Campbell-scientific CS110 Electric Field Meter Manual do Utilizador descarregar pdf (Página 68)

Appendix E. CS110 as a Slow Antenna

E-6

E.4 Calibration

The factory calibration described in Section 5 applies to the maximum

amplitude of the step response of the CS110 when it is operating as a slow

antenna. Switching in the 200 MΩ resistor in the feedback path simply slows

the decay of the signal induced on the sense electrode resulting in a 66

millisecond decay time constant

The CS110 operating as a slow antenna returns the change in the electric field

with units of volts per meter per scan. A 50 Hz scan interval would yield:

X volts * meter

-1

* 20 ms

-1

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Campbell-scientific CS110 Electric Field Meter Manual do Utilizador Página 68