sound level

Study on testing L_ ( eq) function of the sound level meter with step wave method

阶梯波法测试声级计L（eq）功能的研究

Methods: According to our national noise monitoring specification of industry organization, noise monitoring was performed by using a precise sound level meter in 6 subordinate plants of a steel iron plant.

方法：采用2230型精密声级计，参照《工业企业噪声检测规范》对某钢铁厂6个分厂的噪声点进行了监测。

Remote Measurement and Control System of Sound Level Meter Based on Embedded Web Server

基于嵌入式Web的远程声级计测控系统

Conclusion Dosimeter can be used to dynamically measure the real individual exposure level of noise for textile workers, the results measured by dosimeter may be equal or higher than those by traditional sound pressure levels using sound level meter.

结论噪声个体计量仪可以连续动态记录挡车工的实际噪声暴露，其结果高于或等于声级计定点测量结果。

Sound level meter ( SLM), which is the basic acoustics instrument, has been widely used for measuring sound level.

声级计是测量声压级的仪器，也是声学的基本仪器之一，被广泛的应用在各行各业。

Evaluation, analysis and control index are mainly based on the dB value of sound level meter.

而且噪音的评价分析和控制指标也多基于声级计的分贝数大小。

The effect of the sampling frequency on the time averaging characteristics of integrating sound level meter

采样频率对积分声级计时间平均特性影响的研究

In the other hand, noise information tested with sound level meter is passed through interface RS-232 to computers.

而噪声则通过声级计由RS-232传入计算机。

According to basic values of ISO standard evaluation of audiometric environment noise by using A-weighted sound level meter is proposed. Different audiometric contents and various frequency ranges are analyzed.

根据ISO标准的基本数值，提出了用A-计权声级评价测听环境允许噪声，分析了不同测听内容和各种测听频率范围的噪声特征。

The Design and Research of the Engine of Digital Sound Level Meter

数字声级计（DSLM）引擎设计与研究

Secondly, experiments were made to analyze the effect of the wheel damper, we used the system composed of a self-made pendulum, three acceleration sensors, a four-channel charge amplifier, a sound level meter, a signal collection analyzer and the DASP software.

其次，对车轮阻尼器的降噪效果进行实验分析。实验采用激振单摆、加速度传感器、电荷放大器、声级计、智能信号采集处理分析仪以及DASP软件组成的测试系统。

According to JJG 188-2002 Verification Regulation of Sound Level Meters, the automatic measurement system of sound level meter is carried out. This system is built on the PULSE Multi-analyzer System Type 3560C.

根据《JJG188&2002声级计检定规程》的要求，研制了一套基于Pulse3560C多分析仪的声级计自动检定测试系统；

Therefore the experiments provide an example to validate the hypothesis that the binaural masking effect is the result of the high level auditory system processing binaural sound signal, and it also hints that by using stereophonic, reproduction speech intelligibility can be improved in communication systems.

因此文中的实验为双耳掩蔽是听觉系统的高层对双耳信号处理这假设提供了例证，并提示通信系统采用立体声作可提高重发语言清晰度。

Mean fully developed braking deceleration MFDD Integrating-averaging sound level meters

充分发出的平均减速度GB/T17181-1997积分平均声级计

Design ang Analysis of Intelligent Sound Level Meter

智能声级计的设计与分析

Dynamic range is wide, the most high sound level ≥ 108dB;

动态范围宽，最高声压级大于108dB，可完整接收强弱差别大的次声信号；

Each badge measured the sound level coming from its microphone and set the speed of its individual drive motor accordingly, steering the blimp away from areas with greater noise levels.

每个测量标志的声音从话筒的水平，并设置其相应的个人驱动电机转速，转向的飞艇远离领域有更大的噪音水平。

"Electric, sonic properties and measuring methods for sound level meters"

GB/T3785-1983声级计的电、声性能及测试方法

Audiometric Ambient Noise Evaluated by Using A& Weighted Sound Level

用A&计权声级评价测听环境噪声

Conclusion Recording sound level meter can be well used to measure and assess noise exposure in complicate working environment.

结论个体噪声暴露测量可以较好地解决现场复杂情况下的噪声暴露评价问题。

The Automatic Measurement System of Sound Level Meter Based on PULSE System

基于PULSE系统的声级计自动检定测试系统

Methods SH-126 recording sound level meters were applied to measure noise exposure individually in two groups of air compressor operators for each workday. At same time working environmental noise levels in the two workshops were also measured using the sound level meter with traditional way.

方法采用SH126记录式声级计测量两组空压工在不同工作日内的噪声暴露，同时用声级计按经典方法在典型工作位多点测量噪声水平。

Experimental Research on Anti-Electromagnetic Radiation Interference of Sound Level Meter

声级计抗电磁场辐射干扰试验研究

A verification method of sound level meter's low frequency record used near sound field of circular piston sound sources

声级计低频响应检定&圆形活塞声源近声场检定方法

A revised prediction of the total sound pressure level in an auditorium

厅堂中总声压级的修正计算

Survey and Determination of Acoustic Power Level of Railway Regular Sound Source

铁路常见固定性声源声功率级的测定

Currently, there are various ways to detect liquid level automatically, such as Differential Pressure Level Measurement, Float style level measurement, Sound level measurement, capacitive liquid level measurement, there are different applications in different environments.

目前液位自动检测的方法多种多样，如差压式液位测量、浮体式液位测量、声波液位测量、电容式液位测量等，在不同的环境下有着不同的应用。

And the present work discusses the shortage of A-weighted sound level in noise evaluation, applicability of interior noise evaluation for high-speed trains using other noise evaluation criteria, and sound quality objective evaluation based on psychoacoustic parameters.

讨论使用A声级评价车内噪声时的不足，研究其他噪声评价指标的适用性并用于评价车内噪声。最后，基于心理声学参量对高速列车车内声品质进行初步探讨。

Objective To compare the virtues and disadvantages between the measure results using individual dosimeter and sound level meter respectively.

目的比较个体计量仪与声级计评价挡车工噪声暴露的异同。

With integration of DDS and computer technology, the tone burst instrument is well designed to meet the new testing standard of the sound level meter.

将DDS技术与单片机以及计算机技术结合，运用到猝发声仪器的设计中，实现了符合新的声级计检测标准的猝发声仪器的开发。