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DZ—664型回放仪,用35厘米宽的照象纸,慢档可回放4张磁带记录,所放时间剖面,道距太大,浪费照象纸。利用快档可回放10张磁带记录,但道距太小,所放出的时间剖面不清晰。地震四大队回放组的同志,为了提高时间剖面的质量,对 DZ—664型回放仪光盒移动系统进行改革,加大电磁离合器上的皮带轮直径,由原来23毫米加大至40毫米,经改革后,每张照象纸可回放6张磁带记录,放出的时间剖面清晰美观,并提高了功效,降低了成本。
DZ-664-type playback device, with 35 cm wide photographic paper, slow file can be reproduced four tape records, the release time profile, the road is too large, waste of photographic paper. The use of fast file can be reproduced 10 tape records, but the track is too small, the release of the time profile is not clear. In order to improve the quality of the time profile, the comrades of the Earthquakes Fourth Battalion Replacing Group conducted a reform on the movement system of the light box of the DZ-664 type playback apparatus and increased the diameter of the pulleys on the electromagnetic clutch from 23 mm to 40 mm. After the reform After each photographic paper can play back 6 tape records, release the time profile clear and beautiful, and improve efficiency and reduce costs.