本次设计用单片机芯片AT89s52设计一个数字万用表，能够测量交、直流电压值、直流电流、直流电阻以及电容，四位数码显示。此系统由分流电阻、分压电阻、基准电阻、电容测试芯片电路、51单片机最小系统、显示部分、报警部分、AD转换和控制部分组成。-The design used to design a single chip AT89s52 digital multimeter can measure AC and DC voltage, DC current, DC resistance an

数字电压表：利用模数转换芯片ADC0832实现，输入电压经89k电阻和10k精密电位器分压，测试电压为0～51v，可用表校对-Digital voltmeter: the use of analog to digital conversion chip ADC0832 achieved, the input voltage through 89k and 10k resistors precision potentiometer divider, a test voltage of 0 ~ 51

msp430 f149 薄膜开关 键盘扫描程序 并且液晶12864显示 键值 亲自测试过 可以使用 不过要加上拉电阻-msp430 f149 membrane switch keypad scanner and LCD 12864 display keys personally tested, but can be used to add pull-up resistor

利用PIC内部基准源测试VDD的设计巧妙想法和实现。在极低功耗系统设计中无需外部分压电阻。-PIC internal benchmark testing with source VDD design ideas and implementation. Swim in the extremely low power system design

检波器测试仪程序，LabVIEW中搭建的虚拟测试仪器，能够实现直流击振法测量检波器的直流电阻、阻尼比等参数。（LabVIEW版本2012）-Geophone tester program. A virtual test instruments are built in LabVIEW, for Measurement of DC resistance, damping ratio and other parameters.(LabVIEW version 2012)