Smu#
Device class for a Source Measurement Unit
property is_output_on#
Queries the output state.
Returns#
| Type | Description |
|---|---|
| bool | True if output is on otherwise False . |
Example#
outputState = smu.is_output_on
property max_current_in_max_voltage_range#
The largest programmable current in the largest voltage range.
Returns#
| Type | Description |
|---|---|
| float | The largest programmable current in amperes. |
Example#
current = smu.max_current_in_max_voltage_range
property max_voltage#
The largest programmable voltage.
Returns#
| Type | Description |
|---|---|
| float | The largest programmable voltage in volts. |
Example#
voltage = smu.max_voltage
property name#
The name assigned to the device (channel) in the device manager.
Returns#
| Type | Description |
|---|---|
| str | The name assigned to the device (channel) in the device manager. |
method check_voltage_and_current(voltage: float, current: float, pulse_mode: bool)#
Checks if the current and voltage settings are valid. Raises an error if the settings are not valid.
Parameters#
| Name | Description |
|---|---|
| voltage | The voltage settings in volts to be checked. |
| current | The current settings in amperes to be checked. |
| pulse_mode | Set this parameter to True if the settings shall be checked for pulse mode. |
Example#
smu.check_voltage_and_current(5.0, 10E-3, False)
method get_current_bias()#
Queries the programmed current bias.
Returns#
| Type | Description |
|---|---|
| float | Programmed current bias in amperes. |
Example#
current = smu.get_current_bias()
method get_max_current(voltage_range: float)#
Queries the largest current for a specific voltage range.
Parameters#
| Name | Description |
|---|---|
| voltage_range | The voltage range for which the current is to be queried. |
Returns#
| Type | Description |
|---|---|
| float | The largest current for the specific voltage range. |
Example#
current = smu.get_max_current(20.0)
method get_voltage_bias()#
Queries the programmed voltage bias.
Returns#
| Type | Description |
|---|---|
| float | Programmed voltage bias in volts. |
Example#
voltage = smu.get_voltage_bias()
method measure_current()#
Measures the output current.
Returns#
| Type | Description |
|---|---|
| float | Measured current in amperes. |
Example#
current = smu.measure_current()
method measure_iv()#
Measures the output current and voltage simultaneously.
Returns#
| Type | Description |
|---|---|
| float | Measured current in amperes. |
| float | Measured voltage in volts. |
Example#
current, voltage = smu.measure_iv()
method measure_voltage()#
Measures the output voltage.
Returns#
| Type | Description |
|---|---|
| float | Measured voltage in volts. |
Example#
voltage = smu.measure_voltage()
method output_off()#
Turn SMU output off.
Example#
smu.output_off()
method output_on()#
Turn SMU output on.
Example#
smu.output_on()
method remote_sense(is_enabled: bool)#
Set sensing to local or remote.
Parameters#
| Name | Description |
|---|---|
| is_enabled | True means remote sense (4 wire), False means local sense (2 wire) |
Example#
smu.remote_sense(True)
method reset()#
Resets all electrical settings to their default settings.
Example#
smu.reset()
method reset_output()#
Turns off the output and resets all electrical settings to their default settings.
Example#
smu.reset_output()
method set_current(current: float, voltage_compliance: float)#
Set output mode to current and sense range to auto.
Parameters#
| Name | Description |
|---|---|
| current | The new output current in amperes. |
| voltage_compliance | The new voltage limit in volts. |
Example#
smu.set_current(10E-3, 5.0)
method set_current_fixed_sense_range(current: float, voltage_compliance: float)#
Set output mode to current with fixed sense range.
Parameters#
| Name | Description |
|---|---|
| current | Output current in amperes |
| voltage_compliance | Voltage limit in volts |
Example#
smu.set_current_fixed_sense_range(10E-3, 5.0)
method set_voltage(voltage: float, current_compliance: float)#
Set output mode to voltage and sense range to auto.
Parameters#
| Name | Description |
|---|---|
| voltage | The new output voltage in volts. |
| current_compliance | The new current limit in amperes. |
Example#
smu.set_voltage(5.0, 10E-3)
method set_voltage_fixed_sense_range(voltage: float, current_compliance: float)#
Set output mode to voltage with fixed sense range.
Parameters#
| Name | Description |
|---|---|
| voltage | The new output voltage in volts. |
| current_compliance | The new current limit in amperes. |
Example#
smu.set_voltage_fixed_sense_range(5.0, 10E-3)