There are the following:
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1. Capacitance meter: Capacitance meter is a kind of instrument specially used to measure capacitance value, which can directly read capacitance value. Common capacitance meters include handheld digital capacitance meters and desktop digital capacitance meters.
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2. Multimeter: A multimeter can measure various electrical parameters, such as resistance, current, voltage, and capacitance. To measure capacitance, select a capacitor gear. A multimeter can measure small capacitance values, but the measurement accuracy is lower for large capacitance values.
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3. LCR table: LCR table is a special instrument for measuring parameters such as inductance, capacitance and resistance, which can measure small capacitance values and large capacitance values with high accuracy.
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4. Oscilloscope: The oscilloscope can indirectly measure the capacitance value by observing the waveform of capacitor charge and discharge, but it needs to use an external circuit for charge and discharge operation, and the measurement accuracy is low.
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5. RC oscillator: RC oscillator is an instrument based on the principle of capacitor charge and discharge period to measure capacitance value, can measure small capacitance value, but need to use an external circuit for charge and discharge operation.
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In short, different instruments for measuring capacitance have their own characteristics and scope of application, and the appropriate instrument needs to be selected according to the specific measurement needs.
The LCR Bridge (Inductance Capacitance Bridge) is a common instrument for measuring capacitance.
1. LCR Bridge is an instrument for measuring capacitance. 2. LCR Bridge is based on the principle of electric bridge, using the comparison of variable capacitance and fixed capacitance, by measuring the balance condition of the bridge, calculate the electrical parameters of the capacitor.
Therefore, the LCR Bridge is an effective tool for measuring capacitance. 3. In addition to the LCR Bridge, there are now other capacitance testing instruments on the market, including digital meters and oscilloscopes.
However, the LCR Bridge is still one of the preferred tools for measuring capacitance, because its measurement results are more accurate and reliable.
Common instruments for measuring capacitance are:
1 Capacitance meter (capacitance meter) : can directly measure the capacitance value, divided into digital and pointer type two.
2. LCR bridge: It can measure parameters such as inductance, capacitance and resistance.
3. Oscilloscope: it can measure the discharge time constant of the capacitor, and calculate the capacity value of the capacitor by observing the waveform of the capacitor charging or discharging.
4. LC shaker: The capacitance value can be calculated by observing the resonant frequency of the circuit.
5. Frequency meter: The capacitance value can be calculated by reading the resonant frequency of the capacitor in the resonant circuit.
The instruments used to measure capacitance with an electric meter are limited
because the meter calculates the capacitance value by measuring the voltage at both ends of the capacitor and the current through the capacitor
However, due to the small current required for capacitance measurement, the range and sensitivity of many meters are difficult to meet the requirements required for capacitance measurement
The more common instrument used to measure capacitance is the bridge. Four-stage Bridges, Rayleigh Bridges, etc., can be used to measure capacitance size
In addition, digital multimeters, LCR meters, etc., can also be used for accurate capacitance measurement
capacitance measuring instrument
capacitance measuring instrument (capacitance measuring instrument) is a capacitance measuring instrument with high precision, wide testing range, simple operation and perfect function. Offering typical test frequencies up to 10kHz and four-stage sorting, the product is particularly suitable for rapid production line measurements, as well as ESR and EPR measurements of capacitors.
There are many instruments that can fully realize capacitance measurement.
Common ones are Bridges, digital capacitance meters, LCR meters, and so on.
The principles and methods of use of these instruments are different, some rely on current measurement, and others use the principle of oscillating circuits to achieve capacitance measurement.
In the actual measurement, it is necessary to select the appropriate instrument according to the specific needs in order to obtain the accurate measurement results.
If you need to measure larger capacitance, you can use the series capacitance method, or use a special high-frequency capacitance instrument.
If very small capacitance values need to be measured, special low-noise, high-precision capacitance measuring instruments are also required.