| 遥测地震仪发射机电路分析及检修 |
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| 引用本文： | 宋太成.遥测地震仪发射机电路分析及检修[J].内陆地震,2002,16(2):165-169. |
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| 作者姓名： | 宋太成 |
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| 作者单位： | 新疆维吾尔自治区地震局,新疆乌鲁木齐,830011 |
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| 摘 要： | 在无线遥测地震仪器中 ,发射机长期使用容易出现输出功率下降、无输出功率、发射频率不准等故障。分析了发射机典型电路——石英晶体主振电路、倍频电路、激励级电路、功率放大级电路的基本原理。排除发射机的故障时 ,先从不同单元电路逐一检查、测试 ,判断故障类型 ,最后进行发射机总调试
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| 关 键 词： | 发射机 典型电路 电路故障 |
| 文章编号： | 1001-8956(2002)02-0165-05 |
| 修稿时间： | 2001年12月10 |
ANALYSIS AND OVERHAUL OF TRANSMITTER CIRCUITOF TELE-RECORDING SEISMOGRAPHS |
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| SONG Tai,cheng.ANALYSIS AND OVERHAUL OF TRANSMITTER CIRCUITOF TELE-RECORDING SEISMOGRAPHS[J].Inland Earthquake,2002,16(2):165-169. |
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| Authors: | SONG Tai cheng |
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| Abstract: | In a radio tele recording seismograph, the transmitter is power output equipment, requiring large operating current. Therefore, after a long time of usage, the transmitter easily produces some failures such as output power failing, without output power, emission frequency being unsatble, etc.. Take the model circuits as example, the author analyzed the basic principle of quartz crystal oscillator circuit, multiple frequency circuit, driving stage circuit and power amplifier satge circuit, and through step by step check and test of different unit circuits and last general adjustment,the failures of the transmitter can be removed. |
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| Keywords: | Transmitter Model circuit Circuit failure |
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