Campbell CR9000, Инструкция по эксплуатации

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Section 7. Measurement Instructions
7-9
Parameter
& Data Type
Enter
BRHALF, BRHALF3W, BRHALF4W PARAMETERS
Integ
Constant
The integration time in microseconds for each of the channels measured (10 microseconds resolution).
Mult, Offset
Constant,
Variable,
Array, or
Expression
A multiplier and offset by which to scale the raw results of the measurement.
7.4 Full Bridges
BrFull (Dest, Reps, Range, ASlot, DiffChan, ExSlot, ExChan, MesPEx,
ExmV, RevEx, RevDiff, SettlingTime, Integ, Mult, Offset)
X = result w/mult = 1, offset = 0
X
V
V
R
R R
R
R R
X
= =
+
⎛
⎝
⎜
−
+
⎞
⎠
⎟
1000 1000
3
3 4
2
1
1
2
This Instruction applies an excitation voltage to a full bridge and makes a
differential voltage measurement of the bridge output. The resulting value
(multiplier = 1, offset = 0) is the measured voltage in millivolts divided by the
excitation voltage in volts (i.e., millivolts per volt).
BrFull6W (Dest, Reps, Range1, Range2, ASlot, DiffChan, ExSlot, ExChan,
MesPEx, ExmV, RevEx, RevDiff, SettlingTime, Integ, Mult, Offset)
X = result w/mult = 1, offset = 0
X
V
V
R
R R
R
R R
= =
+
⎛
⎝
⎜
−
+
⎞
⎠
⎟
1000 1000
2
1
3
3 4
2
1 2
This Instruction applies an excitation voltage and makes two differential
voltage measurements. The measurements are made on sequential channels.
The result is the voltage measured on the second channel (V2) divided by the
voltage measured on the first (V1). The result is 1000 times V2 / V1 or
millivolts output per volt of excitation. The connections are made so that V1 is