VOA

VOA module for qosst-hal.

class qosst_hal.voa.FakeVOA(_location: Any, **_kwargs)

FakeVOA, to use as a dummy VOA.

__init__(_location: Any, **_kwargs) → None

Parameters:

_location (Any) – ignored parameters.

__str__() → str

Return str(self).

close() → None

Close the fake hardware (do nothing).

open() → None

Open the fake hardware (do nothing).

set_value(value: float) → None

Set the value.

Parameters:

value (float) – value to be set.

value: float

Value of the VOA (no unit, as it’s dummy).

class qosst_hal.voa.GenericVOA(_location: Any, **_kwargs)

A Generic VOA class.

A VOA class should have the following methods:

• set_value: set value for the VOA, in some defined units.

• open: open the VOA.

• close: close the VOA.

__init__(_location: Any, **_kwargs) → None

All parameters are ignored.

__str__() → str

Return str(self).

abstract set_value(value: float) → None

Set VOA value

Parameters:

value (float) – VOA value in some predefined unit.