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9
Technical Principles to Aid Usage of MINISCALE PLUS
8.1 / 9.1 Technical Principles
9.1. Interpolation
For distance measuring applications, interpolation means the signal conversion of
analog input signals into digital output signals with a smaller signal period. This is
necessary as counter readings and/or position readings cannot be generated
directly from analog signals.
The interpolation factor defines the ratio of signal periods from the analog input
signal to the digital output signal.
The analog input signals (sin, cos, REF) are interpolated (red arrow) to digital
output signals (+A, +B, +R). Inverted signals are not represented:
1. Analog input signal: sin, cos, REF
2. Digital output signal: +A, +B, +Z
3. (Downstream electronics)
4. Interpolation
5. Signaling
6. Analog input signal (cos)
7. Analog input signal (sin)
8. Analog input signal (REF)
9. Digital output signal (+A)
10. Digital output signal (+B)
11. Digital output signal (+Z)
12. Measuring counter, PC, controller
for machine etc.
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