基于虚拟仪器技术的噪声计设计  

Design of Noise Meter Based on Virtual Instrument Technology

作　　者：陈永辉 苏力 冯靖 丁恒 Chen Yonghui;Su Li;Feng Jing;Ding Heng(School of Electronic Engineering,Xi’an Aeronautical University,Xi’an Shaanxi 710077,China)

机构地区：[1]西安航空学院电子工程学院,陕西西安710077

出　　处：《山西电子技术》2022年第6期9-11,18,共4页Shanxi Electronic Technology

基　　金：陕西省2021年省级大学生创新训练项目(S202111736035)。

摘　　要：本系统采用了驻极体式声音传感器作为主要检测器件,检测外部环境声音信号,经声音传感器转换为模拟信号并输送,利用NI USB-6001数据采集卡将输入的模拟信号转换为数字信号,上位机采用LabVIEW软件,利用软件设计,构建采集结果的显示界面。系统能够完成外部环境噪声的采集,将30~120dB范围内的声源进行实时的噪声判断并根据设定的噪声标准,进行实时报警功能。系统具备采集、转换、调制、放大、判断以及显示等功能,同时还可以达到一定的用户自主调控功能。The system uses the electret sound sensor as the main detection device to detect the external environment sound signal,which is converted into analog signal and transmitted by the sound sensor.The input analog signal is converted into digital signal by Ni usb-6001 data acquisition card.The upper computer adopts LabVIEW software and uses software design to build the display interface of acquisition results.The system can complete the collection of external environmental noise,judge the noise source within 30~120dB in real time,and carry out real-time alarm function according to the set noise standard.The system has the functions of acquisition,conversion,modulation,amplification,judgment and display.At the same time,it can also achieve a certain user independent regulation function.

关 键 词：噪声检测 驻极体电容式声音传感器 LabVIEW NI USB-6001数据采集卡 

分 类 号：TP274.5[自动化与计算机技术—检测技术与自动化装置]