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该扫描机1980年9月出厂,1982年5月安装使用。1985年后该机故障较多,性能不稳定,计数时有时无,时高时低,常有漏计现象。探头运控部分有时跳行,不回行,甚至无法进行扫描。1987年6月对该机进行大修。根据该机的状况,我们把稳压电源、信号通道和探头运控三个部分作为重点,进行大修。一、稳压电源的稳定性直接关系到仪器能否正常工作,这次大修就从稳压电源入手。该机的稳压电源包括高压稳压电源和±5v、±12v、±24v 三组稳
The scanner factory in September 1980, installed in May 1982 to use. After 1985, the aircraft more faults, unstable performance, counting sometimes no, high and low, often missed the phenomenon. Probe control part of the sometimes jumped, not back to the line, or even unable to scan. June 1987 overhaul the aircraft. According to the condition of the aircraft, we put the power supply, signal channel and the probe operation and control of three parts as the focus, overhaul. First, the stability of the power supply is directly related to the instrument can work properly, this overhaul started with the power supply. The machine’s power supply, including high voltage power supply and ± 5v, ± 12v, ± 24v three groups of stable