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In Reply to: How do you measure a capacitor? posted by gnugear on February 23, 2007 at 09:19:56:
Connect your capacitor in series with another capacitor whose value is known. Apply 125 VAC from wall outlet and measure voltage drop on each capacitor. Calculate the value of the unknown capacitor based on inverse proportionate relationship between voltage drop and capacitance.Example: Capacitor X in series with 10 uF test capacitor. Voltage drop on the 10 uF capacitor is 100 V, and on capacitor X is 25 V. From the formula Ux/Utest = Ctest/Cx, the Cx value is (100x10)/25 = 40 uF.
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Follow Ups
- Measuring with just multimeter. - sser2 12:16:37 02/23/07 (0)