Measuring rotary conductance circuit diagram
1. Connect the circuit as shown in Figure 2.16.5. Connect the gyrator input terminal u1 to the sinusoidal signal US. The resistor R0 is 51Ω, the resistor R is 1kΩ, the load resistor RL is 2kΩ, and the sampling resistor r0 is 2kΩ. Fix the frequency of the sinusoidal signal source at about 3kHz. In the range of 0 to 3V, gradually increase the amplitude of the sinusoidal signal u1 from low to high. Take a point every time it increases by about 0.5V, and record the readings of u1, u2 and ur0 at this time. According to ur0, the input current i1 can be obtained, and the gyroconductance g and input resistance Rin can be obtained from u1, u2 and i1, and compared with the theoretical calculated values.
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