When one is working with an electrical circuit, it is important that various parameters can be measured as needed to ensure that everything is functioning as intended. Generally, some of the most important parameters that one will monitor are potential difference, current, and resistance; these values can be determined through the use of specialized instruments and tools. Voltmeters and multimeters are two instruments relied on by many electricians to conduct their readings, and while both tools have some overlapping features, it is important to understand the functionality of each to determine when it is best to use one or the other.
The multimeter is one of the most important instruments in the arsenal of an electronics designer or electrician, and it is used to measure two or more electrical values. With diagnostic capabilities, multimeters can be relied on for determining voltage, current, and resistance, those of which come in units of volts, amps, and ohms respectively. Multimeters widely range in their features and capabilities based on their design and advanced options, and technicians will generally choose between various types based on their requirements. Nevertheless, all will fall under one of two categories, either being an analog or a digital multimeter.
Analog multimeters are more simplistic, featuring conventional dials for the measurement of voltage, current, and resistance. While they are not as popular in the modern day with the prevalence of digital options, they are often relied on when increased sensitivity is desired. Even the smallest change in voltage can cause the needle on the dial to shift, making it much easier to see exact values and conditions as compared to a digital output. With a digital multimeter, an LCD display, knob, analog converter, and circuitry are all provided for standard operations. While potentially less sensitive, digital multimeters may be more diverse in their capabilities and features.
While multimeters allow for various values to be measured, the voltmeter is an instrument tasked with determining the voltage value of direct or alternating current. Similar to multimeters, one may procure an analog or digital voltmeter based on their needs. For voltmeters, the digital variant is known to be more accurate than their analog counterparts. While a multimeter can directly measure parameters, it is important to know that voltmeters only measure potential differences between two points in a circuit and cannot find resistance, current, frequency, capacitance, etc.
With their limited capabilities in terms of application, voltmeters cannot be used in lieu of a multimeter, though a multimeter can replace a voltmeter. Despite lacking various features and capabilities, voltmeters tend to be available at a lower price point, making them a good choice if you only need to conduct measurements for potential differences. For basic applications, multimeters are often used for diode and transistor testing, while voltmeters may serve other needs. If you find yourself in the market for either instrument, let the experts at Internet for Aviation help you secure all you require with competitive pricing and rapid lead times.
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