参数的测量,对研究其发光机理、选择最佳工作条件及其分类等均具有重要意义。作者根据RLC串联谐振回路的基本原理,提出谐振法测试方案。测试结果表明,该方法原理简明、操作方便、结果稳定可靠。可同时给出ACEL器件的功耗P_EL、等效电容C_EL,串联等效电阻rE L、并联等效电阻rE L及损耗角δ等表征发光屏特性的重要参数。更多还原

【Abstract】 The measurement of parameters of ACEL panel are indispensable in the study of pattel mechanism, panel classification and optimizing operationeon -ditions. The author suggests the resonance method which is based ucon the principle of resonance in RLC series circuits.The resonance method is as follows. Putting the inductor and ACEL panel in series, supplying the circuit with voltage of certain frequency, and then changing its inductance and voltage to make the circuit resonant (inductive reactance (WWWWWWWWWWWWWL) in the circuit is just enough to offset the panel capa-citive reactance (1/WWWWWWWWWC)), the parameters of ACEL panel can be measured.They are:1. Power consumption (PEL);2. Equivalent capacitance (CBL);3. Equivalent series resistance (rBL);4. Equivalent parallel resistance (r’EL);5. Loss angle (8888888888). Experiments show that the resonance method is. sample and reliable.Besides , as the voltage across the panel is Q times the voltage of the power supply,an ordinary signal generator of audio frequency can be used.In practice, with the resonance principle, a high voltage panel can work with a lower voltage power supply.The power factor will be raised, the size of the power supply will be reduced and the cost will be cut down.更多还原