The signal generator is a kind of test equipment used to generate waves (sine wave, square wave, triangular wave) or electrical standard test signals. It is also called an oscillator because it generates periodic signals. It can provide different types of waves depending on the application, these waves are mainly used in test instruments, development … Read more
Multimeters are widely used in measurement technology. The multimeter can measure various electrical quantities like resistance, AC and DC voltage, current, capacitance, etc. at one go. Voltmeter, ammeter, and millimeter are combined in a multimeter, which is also called VOM (Volt-Ohm Millimeter). Multimeters may also have different capabilities, for example, diode testing, coherence testing, transistor … Read more
There are different types of ohmmeters with different levels. Like micro, mega, and milli ohmmeter, etc. Low resistance is measured by a micro-ohmmeter and high resistance by a mega-ohmmeter. Using an ohmmeter is easy and convenient, but the result obtained is less accurate. The instrument which is used to measure the electrical resistance of a … Read more
An instrument used to measure direct (DC) or alternating (AC) electric current is called an ammeter. Current is the flow of electrons whose SI unit is ampere. Therefore, the instrument with which the flow of current in an ampere is measured is called the ampere meter or ammeter. For an ideal ammeter, the internal resistance … Read more
The AC voltmeter is designed for the measurement of AC voltage. the only difference between AC and DC voltmeter is that rectifier is used for the measurement of AC voltage and DC voltage in the AC voltmeter. Since the rectifier can convert ac voltage to dc voltage. The block diagram of the AC voltmeter is … Read more
In the tutorial on Types of Voltmeters, we discussed the types of Voltmeters. Now we will know about the different types of DC voltmeter, which are as follows: DC Voltmeter The DC voltmeter measures the DC voltage by moving the pointer against a fully calibrated scale. The calibrated scale is obtained by a PMMC meter. … Read more
A voltmeter is an electrical component (voltage) measuring instrument that measures the amount of voltage at any two points in an electrical circuit. The units of voltage are volts and the measuring device is a meter that measures voltage by calibrating it to volts, millivolts (0.001 volts), or kilovolts (1,000 volts). A voltmeter has a … Read more
The performance characteristics of the measuring instrument are classified as static and dynamic characteristics. Error is one of the stable characteristics. The difference between the true value and the measured value does not change over time. The true value is the average of an infinite number of measurements, and the measured value is the exact … Read more
Measuring instruments are devices that represent the measured quantity in the form of the widely displayed information. The characteristics of measuring instruments help to know the performance of an instrument and measure any quantity or parameter.A measuring instrument may show the measured value directly or it may show a value equal to the known measurement … Read more
The instruments which are used to measure the power factors in any quantity are known as measuring instruments. Which are useful for measuring electrical quantities or parameters. The electric current cannot be detected by the eye. Electronic measuring instruments are used to measure the flow of electricity. These tools are important for understanding the nature … Read more