China Wholesale Specific Charge of Electron Factories – LEEM-18 AC Bridge Experiment – Labor

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China Wholesale Specific Charge of Electron Factories – LEEM-18 AC Bridge Experiment – Labor Detail:

Experiments
1. Learn and master the balance conditions and measurement principles of the AC bridge; verify the balance conditions of the AC bridge;
2. Measure capacitance and dielectric loss; self-inductance and its coil quality factor and mutual inductance and other electrical parameters.
3. Design various AC bridges for actual measurement.

The main technical parameters
1. Built-in power signal source: frequency 1kHz±10Hz, output voltage amplitude: 1.5Vrms;
2. Built-in digital display AC voltmeter: AC voltage measurement range: 0～2V, three and a half digital display;
3. Built-in four-digit LED digital frequency meter, measuring range: 20Hz～10kHz, measuring error: 0.2%;
4. Built-in AC zero-pointer: with overload protection, no meter head; sensitivity ≤1×10-8A/div, continuously adjustable;
5. Built-in bridge arm resistance:
Ra: consists of seven AC resistances of 1, 10, 100, 1k, 10k, 100k, 1MΩ, with an accuracy of 0.2%
Rb: Composed of a 10×(1000+100+10+1+0.1)Ω AC resistance box, with an accuracy of 0.2%
Rn: Composed of a 10K+10×(1000+100+10+1)Ω AC resistance box, with an accuracy of 0.2%
6. Built-in standard capacitor Cn, standard inductance Ln;
Standard capacitance: 0.001μF, 0.01μF, 0.1μF, accuracy 1%;
Standard inductance: 1mH, 10mH, 100mH, accuracy 1.5%;
7. The measured resistance Rx, capacitance CX and inductance LX with different values and performances are included.

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