频率仪

光电式CO2气体保护焊短路过渡频率仪的研制

Photoelectric cymometer of short - circuit transfer for gas shielded arc welding

在压路机驾驶室内的设置频率仪、振幅计和压实度计，可以实现压路机的随机自动检测，操作人员可以随时测定压实效果及确定碾压遍数，从而提高了作业效率和压质量。

The random automatic inspection can be realized by installing frequency meters , amplitude meter and compaction recorder , and so ass to improve the working efficiency and compaction quality .

基于FPGA的多通道压电生物芯片频率检测仪的研制

Development of multi-channel piezoelectric biochip frequency tester based on FPGA technology

基于CPLD的高精度频率测量仪的设计

The Design of High Speed High Accuracy Frequency Measurement Based on CPLD

利用CPLD设计高速等精度频率测量仪

Design of high speed and equal precision cymometer through CPLD

论文完成基于DSP芯片的便携式叶片频率测试仪的硬件电路设计和电路板的制作，并完成对电路板的测试。

The portable blade frequency measurement instrument based on DSP is designed next . The DSP-based circuit board is made and the software program for testing hardware circuit board is coded .

多功能低成本的集成电路／高精度频率测试仪，即IC／F测试仪有许多实际的应用。本文叙述了该测试仪的基本功能、电路原理和测量方法。

This paper has described the basic functions 、 circuit principle and detecting method of IC / F detector , the multi-function detector of IC and frequency which has many practical uses .

FRF-1型鱼类呼吸频率测定仪

Model FRF-1 ( Fish Respiration Frequencies ) Determination Instrument

方法二把差频处理后的传感器信号，送给单片机处理，研制了便携式QCM传感器频率检测仪，实现了传感器信号的采集、存储、液晶显示以及和计算机的串行通信。

Another processing way is to use the microchip to deal with the QCM sensor signals , and achieves sensor signal 's sampling 、 store 、 LCD display and serial communication with computers .

多通道虚拟频率测量仪的设计与实现

Design and Achievement of Multichannel Frequency Meter Based on Virtual Instrument

改装晶体阻抗计为在线频率分选仪

Refitting a general crystal impedance instrument for online crystal frequency selecting

叶片共振频率测试仪的原理与使用

Measuring theory and calibration on resonant frequency instrument of impeller blades

介绍了变闸门频率测量仪的设计方法。

This paper introduces the design of the changeable gate frequency measurement .

某型飞机无线电罗盘频率检测仪的设计

Design of radio compass frequency tester for a certain type of fighter

叶片共振频率测试仪在叶轮维修中的应用探讨

The Applications of Blade Resonant Frequency Measuring Instruments to the Maintenance of Impellers

简易超声波换能器频率测试仪的研究

Studies on the simple frequency detector of ultrasonic transducer

如果存在纯净的欲望，对频率谐振仪重复地曝光会产生移位。

Repeated exposure to frequency resonance can generate shifts if there is sincere desire .

自动频率测量仪电路设计

The circuit design of automatic frequency measurer

牙用振动频率测量仪的研制

Using . The K. Development of an instrument for measuring the natural frequency of teeth

橇装式流量校准装置石英晶体频率校准仪

Quartz crystal calibration equipment

为验证桩身和冠梁计算内力，采用振弦频率接收仪对埋设在桩身内部的110支钢筋应力计和埋设在冠梁内部的18支钢筋计进行试验。

( c ) 110 bar gauges embedded in pile and 18 bar gauges embedded in top beam are tested by vibrating frequency receiver to substantiate the calculated internal force of pile and top beam .

本文从航空部队对无线电罗盘检修时存在的问题出发，讲述了无线电罗盘频率检测仪的基本设计思想、解决问题的途径及软、硬件设计原理。

Beginning with analysis to the problems existed in radio compass checking and repairing , the basic design principles of the radio compass frequency tester , methods of problem solving and design principles of software and hardware are introduced .

研究了由计算机控制的带伺服电机驱动的电子全站仪、高精度温度计、数字气压计、光电测距仪、频率校准仪、数据采集与处理等专用仪器和软件组成的边坡工程变形自动监测系统。

An automatic monitoring system for slope engineering deformation was developed , which consists of computer-controlled motorized electronic total station , high precision thermometer , digital barometer , EDM frequency calibrator , special software for data collection and processing .

声表面波（SAW）压力传感器频率信号检测仪

Frequency Signal Test Set for SAW Pressure Sensor

基于单片机和FPGA的频率特性测试仪

Frequency characteristics test instrument based on MCU and FPGA

基于USB的DDS虚拟频率特性测试仪

DDS Virtual Frequency Characteristic Test Instrument Based on USB

DDS在数字频率特性测试仪中的应用

Application of DDS in digital frequency characteristic testing instrument

新型小调场式微波频率EPR谱仪

A new small magnetic modulation microwave EPR spectrometer

提出了基于USB的DDS虚拟频率特性测试仪的原理和实现方法，介绍了DDS信号发生模块的原理，使用的核心芯片AD9762的功能；

In this paper , the principles and realization of virtual instrument based on DDS and USB for testing the frequency characteristic are introduced .

介绍了DDS的基本原理，并给出了以DDS为基础的用于数字频率特性测试仪中的扫频信号源的设计与实现方法，该设计已通过实验验证并取得了良好的效果。

The basic principle of DDS is introduced , and the design and realization method for sweep singnal source in the digital frequency characteristic testing instrument based on DDS are presented . Experiment has confirmed this design and shown good effects .