DynaGen GSC400 Series Kalibrasyon Yardımcı Programı Kılavuzu - Sayfa 3
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Sayfayı Yazdır
In an ideal world the output from the AC sensing circuit would be proportional to
the AC current and voltage at its input for all voltage and current levels (within a
certain random accuracy).
In practice, the un-calibrated accuracy can vary as a function of the voltage or
current level (this is called a slope error) and/or be offset by a fixed amount
(offset error). This is shown in Figure 1 to Figure 3 below.
The point of calibration is to make the measured current and voltage equal to the
input voltage and current within a certain random error tolerance.
Pivot Point
1. Calibration Theory
Error varies with
voltage/current level.
Measured Voltage/Current
Figure 1 – Pure slope error.
Constant error
Measured Voltage/Current
Figure 2 – Purse offset error.
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Pre-
calibrated
curve
Ideal Curve
Pre-
calibrated
curve
Ideal Curve