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声波测井面板(1656)用来配合1603声波测井仪进行声波速度测井和声波幅度测井。面板中包括声波信号测量电路以及向井下仪器提供发射逻辑和接收逻辑的控制电路。图23—1是声波测井面板的外形。一、声速测井信号流程声速测井仪的方框如图集中的附图23—1所示。1、井下仪器发射、接收逻辑的产生供到井下的发射逻辑和接收逻辑是由60赫的电源电压转换而来的。60赫电源电压经过方波发生器和分频器转变为20赫的方波。这一方波经过频率转换开关 SW2输出。SW2
Acoustic Logging Panel (1656) Used with the 1603 sonic logging tool for acoustic velocity logging and sonic amplitude logging. Panels include sonic signal measurement circuitry and control circuitry to provide downhole instruments with transmit logic and receive logic. Figure 23-1 shows the appearance of the acoustic logging panel. First, the sound velocity logging signal sound velocity logging tool box shown in Figure 23-1. 1, downhole equipment launch, receive logic to produce downhole launch logic and receive logic is 60 Hz from the power supply voltage conversion. The 60 Hz supply voltage is converted to a 20 Hz square wave by a square wave generator and divider. This square wave is output through frequency switch SW2. SW2