picofarads

简明释义

英[ˈpiːkəʊˌfærəd]美[ˈpaɪkoʊˌfærəd]

n. 微微法拉（百亿分之一法拉）

英英释义

单词用法

同义词

反义词

例句

1.So it's much more common to see microfarads (one-millionth of a farad) and even picofarads (one-millionth of a microfarad).

所以微法拉（百万份之一法拉）和皮法拉（百万份之一微法拉）更为常见。

2.So it's much more common to see microfarads (one-millionth of a farad) and even picofarads (one-millionth of a microfarad).

所以微法拉（百万份之一法拉）和皮法拉（百万份之一微法拉）更为常见。

3.The capacitor has a value of 10 picofarads (皮法) which is suitable for high-frequency applications.

这个电容器的值为10 picofarads (皮法)，适合高频应用。

4.In RF circuits, capacitors are often measured in picofarads (皮法) to ensure proper tuning.

在射频电路中，电容器通常以picofarads (皮法) 为单位进行测量，以确保正确的调谐。

5.A typical ceramic capacitor might have a capacitance of 100 picofarads (皮法).

一个典型的陶瓷电容器的电容可能为100 picofarads (皮法)。

6.When designing filters, engineers often specify values in picofarads (皮法) for precision.

在设计滤波器时，工程师通常指定picofarads (皮法) 的值以确保精度。

7.The input capacitance of the amplifier is around 5 picofarads (皮法).

放大器的输入电容约为5 picofarads (皮法)。

作文

In the world of electronics, understanding capacitance is crucial for designing and analyzing circuits. One unit of measurement that often comes up in this context is the picofarad, which is represented by the symbol 'pF'. A picofarad is a unit of capacitance equal to one trillionth (10^-12) of a farad. To put this into perspective, a farad is a very large unit of capacitance typically used in large capacitors, while a picofarad (即皮法) is more commonly used for smaller components like capacitors in radio frequency applications, filters, and other high-frequency circuits. Capacitance is important because it describes how much electric charge a capacitor can store per volt. The smaller the capacitance value, the less charge the capacitor can hold. This is where picofarads (即皮法) come into play, as many electronic components require very small capacitance values. For instance, in RF circuits, capacitors with values in the range of a few picofarads (即皮法) are often used to tune frequencies and filter signals. Another reason why picofarads (即皮法) are significant is their role in determining the performance of high-speed digital circuits. As technology advances and devices become more compact and efficient, the trend has been toward miniaturization. This means that components need to be smaller, and their capacitance values must also decrease. Therefore, engineers and designers need to be proficient in working with picofarads (即皮法) to ensure that their designs meet the necessary specifications. When measuring capacitance, it's essential to understand how to convert between units. For example, if a capacitor is rated at 10 picofarads (即皮法), it means it can hold 10 trillionths of a farad. This is an incredibly small amount of capacitance, which is why it is often used in applications where precision is key, such as in timing circuits or oscillators. Moreover, the use of picofarads (即皮法) extends beyond just capacitors. In the realm of signal integrity and transmission lines, the capacitance of the traces on a printed circuit board (PCB) can also be expressed in picofarads (即皮法). This capacitance affects how signals propagate through the circuit, influencing factors like rise time and signal distortion. In conclusion, the picofarad (即皮法) is a vital unit of measurement in electronics, particularly in high-frequency and high-speed applications. Understanding how to work with picofarads (即皮法) is essential for anyone involved in designing electronic circuits. Whether it's tuning a radio frequency, filtering signals, or ensuring signal integrity in digital circuits, the significance of picofarads (即皮法) cannot be overstated. As technology continues to evolve, the importance of mastering such small units of capacitance will only grow, making it an essential skill for future engineers and designers.

在电子世界中，理解电容对于设计和分析电路至关重要。在这种情况下，常常会提到一个测量单位，即皮法（picofarad），用符号'pF'表示。皮法是电容的一个单位，等于法拉（farad）的万亿分之一（10^-12）。为了更好地理解这一点，法拉是一个非常大的电容单位，通常用于大型电容器，而皮法（picofarad）更常用于如射频应用、滤波器和其他高频电路等小型组件。 电容很重要，因为它描述了电容器每伏特可以存储多少电荷。电容值越小，电容器能够保持的电荷就越少。这就是皮法（picofarads）发挥作用的地方，因为许多电子组件需要非常小的电容值。例如，在射频电路中，通常使用几皮法（picofarads）范围内的电容器来调谐频率和过滤信号。 另一个皮法（picofarads）重要的原因是它们在确定高速数字电路性能中的作用。随着技术的发展和设备变得更加紧凑和高效，趋势是朝着微型化发展。这意味着组件需要更小，其电容值也必须降低。因此，工程师和设计师需要熟练掌握皮法（picofarads），以确保他们的设计满足必要的规格。 在测量电容时，了解如何在单位之间转换是至关重要的。例如，如果一个电容器的额定值为10皮法（picofarads），这意味着它可以保持10万亿分之一法拉的电荷。这是一个极其小的电容值，这就是为什么它通常用于精度至关重要的应用，如定时电路或振荡器。 此外，皮法（picofarads）的使用不仅限于电容器。在信号完整性和传输线领域，印刷电路板（PCB）上导线的电容也可以用皮法（picofarads）来表示。这种电容影响信号在电路中的传播，从而影响上升时间和信号失真等因素。 总之，皮法（picofarad）是电子学中一个重要的测量单位，特别是在高频和高速应用中。理解如何使用皮法（picofarads）对于任何参与电子电路设计的人来说都是必不可少的。无论是调谐射频、过滤信号还是确保数字电路中的信号完整性，皮法（picofarads）的重要性都不容小觑。随着技术的不断发展，掌握如此小的电容单位的重要性只会增加，使其成为未来工程师和设计师必须具备的一项技能。