test_channel_creation.py 文件源码

def test_create_ai_voltage_chan(self, x_series_device, seed):
        # Reset the pseudorandom number generator with seed.
        random.seed(seed)

        ai_phys_chan = random.choice(x_series_device.ai_physical_chans).name

        with nidaqmx.Task() as task:
            ai_channel = task.ai_channels.add_ai_voltage_chan(
                ai_phys_chan, name_to_assign_to_channel="VoltageChannel",
                terminal_config=TerminalConfiguration.NRSE, min_val=-20.0,
                max_val=20.0, units=VoltageUnits.FROM_CUSTOM_SCALE,
                custom_scale_name="double_gain_scale")

            assert ai_channel.physical_channel.name == ai_phys_chan
            assert ai_channel.name == "VoltageChannel"
            assert ai_channel.ai_term_cfg == TerminalConfiguration.NRSE
            assert ai_channel.ai_min == -20.0
            assert ai_channel.ai_max == 20.0
            assert (ai_channel.ai_voltage_units ==
                    VoltageUnits.FROM_CUSTOM_SCALE)
            assert (ai_channel.ai_custom_scale.name ==
                    "double_gain_scale")