Campbell-scientific CS110 Electric Field Meter Manuel d'utilisateur Page 15

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CS110 Electric Field Meter
3. CS110 Measurement Details
The charge amplifier circuitry of the reciprocating electric field meter is
depicted in Figure 2. Induced charge on the sense electrode results in the
operational amplifier placing charge on the feedback capacitor C in order to
restore the sense electrode to virtual ground.
FIGURE 2. Charge amplifier circuitry of reciprocating electric field
meter
The charge amplifier output during a measurement cycle of the reciprocating
electric field meter is illustrated in Figure 3.
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