金属膜和碳膜电阻之间的差异|比较类似术语之间的差异

Key Difference – Metal Film vs Carbon Film Resistors

Most metal film resistors and carbon film resistors have a similar appearance and shape but the key difference between metal film and carbon film resistors is that金属膜电阻使用金属膜来限制电流的流动，而碳膜电阻使用碳膜来限制电流流量。

电阻电子元件的电路。他们是我们ed to limit the electric current flow through the circuit. Therefore, these components are very important to regulate the electric current. There are three main types of film resistors named as metal film resistors, carbon film resistors, and metal oxide resistors.

1。概述和关键差异
2。什么是金属膜电阻器
3。什么是碳膜电阻
4。金属膜和碳膜电阻之间的相似性
5。并排比较 - 金属膜与表格形式的碳膜电阻
6.Summary

什么是金属膜电阻？

金属膜电阻是一种使用薄金属膜来限制电流流动的一种电阻。电阻由非导电材料上的薄金属层组成。金属膜电阻是最常见的形式thin film resistors。

在构造金属膜电阻器期间，将合适的金属膜（锑，锡，镍铬合金等）沉积在合适的非导电材料上（纯度高陶瓷）上。然后，通过在低温下将其长时间保持长时间来使这种薄膜进行衰老。膜的衰老导致电阻的高精度。

这stability and the accuracy of the resistor are highly dependent on the thickness of the metal film. For examples, if the thickness is high, the stability of the resistor is high, but the accuracy is low. The ends of the resistor are covered with a metal cover. The metal cover is pressed along with connection leads (terminal points from which the resistor is connected to a circuit). The desired resistance can be obtained by cutting a spiral shaped slot in the metal film using a laser.

图01：金属膜电阻器

这优点使用金属膜电阻可以如下列出。

比其他形式的电阻便宜
产生的噪音比其他类型的电阻较少
高稳定性
尺寸很小
高准确率

什么是碳膜电阻?

碳膜电阻是一种电阻的形式，它使用薄碳膜来限制电流流量。电阻由纯陶瓷材料上的薄碳层组成。但是，与其他形式的薄膜电阻相比，碳膜电阻的生产昂贵。这些碳膜电阻最好用于高压和高温应用。

Figure 2: A Cross-Section of a Carbon Film Resistor

Carbon film resistors are produced by a deposition process. Initially, the ceramic portion is kept at a high temperature in the presence of hydrocarbon gases such as methane. The gas undergoes cracking reactions at high temperatures (around 1000°C). Then the crystalline carbon (from pure graphite) deposits on the ceramic. The resistance of the resistor can be controlled by regulating the thickness of the carbon layer.

金属膜和碳膜电阻之间有什么相似之处？

Both metal film and carbon film resistors have similar appearance and shape.
两者的大小相似。
两者都使用陶瓷作为非导电材料。
可以通过调节薄膜的厚度来控制两个电阻的电阻。

金属膜和碳膜电阻有什么区别？

金属膜与碳膜电阻
金属膜电阻是一种使用薄金属膜来限制电流流量的一种形式。	碳膜电阻是一种电阻的形式，它使用薄碳膜来限制电流流量。
Formation
金属膜电阻在陶瓷上具有薄金属膜（锑，锡，镍铬合金等）。	碳膜电阻在陶瓷上的纯石墨中具有薄薄的碳。
Accuracy
金属膜电阻的准确性高于碳膜电阻。	碳膜电阻的准确性低于金属膜电阻。
稳定
金属膜电阻的稳定性很高。	碳膜电阻的稳定性很低。
Cost
Metal film resistors are low-cost resistors.	碳膜电阻是高成本电阻。

摘要 - 金属膜与碳膜电阻

电阻are components in circuits that are used to regulate electrical current flow through the circuit. The key difference between metal film and carbon film resistors is that metal film resistors use a metal film to limit the flow of electric current whereas carbon film resistors use a carbon film to limit the electric current flow.

参考：

1。Shaik, Asif. Metal Film Resistor. Physics and Radio-Electronics,在这里可用。
2.“金属膜电阻器。电阻指南，在这里可用。
3.“碳膜电阻，电阻指南，在这里可用。
4.“电阻的类型，包括碳，膜和成分”。基本电子教程，2018年3月2日，在这里可用。