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温升测试
- 电机温升测试系统,适用于工作频率为50/60Hz的单/三相小功率异步电机(≤5KW)、串级电机、电动工具的绕组温升测量。适用于工作频率为50/60Hz的电源变压器、充电器、电感镇流器的绕组温升测量。带电原理:在带电工作情况下测量绕组的直流电阻,并用公式折算成温升。专为电动工具定子,转子温升测量而开发,其中定子采用带电法,转子采用断电法-motor temperature test system is applicable to the frequency of 50/60Hz single /
用单片机设计频率计
- 单片机为控制器件的,一个小巧的频率测试器。用c语言编写,用过验证和实际实践。-microcontroller for the control device, a compact frequency device. C language with the preparation, certification and used actual practice.
PowerVolt
- 用C51单片机测试模块,应用ADS1110转换芯片,扩展两片8255,32路AD通道,16k路DO,16路DI,正弦信号发生,RS232接口,(0~100MHz频率测试等功能),非常实用!-test with C51 microcontroller module, application ADS1110 conversion chip, the two 8255 expansion. AD 32 Road Corridor, 16k road DO, DI Road 16, sinusoidal
PC1490
- 用C51单片机做的防盗报警器测试程序,主要实现AC/DC电压测试,频率测试,电流测试,正弦信号发生,数字IN/OUT等功能!-C51 microcontroller do with the anti-theft alarm testing procedures, main AC / DC voltage testing frequency of testing, current tests, sinusoidal signal, digital IN / OUT function!
频率测试
- 利用单片机测频率-frequency measurement using SCM
CPU频率测试
- CPU频率计算工具 可以计算频率底于2G的CPU的工作频率-CPU frequency calculation tools can calculate the frequency at the end of the 2G CPU frequency
FreqTest.rar
- 使用单片机AT89C51和1602字符液晶实现对信号频率的测试和显示(内含1602液晶显示、频率测试、和测频率的时序原理图,以及整个电路的原理图,外加整个电路的仿真文件),AT89C51 and 1602 the use of single-chip LCD characters realize the test signal frequency and displays (including liquid crystal display 1602, the frequency of testi
TestingFrequency
- (1)频率测试功能:测频范围0.1H~200H。 测试精度:恒为百万分之一。 (2)脉宽测试功能:范围0.1us~1s,精度0.01us。 (3)占空比测试功能。-(1) the frequency of test functions: the scope of testing frequency 0.1H ~ 200H. Test accuracy: Constant for the parts per million. (2) pulse-width test functions
vhdl
- 基于FPGA的等精度频率计 频率测试功能:测量范围1Hz~20MHz。测频精度:测频全域相对误差恒为万分之一基于FPGA的等精度频率计-based on FPGA precision frequency meter
微机控制的频率测试仪
- 通过8253和8255两个芯片来测试频率,最后测出来的频率误差在1hz到2hz之间,详细情况请见源代码。(Through 8253 and 8255, two chips to test the frequency, and finally measured frequency error between 1Hz to 2Hz, in detail, see the source code.)
8位数字显示的简易频率计
- (1)能够测试10HZ~10MHZ的方波信号; (2)电路输入的基准时钟为1HZ,要求测量值以8421BCD码形式输出; (3)系统有复位键; (4)采用分层次分模块的方法,用Verilog HDL进行设计,并对各个模块写出测试代码; (5)具体参照说明文档(包含源代码,仿真图,测试波形,详细的设计说明)(A square wave signal capable of testing 10HZ~10MHZ; (2) the reference clock input by the ci
频率测试程序
- 计算方波信号的频率5Hz到500KHz可测,需要的可以下载(The frequency of the calculated square wave signal is 5Hz to 500KHz, which can be downloaded)
频率测试程序
- 测量频率,精度很高,可以测量高频,STM程序,调试成功了。很好用的(Frequency measurement, high accuracy, you can measure high frequency, STM procedures, debugging success. It works well)
140-外部频率测试
- 140-外部频率测试(140- external frequency test)
数字闭环光纤陀螺频率特性分析与测试
- 系统的闭环带宽严重影响光纤陀螺在振动、急转弯等环境条件下的测试精度,闭环光纤陀螺的实际带宽高达几kHz,无法采用一般的角振动台进行全频带频率特性测试,因此,频率特性的分析与测试成为了闭环光纤陀螺研究的一项重要内容。针对这种需求,根据系统的结构框图及工作原理,建立了数字闭环光纤陀螺的动态模型,推导出了系统的传递函数;在此基础上对数字闭环光纤陀螺的频率特性进行了分析,指出了改善系统 动态特性的方法.(The closed loop bandwidth of the system seriously
PC并口开发的可编程频率发生器源代码
- PC并口也就是打印口,利用vc++环境开发的一款可编程频率发生器,可用于频率测试,实用型很高,源代码经过测试。。。(PC parallel port is also print, using vc + + environment to develop a programmable frequency generator that can be used for frequency test, the practical high, source code, after testing...)
基于FPGA的频率测试
- 基于FPGA方波频率测试仪,使用VHDL语言(Frequency tester based on FPGA square wave,Using the VHDL language)
STM32频率测试程序
- stm32通过定时器捕获模式测量信号频率并通过LCD屏幕显示(STM32 measurement of signal frequency)
AD9833 STM32 测试程序
- 运用AD9833芯片实现不同频率正弦波、三角波、方波的的产生,误差在0.1%。(Using AD9833 chip to generate sine wave, triangle wave and square wave with different frequencies, the error is 0.1%)
第七届国赛 电压频率采集设备
- 第7届电压频率采集设备,程序齐全,直接上电就可以测试!!!(The 7th voltage and frequency acquisition equipment, complete procedures, can be tested directly on the power)