power gain

简明释义

功率增益

英英释义

例句

1.The new amplifier provides a significant power gain 功率增益 compared to the old model.

新的放大器相比旧型号提供了显著的功率增益。

2.Engine modifications lead to a noticeable power gain 功率增益 in performance.

发动机改装导致性能上有明显的功率增益。

3.In this circuit, we can achieve a power gain 功率增益 of up to 20 dB.

在这个电路中，我们可以实现高达20 dB的功率增益。

4.We need to measure the power gain 功率增益 to ensure the system is functioning optimally.

我们需要测量功率增益以确保系统正常运行。

5.The researchers were excited about the power gain 功率增益 achieved through their new technology.

研究人员对通过他们的新技术所获得的功率增益感到兴奋。

作文

In the realm of engineering and telecommunications, the term power gain refers to the increase in power output that a device or system can achieve compared to its input power. This concept is crucial for various applications, including amplifiers, antennas, and signal processing systems. Understanding power gain is essential for engineers and technicians who design and optimize these systems to ensure they function efficiently and effectively.Power gain is typically expressed in decibels (dB), which is a logarithmic scale that allows for easier comparison of power levels. A power gain of 10 dB means that the output power is ten times greater than the input power. This metric is particularly useful when dealing with large variations in power levels, as it compresses the range into a more manageable format. For instance, if an amplifier has an input power of 1 milliwatt (mW) and produces an output power of 10 mW, the power gain can be calculated using the formula:Power Gain (dB) = 10 * log10(Output Power/Input Power)In this case, the power gain would be 10 dB, indicating a significant increase in power.The importance of power gain cannot be overstated. In telecommunications, for example, higher power gain in antennas can lead to improved signal strength and coverage area. This results in better communication quality and reliability, which are critical for mobile networks and broadcasting services. Engineers strive to maximize power gain while minimizing losses due to factors such as resistance, interference, and environmental conditions.Moreover, in audio engineering, power gain plays a vital role in sound amplification. Musicians and sound technicians rely on amplifiers to boost the sound from instruments and microphones so that it can fill a venue or reach a larger audience. The ability to control power gain allows for precise adjustments to volume levels, ensuring that performances are both powerful and clear without distortion.Another area where power gain is significant is in renewable energy systems. For instance, solar panels convert sunlight into electricity, and the efficiency of this process is often measured by the power gain achieved. By optimizing the design and materials used in solar cells, researchers aim to increase the power gain to harness more energy from the sun, contributing to the global shift towards sustainable energy sources.In conclusion, the concept of power gain is fundamental across various fields, from telecommunications to audio engineering and renewable energy. It represents the enhancement of power output relative to input, allowing for improved performance and efficiency in numerous applications. As technology continues to advance, understanding and maximizing power gain will remain a key focus for engineers and scientists alike, ultimately driving innovations that enhance our daily lives and the world around us.

在工程和电信领域，术语power gain指的是设备或系统相对于其输入功率所能实现的功率输出增加。这个概念对各种应用至关重要，包括放大器、天线和信号处理系统。理解power gain对设计和优化这些系统的工程师和技术人员来说是必不可少的，以确保它们高效且有效地运行。功率增益通常以分贝（dB）表示，这是一种对数刻度，便于比较功率水平。10 dB的功率增益意味着输出功率比输入功率大十倍。当处理功率水平的巨大变化时，这一指标尤其有用，因为它将范围压缩为更易于管理的格式。例如，如果一个放大器的输入功率为1毫瓦（mW），并产生10 mW的输出功率，则可以使用以下公式计算power gain：功率增益（dB）= 10 * log10（输出功率/输入功率）在这种情况下，power gain将为10 dB，表明功率有显著增加。power gain的重要性不容小觑。在电信领域，例如，天线中的更高功率增益可以导致信号强度和覆盖区域的改善。这会导致通信质量和可靠性的提高，这对于移动网络和广播服务至关重要。工程师努力在最大化power gain的同时，最小化由于电阻、干扰和环境条件等因素造成的损失。此外，在音频工程中，power gain在声音放大中发挥着重要作用。音乐家和音响技术人员依赖放大器来增强乐器和麦克风的声音，以便填满场地或到达更大的观众。控制power gain的能力允许对音量进行精确调整，确保表演既强大又清晰而没有失真。power gain显著的另一个领域是可再生能源系统。例如，太阳能电池板将阳光转化为电力，而这一过程的效率通常通过实现的power gain来衡量。通过优化太阳能电池的设计和材料，研究人员旨在提高power gain，以从太阳中获取更多能量，促进全球向可持续能源来源的转变。总之，power gain的概念在电信、音频工程和可再生能源等多个领域中是基础性的。它代表了输出功率相对于输入的增强，使得许多应用中的性能和效率得以改善。随着技术的不断进步，理解和最大化power gain将始终是工程师和科学家的重点，最终推动增强我们日常生活和周围世界的创新。