HBM PMX Bedienungsanleitung Seite 91

Quick Start
6 Signal generator (signalGen)
Function
Inputs
Outputs
Parameters
Default
Exception handling
The noise signal is generated from a pseudo-random number sequence with
31
period 2 .
The counter counts up with the data rate (default 19200 Hz). Range: –amp-
litude to +amplitude (with offset = 0).
Do not select a frequency greater than data rate/10 to obtain an acceptable
waveform.
7 Two-Point Scaler (scale2)
Function
Inputs
Outputs
Parameters
Default
Exception handling
A3257−2.0 en/de/fr
Generates a periodic signal
Generated signal out0
- Waveform [sine, square, noise, counter, constant,
triangle]
- Frequency 0 .. data rate/4 (default 19200/4 Hz =
4800 Hz) (only effective with sine, square, triangle)
- Amplitude
- Offset
Sine, amplitude 1.0, offset 0.0, frequency 100 Hz
If out of range, Not-a-Number is output.
Linear scaling of a signal
out0 = m ∗ in0 + b
m = y2 − y1 / x2 - x1
b = y2 − m ∗ x2
Scaled signal out0
- Two data points (x1|y1) and (x2|y2)
x: Input values
y: Output values
x0=y0=0; x1=y1=1; i.e. m=1, b=0
If out of range, Not-a-Number is output. E.g.
-
with
in0
with x1 = x2:
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