In the absence of special instruments under the conditions of equipment, capacitor and quality of the performance level of resistance multimeter can be used to detect file, and be judged keyword: capacitor detection method.
In the absence of special instruments under the conditions of equipment, capacitors and quality of the performance level of resistance multimeter can be used to detect file, and be judged. Large capacity (1 μ F above) of the capacitor can be fixed stalls multimeter resistance (R × 1000) Measurement of the two capacitor electrodes, Biaozhen resistance to the small swing in the direction, and then slowly put back to ∞ nearby. Then the exchange of test rods try again to see Biaozhen the swing, swing is, that the greater capacity of electric capacitors. If the test bar has been touch capacitor fuses, Biaozhen should mean in the vicinity of ∞, otherwise, shows that the leakage of a capacitor, its resistance value is, the greater the amount that leakage, the capacitor poor quality if the measure does not move when Biaozhen That the capacitor has expired or open circuit if Biaozhen swing, but can not return to the starting point, the large amount of leakage that capacitor, its poor quality.
The capacity of smaller capacitors, with a multimeter to measure often do not see Biaozhen swing, at this time, plus the help of a DC voltage and the use of a multimeter to measure DC voltage profile, which is the multimeter transferred to the appropriate DC voltage profile, negative (black ) To test DC power anode rod is (red) rods to test measured the capacitor side, another power cathode termination.
A good performance in the capacitor connected to the power of the moment, the Biaozhen multimeter should be larger swing, the greater the capacity of capacitors, the greater the Biaozhen the swing, swing, Biaozhen can gradually return to zero. If the capacitor connected to the power of the moment, the guidelines do not swing multimeter, then capacitor failure or opening; if Biaozhen supply voltage has been instructed not to swing, the breakdown shows that capacitors have been short-circuit; if Biaozhen normal swing, but not to return to zero That a capacitor leakage phenomenon, directed by the higher value of the voltage, that the greater volume of leakage. It must be pointed out is: Measuring the capacity of small capacitors used by the auxiliary DC voltage capacitor can not be measured over the pressure to avoid because of measuring damage caused by the breakdown capacitors. To accurately measure the capacity of capacitors, the need for a capacitor bridge or Q. Above the simple detection method, only a rough judgement of the quality of capacitor.
In the absence of special instruments under the conditions of equipment, capacitors and quality of the performance level of resistance multimeter can be used to detect file, and be judged. Large capacity (1 μ F above) of the capacitor can be fixed stalls multimeter resistance (R × 1000) Measurement of the two capacitor electrodes, Biaozhen resistance to the small swing in the direction, and then slowly put back to ∞ nearby. Then the exchange of test rods try again to see Biaozhen the swing, swing is, that the greater capacity of electric capacitors. If the test bar has been touch capacitor fuses, Biaozhen should mean in the vicinity of ∞, otherwise, shows that the leakage of a capacitor, its resistance value is, the greater the amount that leakage, the capacitor poor quality if the measure does not move when Biaozhen That the capacitor has expired or open circuit if Biaozhen swing, but can not return to the starting point, the large amount of leakage that capacitor, its poor quality.
The capacity of smaller capacitors, with a multimeter to measure often do not see Biaozhen swing, at this time, plus the help of a DC voltage and the use of a multimeter to measure DC voltage profile, which is the multimeter transferred to the appropriate DC voltage profile, negative (black ) To test DC power anode rod is (red) rods to test measured the capacitor side, another power cathode termination.
A good performance in the capacitor connected to the power of the moment, the Biaozhen multimeter should be larger swing, the greater the capacity of capacitors, the greater the Biaozhen the swing, swing, Biaozhen can gradually return to zero. If the capacitor connected to the power of the moment, the guidelines do not swing multimeter, then capacitor failure or opening; if Biaozhen supply voltage has been instructed not to swing, the breakdown shows that capacitors have been short-circuit; if Biaozhen normal swing, but not to return to zero That a capacitor leakage phenomenon, directed by the higher value of the voltage, that the greater volume of leakage. It must be pointed out is: Measuring the capacity of small capacitors used by the auxiliary DC voltage capacitor can not be measured over the pressure to avoid because of measuring damage caused by the breakdown capacitors. To accurately measure the capacity of capacitors, the need for a capacitor bridge or Q. Above the simple detection method, only a rough judgement of the quality of capacitor.
