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27

Jul

2026

Method to Distinguish Collector and Emitter of Triode with Multimeter

Method to Distinguish Collector and Emitter of Triode with Multimeter Usually we can easily find the base electrode b, but which of the other two electrodes is the collector electr
27

Jul

2026

What common functions are equipped on digital multimeters?

What common functions are equipped on digital multimeters? There are many models and types of digital multimeters, and the measurement items and functions of different models and t
27

Jul

2026

Summary of Operation Issues for Multimeter Ohm Range

Summary of Operation Issues for Multimeter Ohm Range 1. The measurement error of the multimeter is the smallest in the DC voltage range, followed by the AC voltage range, and the w
27

Jul

2026

Method for Measuring Resistance of Pull-in and Hold Coils of Electromagnetic ...

Method for Measuring Resistance of Pull-in and Hold Coils of Electromagnetic Switches with Multimeter The working current of the starter motor is high and the speed is high. In ord
27

Jul

2026

Resistance Measurement Circuit of Analog Multimeter

Resistance Measurement Circuit of Analog Multimeter According to Ohm's law, the current flowing through the meter head is: Where: RC - internal resistance of the meter head; RP
27

Jul

2026

Fault Causes & Prevention Measures of Digital Multimeters

Fault Causes & Prevention Measures of Digital Multimeters 1. In most cases, damage to a digital multimeter is caused by measurement gear errors. For example, when measuring AC
27

Jul

2026

In-circuit Resistance Measurement Using a Multimeter

In-circuit Resistance Measurement Using a Multimeter The resistance value of a resistor can be measured with a multimeter. By measuring the resistance value on the circuit, the qua
27

Jul

2026

Several Cases of Effective Values for Multimeters

Several Cases of Effective Values for Multimeters 1. The method of calibrating the average value, also known as the corrected average value or the rectified average value calibrate
27

Jul

2026

Comparison of Digital Multimeters and Analog Multimeters

Comparison of Digital Multimeters and Analog Multimeters Meters are divided into digital multimeters and pointer multimeters, which are indispensable measuring instruments in power
27

Jul

2026

Skills to Avoid Damage to Digital Multimeters

Skills to Avoid Damage to Digital Multimeters Digital multimeters are popular among radio enthusiasts due to their advantages of accurate measurement, convenient value taking, and
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Jul

2026

Take the following factors into consideration before selecting a multimeter:

Take the following factors into consideration before selecting a multimeter: 1. The reading accuracy of pointer meters is poor, but the process of pointer oscillation is relatively
26

Jul

2026

Circuit Diagram of AC Voltage Gear Measuring Principle for Multimeter

Circuit Diagram of AC Voltage Gear Measuring Principle for Multimeter The AC voltage in the external circuit is applied to the rectifier circuit through C1, converting the AC curre
26

Jul

2026

Identification and Judgment of FETs by Multimeter

Identification and Judgment of FETs by Multimeter Field effect transistor, abbreviated as FET. A typical transistor is composed of two polarities of charge carriers, namely majorit
26

Jul

2026

In-circuit Measurement of Resistors with Multimeter

In-circuit Measurement of Resistors with Multimeter The resistance value of a resistor can be measured with a multimeter. By measuring the resistance value on the circuit, the qual
26

Jul

2026

Troubleshooting of digital multimeters can be carried out roughly as follows.

Troubleshooting of digital multimeters can be carried out roughly as follows. 1, Appearance inspection. You can touch the temperature rise of the battery, resistor, transistor, and
26

Jul

2026

Voltage and Current Measurement Circuits for Digital Multimeters

Voltage and Current Measurement Circuits for Digital Multimeters 1. DC current measurement circuit in digital multimeter The DC current measurement circuit is equipped with 7 level
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Jul

2026

Analysis of Multimeter Error Impact on Measurement Results and Buying Guide

Analysis of Multimeter Error Impact on Measurement Results and Buying Guide The larger the internal resistance Rv of a voltmeter, the closer the measured value is to the actual val
26

Jul

2026

Peak Hold Function of Digital Multimeter

Peak Hold Function of Digital Multimeter The so-called "peak holding" function refers to the digital ability to hold the currently measured peak value on the display scre
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Jul

2026

Maintenance Methods and Operating Procedures for Insulation Resistance Testers

Maintenance Methods and Operating Procedures for Insulation Resistance Testers 1, General maintenance and upkeep 1) Regularly clean the casing of the instrument with a damp cloth a
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Jul

2026

Method for Detecting Leakage Faults in Lighting Circuits with Multimeter

Method for Detecting Leakage Faults in Lighting Circuits with Multimeter 1, The insulation of wires or equipment is damaged by external forces; 2, The long-term operation of the li

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