Environmental noise is a major issue in most countries, especially in areas of high population, and the sources of noise and their adverse effects on our well-being are varied.環(huán)境噪聲是一個(gè)重大的問(wèn)題在大多數國家，特別是在高人口地區，噪聲的來(lái)源和對我們的福祉的不利影響是多方面的。 紅外線(xiàn)測溫儀| 溫濕度儀| 紅外線(xiàn)溫度計| 露點(diǎn)儀| 亮度計| 溫度記錄儀| 溫濕度記錄儀| 光功率計| 粒子計數器| 粉塵計|

In terms of assessing the impact of these issues, we need to be able to make suitable noise measurements, or in some cases monitor the noise levels for longer periods.在評估這些問(wèn)題的影響而言，我們需要能夠作出適當的噪聲測量，或在某些情況下監視長(cháng)時(shí)間的噪音水平。

Industrial noise, for example, is a much more exact science, as you are interested in assessing specific noise levels and relating these to legislative or action levels.工業(yè)噪聲，例如，是一種更為精確的科學(xué)，因為你是在評估特定的噪音水平與這些有關(guān)的立法或行動(dòng)水平興趣。

Environmental noise is very different because the level of annoyance or nuisance can be very subjective and will elicit diverse reactions from different people.環(huán)境噪聲是非常不同的，因為煩惱或滋擾的水平可以是很主觀(guān)，并會(huì )引起不同的人不同的反應。

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Examples of typical noise sources: 噪聲源的典型例子：

• Industrial Sites工業(yè)用地
• Construction Work黨建工作
• Road Traffic道路交通
• Animals (Dogs barking)動(dòng)物（狗叫聲）
• Aircraft noise飛機噪音
• Entertainment venues娛樂(lè )場(chǎng)所

Environmental noise can also have different characteristics: 環(huán)境噪聲也可以有不同的特點(diǎn)：  

• Continuous連續
  • Extraction Fans, compressors etc提取風(fēng)機，壓縮機等
  • Road traffic道路交通
  • Industrial Processes工業(yè)過(guò)程

• Intermittent斷斷續續的

  • Transport運輸
  • Construction建設
  • Animals動(dòng)物
  • Industrial Processes工業(yè)過(guò)程
• Broadband (Noise that has a fairly even tone content and less annoying)寬帶（噪音，有一個(gè)相當甚至更討人喜歡的內容和語(yǔ)氣）

• Tonal Noise (Noise that has dominant tone(s) that can be very annoying)音調噪聲（噪聲有主基調（縣），可以非常惱人）

  • 'Whining' machinery '嗚嗚的機械設備
  • Low frequency noise that causes vibration within surrounding buildings etc.低頻噪音導致周?chē)�建筑物內等振�?dòng)
  • Wind turbines風(fēng)力渦輪機

Types of noise measurements噪聲測量的類(lèi)型

 1. 1。 Basic noise level checks or 'spot checks' 基本噪聲級的檢查或'抽查'

Often you need to take quick decisions and understand if there are likely to be any noise issues.通常你需要采取迅速做出決定并了解是否有可能被任何噪音問(wèn)題。 By using a simple sound level meter such as the Model 14 you have a cost effective, compact and 'easy to use' instrument that can be easily transported, allowing you to make a quick judgement regarding noise levels.通過(guò)使用諸如簡(jiǎn)單的模型14聲級計你有一個(gè)符合成本效益，結構緊湊，'方便使用'的工具，可以很容易地運輸，讓你迅速做出判斷有關(guān)噪音水平。 This is particularly useful where a more expensive instrument would be cumbersome and more prone to the risk of damage or misuse.這是特別有用的地方更昂貴的儀器將十分麻煩，更容易出現損壞或誤用的風(fēng)險。

The Model 14 is supplied with a wind-shield as standard to protect the microphone capsule and has two selectable ranges to allow you to quickly gauge both environmental and industrial level noises.該模型是配備有14個(gè)風(fēng)標準，以保障麥克風(fēng)膠囊盾，有兩個(gè)可選范圍，讓您快速測量環(huán)境和工業(yè)水平的噪音。 The instrument is compliant with IEC 61672 and can be supplied with an acoustic calibrator if you wish to verify your measurements – as really should be done.該儀器符合IEC 61672標準，可與聲校準器提供的，如果你想驗證你的測量 - 作為真正應該做的駿凱電子批發(fā)英國 Pulsar 噪音計。

2. 2。 Single but more detailed measurements 但更詳細的測量單

Environmental requirements and legislation vary based on your country, locality and specific circumstances.環(huán)境要求和立法根據您的不同國家，地區和具體情況。

Often a hand held integrating sound level meter such as the Model 30 would be mounted on a tripod at a boundary position and, for example, a 15 minute measurement made.通常，一個(gè)手持集成示范等30人是在邊界上的三腳架安裝位置和聲級計，例如，一個(gè)15分鐘的測量制成。 Often it is necessary to make a series of similar 'fixed duration' measurements and store these into the instruments memory (for subsequent analysis) for which the Model 30 or Model 33 are ideal.通常，有必要做一個(gè)類(lèi)似'固定期限'和一系列測量?jì)x器記憶存儲到這些（供日后分析）該模型30或33個(gè)型號的理想選擇。 The usual stored information may consist of the 'A' Weighted Leq, LN values, SPL values and perhaps 1:3 Octave Band information for tonal analysis.通常存儲的信息可能包括的'a'加權的Leq，LN的值，聲壓值，也許1:3倍頻為音調分析信息。

Typical view of a 1:3 Octave Band Analysis using Acoustic Toolbox software. 一個(gè)典型視圖1:3倍頻帶聲工具箱分析中的應用軟件。

3. 3。 Longer term monitoring 較長(cháng)期的監測

 Sometimes we need to monitor noise levels on an ongoing level and make longer measurements sub-divided by shorter measurement durations such as 5 minutes, 15 minutes or 1 hour.有時(shí)候，我們需要不斷監測水平的噪音水平，使子長(cháng)測量由測量持續時(shí)間較短的劃分，如5分鐘，15分鐘或1小時(shí)。 This allows us to look at, for example, a 24 hour period and find the average, background or maximum noise levels for every 15 minute period throughout the day.這使得我們可以看看，駿凱電子批發(fā)英國 Pulsar 噪音計例如，一個(gè)24小時(shí)內找到每15分鐘的時(shí)間內，全天平均，背景或最高噪音水平。 This gives us a much clearer picture of noise patterns and how they can be controlled to minimise their impact on the wider community.這給了我們一個(gè)更清晰的圖像噪音模式，以及他們如何可以控制，盡量減少其對更廣泛的社會(huì )影響。 Often, lower noise limits will be set during the late evening and night due to the extra impact of any noise.通常，低噪音限制將被設置在傍晚和夜間因任何額外的噪音影響。

Tonal Analysis音調分析

There are many engineering solutions available to reduce noise levels and by performing a 1:3 Octave Band Analysis before and after this work you can determine and report the effectiveness of such improvements.有很多的工程解決方案通過(guò)執行這項工作之前和之后，駿凱電子批發(fā)英國 Pulsar 噪音計你可以決定并報告這些改進(jìn)的成效1:3倍頻可供分析，以減少噪音水平及。