DS1000D Rigol Waveform Examples
Scott Prahl
Aug 2023
This notebook illustrates shows how to extract signals from a .wfm file created by a the Rigol DS1102D scope.
If RigolWFM is not installed, uncomment the following cell (i.e., delete the #) and run (shift-enter)
[1]:
#!pip install --user RigolWFM
[1]:
import numpy as np
import matplotlib.pyplot as plt
try:
import RigolWFM.wfm as rigol
except ModuleNotFoundError:
print('RigolWFM not installed. To install, uncomment and run the cell above.')
print('Once installation is successful, rerun this cell again.')
repo = "https://github.com/scottprahl/RigolWFM/raw/master/wfm/"
A list of Rigol scopes in the DS1000D family is:
[2]:
print(rigol.DS1000D_scopes[:])
['D', '1000D', 'DS1000D', 'DS1102D', 'DS1052D']
DS1102D
We will start with a .wfm file from a Rigol DS1102D scope.
Now for the .wfm data
First a textual description.
[3]:
# raw=true is needed because this is a binary file
wfm_url = "https://github.com/scottprahl/RigolWFM/raw/master/wfm/DS1102D-A.wfm" + "?raw=true"
w = rigol.Wfm.from_url(wfm_url, '1000D')
description = w.describe()
print(description)
downloading 'https://github.com/scottprahl/RigolWFM/raw/master/wfm/DS1102D-A.wfm?raw=true'
General:
File Model = wfm1000d
User Model = 1000D
Parser Model = wfm1000d
Firmware = unknown
Filename = DS1102D-A.wfm
Channels = [1, 2]
Channel 1:
Coupling = unknown
Scale = 1.00 V/div
Offset = -3.00 V
Probe = 1X
Inverted = False
Time Base = 500.000 µs/div
Offset = 432.000 µs
Delta = 10.000 µs/point
Points = 1024
Count = [ 1, 2, 3 ... 1023, 1024]
Raw = [ 0, 80, 195 ... 80, 80]
Times = [-4.688 ms,-4.678 ms,-4.668 ms ... 5.542 ms, 5.552 ms]
Volts = [ 8.08 V, 4.88 V,280.00 mV ... 4.88 V, 4.88 V]
Channel 2:
Coupling = unknown
Scale = 2.00 V/div
Offset = -4.64 V
Probe = 1X
Inverted = False
Time Base = 500.000 µs/div
Offset = 432.000 µs
Delta = 10.000 µs/point
Points = 1024
Count = [ 1, 2, 3 ... 1023, 1024]
Raw = [ 80, 80, 80 ... 183, 183]
Times = [-4.688 ms,-4.678 ms,-4.668 ms ... 5.542 ms, 5.552 ms]
Volts = [ 8.40 V, 8.40 V, 8.40 V ... 160.00 mV,160.00 mV]
[13]:
ch = w.channels[0]
plt.subplot(211)
plt.plot(ch.times*1000, ch.volts, color='green')
plt.title("DS1102D-A from .wfm file")
plt.ylabel("Volts (V)")
#plt.xlim(-0.6,0.6)
plt.xticks([])
ch = w.channels[1]
plt.subplot(212)
plt.plot(ch.times*1000, ch.volts, color='red')
plt.xlabel("Time (ms)")
plt.ylabel("Volts (V)")
#plt.xlim(-0.6,0.6)
plt.show()
DS1102D
First the .csv data
Let’s look at what the accompanying .csv data looks like.
[5]:
filename = "DS1102D-A.csv"
csv_data = np.genfromtxt(repo+filename, delimiter=',', skip_header=2).T
plt.plot(csv_data[0]*1e6,csv_data[1], color='green')
plt.title(filename)
plt.ylabel("Volts (V)")
plt.show()
[8]:
ch = w.channels[0]
plt.plot(csv_data[0]*1e3,csv_data[1], color='green')
plt.title(filename)
plt.ylabel("Volts (V)")
plt.xlabel("Time (ms)")
plt.xlim(-4,6)
plt.show()
Now for the .wfm data
First a textual description.
[9]:
# raw=true is needed because this is a binary file
wfm_url = "https://github.com/scottprahl/RigolWFM/raw/master/wfm/DS1102D-A.wfm" + "?raw=true"
w = rigol.Wfm.from_url(wfm_url, '1000D')
description = w.describe()
print(description)
downloading 'https://github.com/scottprahl/RigolWFM/raw/master/wfm/DS1102D-A.wfm?raw=true'
General:
File Model = wfm1000d
User Model = 1000D
Parser Model = wfm1000d
Firmware = unknown
Filename = DS1102D-A.wfm
Channels = [1, 2]
Channel 1:
Coupling = unknown
Scale = 1.00 V/div
Offset = -3.00 V
Probe = 1X
Inverted = False
Time Base = 500.000 µs/div
Offset = 432.000 µs
Delta = 10.000 µs/point
Points = 1024
Count = [ 1, 2, 3 ... 1023, 1024]
Raw = [ 0, 80, 195 ... 80, 80]
Times = [-4.688 ms,-4.678 ms,-4.668 ms ... 5.542 ms, 5.552 ms]
Volts = [ 8.08 V, 4.88 V,280.00 mV ... 4.88 V, 4.88 V]
Channel 2:
Coupling = unknown
Scale = 2.00 V/div
Offset = -4.64 V
Probe = 1X
Inverted = False
Time Base = 500.000 µs/div
Offset = 432.000 µs
Delta = 10.000 µs/point
Points = 1024
Count = [ 1, 2, 3 ... 1023, 1024]
Raw = [ 80, 80, 80 ... 183, 183]
Times = [-4.688 ms,-4.678 ms,-4.668 ms ... 5.542 ms, 5.552 ms]
Volts = [ 8.40 V, 8.40 V, 8.40 V ... 160.00 mV,160.00 mV]
[11]:
ch = w.channels[0]
plt.plot(ch.times*1000, ch.volts, color='green')
plt.title("DS1102D-A from .wfm file")
plt.ylabel("Volts (V)")
plt.xlabel("Time (ms)")
plt.show()
[12]:
ch = w.channels[0]
plt.plot(ch.times*1e3, ch.volts, color='green')
plt.title("DS10102D-A from .wfm file")
plt.ylabel("Volts (V)")
plt.xlabel("Time (ms)")
plt.xlim(-4,6)
plt.show()
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