decibel with reference to one kilowatt

简明释义

分贝计

英英释义

例句

1.The generator's noise level reached 95 decibel with reference to one kilowatt, making it unsuitable for residential areas.

发电机的噪音水平达到了95 以一千瓦为参考的分贝，使其不适合居住区。

2.The sound system was measured at 90 decibel with reference to one kilowatt, indicating it was quite powerful.

该音响系统的测量为90 以一千瓦为参考的分贝，表明其相当强大。

3.Our latest model can operate at a maximum of 100 decibel with reference to one kilowatt during peak performance.

我们的最新型号在峰值性能时可以达到最高100 以一千瓦为参考的分贝。

4.When designing the amplifier, we need to ensure it operates below 85 decibel with reference to one kilowatt to avoid distortion.

在设计放大器时，我们需要确保其操作低于85 以一千瓦为参考的分贝，以避免失真。

5.To comply with regulations, the industrial machine must not exceed 80 decibel with reference to one kilowatt in noise output.

为了遵守规定，工业机器的噪音输出不得超过80 以一千瓦为参考的分贝。

作文

Understanding the concept of sound measurement is essential in various fields, including acoustics, audio engineering, and telecommunications. One of the most commonly used units for measuring sound intensity is the decibel (dB). However, when discussing power levels, particularly in the context of electrical systems, it is crucial to understand the reference point used in calculations. This brings us to the phrase decibel with reference to one kilowatt, which plays a significant role in defining sound power levels relative to a specific power output.A decibel is a logarithmic unit that expresses the ratio of two values, typically power or intensity. The use of logarithms allows for a more manageable representation of large variations in sound levels. When we refer to sound levels, we often need to establish a reference point to provide context. In many cases, this reference is set at one milliwatt (mW) for sound pressure levels. However, when we talk about decibel with reference to one kilowatt, we shift our focus to a much higher power level.One kilowatt (kW) is equivalent to 1000 watts. Therefore, when we say decibel with reference to one kilowatt, we are indicating that we are measuring sound power levels based on a reference of 1000 watts. This reference point is particularly useful in industrial applications, where high power levels are common, and it helps engineers and technicians quantify sound emissions from machinery or equipment.The formula for calculating the sound power level in decibels with respect to one kilowatt can be expressed as follows: L = 10 * log10(P / P0)In this formula, L represents the sound power level in decibels, P is the measured sound power in watts, and P0 is the reference power level, which in this case is one kilowatt or 1000 watts. By using this formula, one can determine how many decibels a particular sound source emits compared to a baseline of one kilowatt.For example, if a machine produces a sound power level of 10 kW, we can calculate its sound power level in decibels with reference to one kilowatt as follows:L = 10 * log10(10,000 W / 1000 W) = 10 * log10(10) = 10 dB.This calculation shows that the machine emits sound at a level of 10 dB above the reference point of one kilowatt.Understanding decibel with reference to one kilowatt is not only important for compliance with noise regulations but also for designing quieter machines and improving workplace safety. In industries where loud machinery operates, keeping sound levels within acceptable limits is crucial for protecting workers’ hearing and ensuring a conducive working environment. By measuring sound power levels in relation to one kilowatt, engineers can make informed decisions about sound insulation, equipment design, and operational practices.In conclusion, the phrase decibel with reference to one kilowatt is a vital concept in sound measurement, particularly in industrial settings. It allows professionals to quantify sound power levels accurately and make necessary adjustments to reduce noise pollution. As technology advances and industries evolve, understanding these measurements will remain critical for maintaining safety and efficiency in various work environments.

理解声音测量的概念在声学、音频工程和电信等多个领域中至关重要。分贝（dB）是用于测量声音强度的最常用单位之一。然而，在讨论功率水平时，特别是在电气系统的背景下，了解计算中使用的参考点是至关重要的。这就引出了短语以一千瓦为参考的分贝，它在定义相对于特定功率输出的声功率水平方面发挥着重要作用。分贝是一种对数单位，用于表示两个值的比率，通常是功率或强度。对数的使用使得大幅度变化的声音级别能够以更易于管理的方式进行表示。当我们提到声音级别时，通常需要建立一个参考点来提供上下文。在许多情况下，这个参考点设定在一毫瓦（mW）用于声压级。然而，当我们谈论以一千瓦为参考的分贝时，我们将焦点转移到一个更高的功率水平上。一千瓦（kW）等于1000瓦。因此，当我们说以一千瓦为参考的分贝时，我们表示我们正在基于1000瓦的参考测量声功率水平。这个参考点在工业应用中尤其有用，在这些应用中，高功率水平是常见的，它帮助工程师和技术人员量化机器或设备的声音排放。计算以一千瓦为参考的声功率级的公式可以表示如下：L = 10 * log10(P / P0)在这个公式中，L代表以分贝为单位的声功率级，P是以瓦特为单位的测量声功率，P0是参考功率水平，在这种情况下是一个千瓦或1000瓦。通过使用这个公式，可以确定特定声源相对于一千瓦基准发出多少分贝。例如，如果一台机器产生10 kW的声功率级，我们可以按如下方式计算其以一千瓦为参考的声功率级：L = 10 * log10(10,000 W / 1000 W) = 10 * log10(10) = 10 dB。这个计算表明，该机器发出的声音级别比一千瓦的参考点高出10 dB。理解以一千瓦为参考的分贝不仅对遵守噪声法规很重要，而且对设计更安静的机器和改善工作场所安全也至关重要。在噪音较大的机械操作的行业中，保持声音水平在可接受的范围内对于保护工人的听力和确保良好的工作环境至关重要。通过相对于一千瓦测量声功率级，工程师可以对声隔离、设备设计和操作实践做出明智的决定。总之，短语以一千瓦为参考的分贝是声音测量中的一个重要概念，特别是在工业环境中。它使专业人员能够准确量化声功率级，并进行必要的调整以减少噪声污染。随着技术的进步和行业的发展，理解这些测量将继续对保持各种工作环境中的安全和效率至关重要。