ND-10/普通声级计ND10
ND-10/普通声级计 ND10 产品介绍
中文介绍
ND-10 普通声级计是一款专业的声学测量仪器，适用于多种环境下的噪声检测。它采用先进的声学传感器技术，能够精准地捕捉声音信号并将其转化为可读的声级数值，测量范围宽广，可满足不同场景的噪声测量需求，无论是工业车间的设备噪声监测，还是城市环境中的交通噪声评估，亦或是建筑施工场地的噪声管控，ND-10 都能提供可靠的数据支持。
该声级计操作简便，配备直观的显示屏，实时显示测量数据，方便用户快速读取。其具备多种测量模式，用户可根据实际测量目的灵活选择，例如可进行快速测量以获取即时噪声水平，也可设置长时间测量以观察噪声的变化趋势。此外，ND-10 还具备数据存储功能，能够存储一定数量的测量数据，方便用户后续进行数据整理和分析，为噪声控制和环境评估提供有力依据。
在设计上，ND-10 注重耐用性和便携性。其外壳采用坚固的材料制成，能够抵御一定程度的碰撞和恶劣环境的影响，确保仪器在长期使用过程中的稳定性和可靠性。同时，轻巧的体积和合理的重量设计，使得用户可以轻松携带，无论是手持测量还是将其安装在特定位置进行固定测量都非常方便。总之，ND-10 普通声级计凭借其精准的测量性能、便捷的操作方式以及可靠的耐用性，是噪声测量领域的一款实用工具，可助力各类企业和机构有效管理和控制噪声污染，营造更加舒适和健康的生活与工作环境。
English Introduction
The ND-10 is a professional sound level meter designed for noise measurement in various environments. It employs advanced acoustic sensor technology to accurately capture sound signals and convert them into readable sound level values. With a wide measurement range, it can meet the noise measurement requirements of different scenarios. Whether it is for monitoring equipment noise in industrial workshops, assessing traffic noise in urban environments, or managing noise at construction sites, the ND-10 provides reliable data support.
The operation of this sound level meter is simple and straightforward. It features an intuitive display that shows real-time measurement data, allowing users to read the values quickly. The device offers multiple measurement modes, enabling users to choose flexibly according to their specific measurement objectives. For example, it can perform quick measurements to obtain immediate noise levels or set up long-term measurements to observe noise trends over time. In addition, the ND-10 has a data storage function that can store a certain amount of measurement data, facilitating subsequent data organization and analysis for noise control and environmental assessment.
In terms of design, the ND-10 focuses on durability and portability. Its housing is made of sturdy materials that can withstand a certain degree of impact and harsh environmental conditions, ensuring the stability and reliability of the instrument during long-term use. At the same time, the compact size and reasonable weight make it easy for users to carry. It is convenient for both handheld measurement and fixed installation in specific locations for measurement purposes. In summary, the ND-10 sound level meter, with its precise measurement performance, convenient operation, and reliable durability, is a practical tool in the field of noise measurement. It can help various enterprises and organizations effectively manage and control noise pollution, creating a more comfortable and healthy living and working environment.
ND10普通声级计
的详细介绍ND-10/普通声级计ND10
ND10普通声级计
一、概述
ND10型声级测试仪是一种袖珍式的声学测量仪器，用来测量噪声的计权声压（简称声级）。仪器使用稳定度较高的测试电容传声器，具有A及C频率计权特性，“快”和“慢”时间计权（电表阻尼）特性和保持大有效值指示功能。仪器性能符合国际电工委员会（IEC）651号声级计标准中对作为一般用途的Ⅱ型声级计的要求，也符合GB3785标准的要求。主要性能接近以往对精密声级计所规定的要求。
ND10型声级测试仪性能稳定，使用简单，价格低廉，携带方便，可以用于环境噪声、机器噪声、车辆噪声、电机噪声等测量，也可用于建筑声学、电声等测量。对于持续时间较短（不小于100毫秒）的噪声及需要测量大有效值声级的场合（如测量行驶中车辆的噪声），ND10型声级测试仪的“保持”功能将是非常有用的，它还能将测量结果在电表上保持住一分钟以上。
二、主要技术性能
声级测量范围：（均以2×10-5Pa为基准）
A声级：40dB—130dB
C声级：55dB—130dB
注：本机噪声应低于测量下限5dB
传声器：使用CH33型电容传声器，自由场响应型，
外径12.7毫米，电容量约20pF
频率范围：31.5Hz～8kHz
频率计权：A、C频率计权网络
量程衰减器分档误差：≤0.5dB
电表刻度：0dB+10dB, 误差≤1dB
-5dB～0dB，误差≤1dB
放大器输出：输出电压（电表满该度时）2V有效值
输出阻抗：约600Ω
小负载阻抗：10kΩ
检波特性：近似有效值
时间计权：“快”和“慢”特性符合IEC651标准对Ⅱ型声级计的要求
保持特性：每分钟衰减不大于2dB
极化电压：28V
校正
声学校正：利用NX6型活塞发生器或ND9型声级校准器
电气校正：利用内部电气校正信号校正放大器灵敏度，准确度±0.5dB
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