Examples¶
nidmm_fetch_waveform.py¶
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | #!/usr/bin/python
import argparse
import nidmm
import sys
import time
def example(resource_name, options, function, range, points, rate):
with nidmm.Session(resource_name=resource_name, options=options) as session:
session.configure_waveform_acquisition(measurement_function=nidmm.Function[function], range=range, rate=rate, waveform_points=points)
with session.initiate():
while True:
time.sleep(0.1)
backlog, acquisition_state = session.read_status()
if acquisition_state == nidmm.AcquisitionStatus.FINISHED_WITH_NO_BACKLOG:
break
measurements = session.fetch_waveform(array_size=backlog)
print(measurements)
def _main(argsv):
parser = argparse.ArgumentParser(description='Performs a waveform acquisition using the NI-DMM API.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-n', '--resource-name', default='PXI1Slot2', help='Resource name of a National Instruments Digital Multimeter.')
parser.add_argument('-f', '--function', default='WAVEFORM_VOLTAGE', choices=nidmm.Function.__members__.keys(), type=str.upper, help='Measurement function.')
parser.add_argument('-r', '--range', default=10, type=float, help='Measurement range.')
parser.add_argument('-p', '--points', default=10, type=int, help='Specifies the number of points to acquire before the waveform acquisition completes.')
parser.add_argument('-s', '--rate', default=1000, type=int, help='Specifies the rate of the acquisition in samples per second.')
parser.add_argument('-op', '--option-string', default='', type=str, help='Option string')
args = parser.parse_args(argsv)
example(args.resource_name, args.option_string, args.function, args.range, args.points, args.rate)
def main():
_main(sys.argv[1:])
def test_example():
options = {'simulate': True, 'driver_setup': {'Model': '4082', 'BoardType': 'PXIe', }, }
example('PXI1Slot2', options, 'WAVEFORM_VOLTAGE', 10, 10, 1000)
def test_main():
cmd_line = ['--option-string', 'Simulate=1, DriverSetup=Model:4082; BoardType:PXIe', ]
_main(cmd_line)
if __name__ == '__main__':
main()
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nidmm_measurement.py¶
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | #!/usr/bin/python
import argparse
import nidmm
import sys
def example(resource_name, option_string, function, range, digits):
with nidmm.Session(resource_name=resource_name, options=option_string) as session:
session.configure_measurement_digits(measurement_function=nidmm.Function[function], range=range, resolution_digits=digits)
print(session.read())
def _main(argsv):
supported_functions = list(nidmm.Function.__members__.keys())
parser = argparse.ArgumentParser(description='Performs a single measurement using the NI-DMM API.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-n', '--resource-name', default='PXI1Slot2', help='Resource name of a National Instruments Digital Multimeter.')
parser.add_argument('-f', '--function', default=supported_functions[0], choices=supported_functions, type=str.upper, help='Measurement function.')
parser.add_argument('-r', '--range', default=10, type=float, help='Measurement range.')
parser.add_argument('-d', '--digits', default=6.5, type=float, help='Digits of resolution for the measurement.')
parser.add_argument('-op', '--option-string', default='', type=str, help='Option string')
args = parser.parse_args(argsv)
example(args.resource_name, args.option_string, args.function, args.range, args.digits)
def main():
_main(sys.argv[1:])
def test_example():
options = {'simulate': True, 'driver_setup': {'Model': '4082', 'BoardType': 'PXIe', }, }
example('PXI1Slot2', options, 'DC_VOLTS', 10, 6.5)
def test_main():
cmd_line = ['--option-string', 'Simulate=1, DriverSetup=Model:4082; BoardType:PXIe', ]
_main(cmd_line)
if __name__ == '__main__':
main()
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nidmm_multi_point_measurement.py¶
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | #!/usr/bin/python
import argparse
import nidmm
import sys
def example(resource_name, options, function, range, digits, samples, triggers):
with nidmm.Session(resource_name=resource_name, options=options) as session:
session.configure_measurement_digits(measurement_function=nidmm.Function[function], range=range, resolution_digits=digits)
session.configure_multi_point(trigger_count=triggers, sample_count=samples)
measurements = session.read_multi_point(array_size=samples)
print('Measurements: ', measurements)
def _main(argsv):
parser = argparse.ArgumentParser(description='Performs a multipoint measurement using the NI-DMM API.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-n', '--resource-name', default='PXI1Slot2', help='Resource name of a National Instruments Digital Multimeter.')
parser.add_argument('-f', '--function', default='DC_VOLTS', choices=nidmm.Function.__members__.keys(), type=str.upper, help='Measurement function.')
parser.add_argument('-r', '--range', default=10, type=float, help='Measurement range.')
parser.add_argument('-d', '--digits', default=6.5, type=float, help='Digits of resolution for the measurement.')
parser.add_argument('-s', '--samples', default=10, type=int, help='The number of measurements the DMM makes.')
parser.add_argument('-t', '--triggers', default=1, type=int, help='Sets the number of triggers you want the DMM to receive before returning to the Idle state.')
parser.add_argument('-op', '--option-string', default='', type=str, help='Option string')
args = parser.parse_args(argsv)
example(args.resource_name, args.option_string, args.function, args.range, args.digits, args.samples, args.triggers)
def main():
_main(sys.argv[1:])
def test_example():
options = {'simulate': True, 'driver_setup': {'Model': '4082', 'BoardType': 'PXIe', }, }
example('PXI1Slot2', options, 'DC_VOLTS', 10, 6.5, 10, 1)
def test_main():
cmd_line = ['--option-string', 'Simulate=1, DriverSetup=Model:4082; BoardType:PXIe', ]
_main(cmd_line)
if __name__ == '__main__':
main()
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