Arduino 噪音分貝感測器模組 模擬聲音計/分貝計/噪音計 Gravity: Analog Sound Level Meter

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Arduino 噪音分貝感測器模組 模擬聲音計/分貝計/噪音計 Gravity: Analog Sound Level Meter

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描述

Arduino 噪音分貝感測器模組 模擬聲音計/分貝計/噪音計 Gravity: Analog Sound Level Meter

專為 Arduino 設計的分貝計模組  Arduino 噪音分貝感測器模組 , 在我們生活的環境中,存在著各種各樣的聲音,其中一部分是噪音。隨著人類文明的發展,安靜的環境越來越少,取而代之的是越來越多的噪音。人體如果長時間處於噪音中,會對聽覺產生影響,不利於健康。聲級計(又稱分貝計、噪音計)是最基本的噪聲測量儀器,能夠模擬人耳對聲波反應速度的時間特性,測量周圍環境聲音的大小。

Arduino 噪音分貝感測器模組 模擬聲音計/分貝計/噪音計,即插即用的聲級計模塊,可精確測量周圍環境聲音的大小。該產品採用儀器級電路方案,低噪麥克風,精度高;支持3.3~5.0V寬電壓輸入,0.6~2.6V模擬量輸出,兼容性好;分貝值與輸出電壓為線性關係,轉換簡單,無需複雜的算法;接口即插即用,無需焊接,可方便的應用到現成的系統中。聲級計在環境噪音檢測中有著廣泛的應用,如公路噪音監測站、居室噪音監測等。有了我們這款聲級計模塊,DIY一套環境聲音檢測設備不再有任何難度。

注意事項:

  • 1.麥克風上的黑色薄膜屬於敏感元件,請勿用手指甲或其他尖銳物體觸碰。
  • 2.請勿將板子放在導體或者半導體的表面上,否則會將麥克風管腳短接。推薦將板子放在乾燥的絕緣體表面上,或者用固定柱固定好板子,使其懸空。

技術規格

  • 測量範圍:30dBA~130dBA
  • 測量誤差: ±1.5dB
  • 頻率加權:A加權
  • 頻率響應:31.5Hz~8.5KHz
  • 時間特性:125ms
  • 輸入電壓:3.3~5.0V
  • 輸入電流:22mA@3.3V, 14mA@5.0V
  • 輸出電壓:0.6~2.6V
  • 板子尺寸:60mm*43mm

引腳說明

分貝計

分貝計接口管腳定義
標號名稱功能描述
1A模擬信號輸出端(0.6~2.6V)
2+電源輸入正極(3.3~5.0V)
3電源輸入負極(0V)

技術文件與範例下載

 

感測器回傳 分貝計模組 所感測到的數據

Soundlevelmeterresult.png

Arduino dBA Sound Level Sensor / Gravity: Analog Sound Level Meter

This is an Arduino compatible sound level meter(also known as decibel meter, noise meter). It uses instrument circuit and low noise microphone, which enable it to accurately measure the sound level of the surrounding environment. It can be applied to environmental noise testing, such as highway noise monitoring station, bedroom noise monitoring, etc.Nowadays, there are many kinds of sounds surrounding, some of which are really noisy. It is really essential to measure whether the sound is noisy enough to do damage to our health.


Arduino DIY Decibel Meter

Sound level meter (also known as the decibel meter, noise meter) is a basic noise measurement instrument. We have launched a sound level meter, which is compatible with Arduino, plug-and-play. It can accurately measure the sound level of the surrounding environment. This product uses instrument circuit, low noise microphone, which make it highly precious. It supports 3.3~5.0V wide input voltage, 0.6~2.6V voltage output. The decibel value is linear with the output voltage, which leads to a simple conversion, without complex algorithm. The connector is plug-and-play, without welding, so this product can be easily used in your application.

Sound level meter is widely used in environmental noise detection, such as highway noise monitoring station, room noise monitoring and so on. It’s time for you to DIY a sound level detector to protect your hearing.

Attention:
The black film on the microphone is a sensitive component, do not touch it with fingernails or other sharp objects.
Do not place this module on the surface of the conductor or the semiconductor, otherwise it will short the microphone’s pins. It is recommended to place this module on a dry insulator’s surface or fix with nylon columns to hang in the air.

FEATURES

  • High Precision: use instrument circuit, low noise microphone
  • Wide Voltage Input:3.3~5.0V
  • Simple Conversion: linear analog output, 0.6~2.6V linear correspondence 30~130dBA, no complex algorithm is required
  • Easy to Use: plug and play, without soldering

SPECIFICATION

  • Measuring Range: 30dBA ~ 130dBA
  • Measurement Error: ±1.5dB
  • Frequency Weighted: A Weighted
  • Frequency Response: 31.5Hz ~ 8.5KHz
  • Time Characteristics: 125ms
  • Input Voltage: 3.3 ~ 5.0V
  • Input Current: 22mA@3.3V, 14mA@5.0V
  • Output Voltage: 0.6 ~ 2.6V
  • Module Size: 60mm * 43mm / 2.37in*1.68in

 

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