Figure I-3. KSC electric field change and CS110 slow antenna data
The KSC electric field mill and the CS110 were not precisely synced accounting for some of the
differences in the data shown in Figure I-3 (p. 64). Since that time, CS110 design improvements
now allows the CS110 to sync to within ±10 µs of the GPS signal PPS pulse. The resolution of
accuracy for the clock set is 10 microseconds if the internal CR1000 data logger has a hardware
revision number greater than 007 (RevBoard field in the data logger's Status table).
I.3 Slow antenna programming
In CRBasic Example 1 (p. 65), the PipeLineMode instruction enables parallel task processing
necessary to complete a scan in 20 ms. The CS110 instruction following the BeginProg
statement provides a measure of the absolute electric field along with a leakage current
compensation value, and is only executed once. The CS110Shutter() instruction can fully
open or fully close the shutter, based on the whether the second parameter is 1 or 0, respectively.
Two VoltDiff() instructions used on two different input voltage ranges provide more
dynamic range in the charge amplifier output measurement.
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