论文部分内容阅读
回放仪的校正过程原理 T_0-Δt曲线及T-Δt曲线我们认为江汉出版的《多次复盖方法》第36页的有关提法是错误的。它认为回放仪是按照T-Δt曲线“这个原理进行校正的”,而实际上回放仪动校正过程是T_0-Δt曲线原理。为了把这个问题搞清,我们试描述一下仪器的动校正过程: 在某一时刻T_0,小活动磁头在伺服系统的带领下向前移动一个Δt,将提前已转录在延迟鼓的(原野外带的)T_0+ΔT=T的信号拾取出来,这时笔尖(经过回放系统)
Correction Process Principle of Playback Instrument T_0-Δt Curve and T-Δt Curve We think the relevant formulation on page 36 of Jiang Hui’s “Multiple Cover Methods” is wrong. It thinks that the playback device is calibrated according to the T-Δt curve "principle. Actually, the dynamic calibration of the playback device is the principle of T_0-Δt curve. To clarify this problem, let us describe the dynamic calibration of the instrument: At a certain moment T 0, the small moving head moves forward by Δt under the servo system, which will be transcribed earlier in the delay drum ) T_0 + ΔT = T signal picked up, then nib (after the playback system)