一、南澳電氣NAGP工頻信號發生器概述
南澳電氣NAGP工頻信號發生器采用單片機波形合成發生器產生高精度，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。
具有讀數直觀，精確，性能穩定，操作方便等特點。關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、南澳電氣NAGP工頻信號發生器基本原理
主要由數字波形發生部分、功率放大部分、以及*控制單元等組成。通過前面板控制數字波形發生單元產生一個頻率及幅度非常穩定的數字合成的正弦波，然后送到功率放大器進行放大。zui后經過輸出切換及短路保護后輸出。*控制單元則負責測量輸出頻率及輸出幅度，并監視整個系統的工作狀態是否正常。
三、南澳電氣NAGP工頻信號發生器技術指標
項目 | 技術指標及參數 | 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 | |
電壓測量準確度 | ±1%±2個字 | 滿量程 |
頻率測量準確度 | ±0.02%±2個字 | |
電源 | 220V±10% | |
工作環境 | 環境溫度:0°～40° 相對濕度:≤80% | |
One. Overview
This instrument uses single-chip waveform synthesis generator produces high-precision, low distortion sine wave voltage, can be used to calibrate frequency relays, synchronous relays, etc., can also be used as low-frequency inverter power supply.
This instrument has a reading intuitive, accurate, stable performance, easy to operate and so on. Key components of the use of imported components, is a high performance and low cost of the test equipment.
Two. Basic principles
NAGP Frequency signal generator, mainly consists of digital waveform generation part, power amplifier part, and the central control unit and so on. Through the front panel control digital waveform generation unit produces a very stable frequency and amplitude of the digital synthesis of sine wave, and then sent to the power amplifier for amplification. Finally, after the output switching and short circuit protection output. The central control unit is responsible for measuring the output frequency and output amplitude, and monitor the work of the entire system state is normal.
Three. Technical indicators
Items | Technical indicators and parameters | Remarks |
Frequency output range | 1Hz ~ 100Hz | Sine wave |
Waveform distortion | 0.5% | |
Voltage output range | 0 ~ 450V | |
Rated output power | 50VA | |
Accuracy of voltage measurement | ±1%±2個字 | Full range |
Accuracy of Frequency measurement | ±0.02%±2個字 | |
Supply power | 220V±10% | |
Working environment | Ambient temperature: 0 ° ~ 40 ° Relative humidity: ≤ 80% | |
