NAGP工頻信號發(fā)生器

NAGP frequency signalgenerator

一、概述

 本儀器采用單片機波形合成發(fā)生器產(chǎn)生高精度，低失真的正弦波電壓，可用于校驗頻率繼電器，同步繼電器等，也可作為低頻變頻電源使用。

 本儀器具有讀數(shù)直觀，，性能穩(wěn)定，操作方便等特點。關(guān)鍵器件采用進口元件，是一種有著較高性能價格比的試驗儀器。

二、基本原理

 工頻信號發(fā)生器，主要由數(shù)字波形發(fā)生部分、功率放大部分、以及中央控制單元等組成。通過前面板控制數(shù)字波形發(fā)生單元產(chǎn)生一個頻率及幅度非常穩(wěn)定的數(shù)字合成的正弦波，然后送到功率放大器進行放大。經(jīng)過輸出切換及短路保護后輸出。中央控制單元則負(fù)責(zé)測量輸出頻率及輸出幅度，并監(jiān)視整個系統(tǒng)的工作狀態(tài)是否正常。

三、技術(shù)指標(biāo)

項目

技術(shù)指標(biāo)及參數(shù)

備注

頻率輸出范圍

1Hz ~ 100Hz

正弦波

波形失真度

0.5%

 

電壓輸出范圍

0 ~ 450V

額定輸出功率

50VA

電壓測量準(zhǔn)確度

±1%±2個字

滿量程

頻率測量準(zhǔn)確度

±0.02%±2個字

電源

220V±10%

工作環(huán)境

環(huán)境溫度:0°～40°

相對濕度:≤80%

 

One. Overview

This instrument usessingle-chip waveform synthesis generator produces high-precision,low distortion sine wave voltage, can be used touency relays, synchronous relays, etc., can also be useduency inverter power supply.

This instrument has areading intuitive, accurate, stable performance, easy to operateand so on. Key components of the use of imported components, is ahigh performance and low cost of the test equipment.

Two. Basic principles

NAGP Frequency signalgenerator, mainly consists ofdigital waveform generation part, power amplifier part, and thecentral control unit and so on. Through the front panel controldigital waveform generation unit produces a very stable fre amplitude of the digital synthesis of sine wave, and then sentto the power amplifier for amplification. Finally, after the outputswitching and short circuit protection output. The central controlunit is responsible for measuring the output frequency and outputamplitude, and monitor the work of the entire system state isnormal.

Three. Technical indicators

Items

Technical indicators andparameters

Remarks

Frequency output range

1Hz ~ 100Hz

Sine wave

Waveform distortion

0.5%

Voltage output range

0 ~ 450V

Rated output power

50VA

Accuracy of voltagemeasurement

±1%±2個字

Full range

Accuracy of Fre

±0.02%±2個字

Supply power

220V±10%

Workingenvironment

Ambient temperature: 0 °~ 40 °

Relative humidity: ≤80%