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Ⅰ.系统描述这个基本的轻便的DFS—V野外数字系统(无照象机)表示在图1中。它由三个部件和两个联结电缆组成。这三个部件是模拟部件,控制部件和磁带机部件。模拟部件模拟部件接收地震检波器讯号,提供模拟放大、模拟滤波、多路转换和模数转换。一个模拟部件能容纳60个数据道,如图2所示。简单地增加模拟部件,可以增加数字道的总数。每个附加的模拟部件增加的总数为60道,最多可以用四个模拟部件(SEGB格式,1600bpi、240道)。
I. System Description This basic, lightweight DFS-V field digital system (no camera) is shown in Figure 1. It consists of three components and two connecting cables. These three components are analog components, control components and tape drive components. Analog Components Analog components receive geophone signals and provide analog amplification, analog filtering, multiplexing, and analog-to-digital conversion. A simulation unit can accommodate 60 data tracks, as shown in Figure 2. Simply add analog components, you can increase the total number of digital channels. The total number of additional simulations for each additional 60 units, up to four analog components (SEGB format, 1600bpi, 240).