It takes the single chip microcomputer AT89C51 as the control nucleus, uses digit controlled current to control running of weighbeam, adopts infrared technology to check the balance of weighbeam.

• 测量仪以单片机AT89C51为控制核心，使用数控电流源控制秤杆的转动，采用红外监控技术检测秤杆的平衡位置。