用VC4.0编写的动态连接库（DLL），采用多线程技术，从PC－582接口卡上采集模拟信号，并传给用VB6.0编写的主程序。C文件还采用了滤波机制。-prepared using Win95 Dynamic Link Library (DLL), the multi-threading technology, from the PC- 582 interface card on the analog signal acquisition and preparation of transmission VB6.0 the main program. C document also adopted a filtering mechanism.