Quick selection of LCR digital bridge

Quick selection of LCR digital bridge:

1. What performance parameters should we pay attention to for new users of LCR digital bridges?

(1) The testing frequency of the instrument.

(2) The testing accuracy of the instrument.

(3) The testing level of the instrument.

(4) The output impedance of an instrument, also known as internal resistance.

2. Does different frequencies have an impact on component testing?

Answer: Yes, please refer to the article "Fundamentals of Impedance Measurement" for testing signal frequency signal correlation.

3. Does voltage difference affect component testing?

Answer: Yes, please refer to the article "Impedance Measurement Fundamentals" for details on testing signal level signal correlation.

4. How to choose the testing voltage and frequency?

(1) Based on the actual application of the tested object.

(2) According to relevant product standards.

(3) According to customer specific requirements.

5. What testing conditions should customers choose for a known "capacitor"?

(1) Capacitors smaller than 100pF are measured at a frequency of 1MHz, while medium capacities such as (1000pF-10uF) are measured at 1KHZ, 10KHZ, and 100KHZ. The national standard for testing medium capacitors is 1KHZ. Electrolytic materials such as aluminum electrolysis and tantalum electrolysis use 100HZ or 120HZ.

(2) From the perspective of voltage level, most capacitors are not sensitive to voltage levels, and there is little change in testing at different levels. However, some capacitors with high dielectric constants are very sensitive to voltage levels, and the voltage level should be carefully selected.