pcdsdevices.lasers.qmini.QminiWithEvr

class pcdsdevices.lasers.qmini.QminiWithEvr(prefix, *args, evr_pv=None, evr_ch=None, **kwargs)

A class for Qmini spectrometers that use an EVR for hardware triggering.

Ophyd Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
status	EpicsSignalRO	:STATUS		normal	Inherited from QminiSpectrometer
temperature	EpicsSignalRO	:TEMP		config	Inherited from QminiSpectrometer
exposure	EpicsSignal	:GET_EXPOSURE_TIME		config	Inherited from QminiSpectrometer
trig_mode	EpicsSignal	:TRIG_MODE_RBV		config	Inherited from QminiSpectrometer
trig_delay	EpicsSignal	:GET_TRIG_DELAY		config	Inherited from QminiSpectrometer
trig_pin	EpicsSignal	:TRIG_PIN_RBV		config	Inherited from QminiSpectrometer
trig_edge	EpicsSignal	:TRIG_EDGE_RBV		config	Inherited from QminiSpectrometer
trig_enable	EpicsSignal	:GET_TRIG_ENABLE		config	Inherited from QminiSpectrometer
acquisition_mode	EpicsSignal	:SOFT_TRIGGER_MODE		config	Inherited from QminiSpectrometer
exposures_to_average	EpicsSignal	:SET_AVG_CNT		config	Inherited from QminiSpectrometer
force_trig	EpicsSignal	:START_EXPOSURE.PROC		config	Inherited from QminiSpectrometer
reset	EpicsSignal	:CLEAR_SPECTROMETER		config	Inherited from QminiSpectrometer
spectrum	EpicsSignalRO	:SPECTRUM		normal	Inherited from QminiSpectrometer
wavelengths	EpicsSignalRO	:WAVELENGTHS		normal	Inherited from QminiSpectrometer
model	EpicsSignalRO	:MODEL_CODE		config	Inherited from QminiSpectrometer
serial_number	EpicsSignalRO	:SERIAL_NUMBER		config	Inherited from QminiSpectrometer
adjust_offset	EpicsSignal	:ADJUST_OFFSET		omitted	Inherited from QminiSpectrometer
correct_nonlinearity	EpicsSignal	:CORRECT_NONLINEARITY		omitted	Inherited from QminiSpectrometer
remove_bad_pixels	EpicsSignal	:REMOVE_BAD_PIXELS		omitted	Inherited from QminiSpectrometer
subtract_dark	EpicsSignal	:SUBTRACT_DARK		omitted	Inherited from QminiSpectrometer
remove_temp_bad_pixels	EpicsSignal	:REMOVE_TEMP_BAD_PIXELS		omitted	Inherited from QminiSpectrometer
normalize_exposure	EpicsSignal	:NORMALIZE_EXPOSURE		omitted	Inherited from QminiSpectrometer
sensitivity_cal	EpicsSignal	:SENSITIVITY_CAL		omitted	Inherited from QminiSpectrometer
correct_prnu	EpicsSignal	:CORRECT_PRNU		omitted	Inherited from QminiSpectrometer
additional_filtering	EpicsSignal	:ADDITIONAL_FILTERING		omitted	Inherited from QminiSpectrometer
scale_to_16_bit	EpicsSignal	:SCALE_TO_16BIT		omitted	Inherited from QminiSpectrometer
set_processing_steps	EpicsSignal	:SET_PROCESSING_STEPS		omitted	Inherited from QminiSpectrometer
get_processing_steps	EpicsSignalRO	:GET_PROCESSING_STEPS		omitted	Inherited from QminiSpectrometer
fit_on	EpicsSignal	:FIT_ON		config	Inherited from QminiSpectrometer
fit_width	EpicsSignal	:WIDTH		config	Inherited from QminiSpectrometer
w0_guess	EpicsSignal	:W0_GUESS		config	Inherited from QminiSpectrometer
w0_fit	EpicsSignalRO	:W0_FIT		normal	Inherited from QminiSpectrometer
fit_fwhm	EpicsSignalRO	:FWHM		config	Inherited from QminiSpectrometer
fit_amplitude	EpicsSignalRO	:AMPLITUDE		config	Inherited from QminiSpectrometer
fit_stdev	EpicsSignalRO	:STDEV		config	Inherited from QminiSpectrometer
fit_chisq	EpicsSignalRO	:CHISQ		config	Inherited from QminiSpectrometer
save_spectrum	AttributeSignal			omitted	Inherited from QminiSpectrometer
file_dest	Signal			omitted	Inherited from QminiSpectrometer
event_code (FCpt)	EpicsSignal	{self._evr_pv}:TRIG{self._evr_ch}:EC_RBV		config
evr_width (FCpt)	EpicsSignal	{self._evr_pv}:TRIG{self._evr_ch}:BW_TWIDCALC		config
evr_delay (FCpt)	EpicsSignal	{self._evr_pv}:TRIG{self._evr_ch}:BW_TDES		config

Methods

configure(d: Dict[str, Any]) → Tuple[Dict[str, Any], Dict[str, Any]]

Configure the device for something during a run

This default implementation allows the user to change any of the configuration_attrs. Subclasses might override this to perform additional input validation, cleanup, etc.

Parameters:

d (dict) – The configuration dictionary. To specify the order that the changes should be made, use an OrderedDict.

Returns:

• (old, new) tuple of dictionaries

• Where old and new are pre- and post-configure configuration states.

describe() → OrderedDictType[str, Dict[str, Any]]

Provide schema and meta-data for read().

This keys in the OrderedDict this method returns must match the keys in the OrderedDict return by read().

This provides schema related information, (ex shape, dtype), the source (ex PV name), and if available, units, limits, precision etc.

Returns:

data_keys (OrderedDict) – The keys must be strings and the values must be dict-like with the event_model.event_descriptor.data_key schema.

get(**kwargs)

Get the value of all components in the device

Keyword arguments are passed onto each signal.get(). Components beginning with an underscore will not be included.

read() → OrderedDictType[str, Dict[str, Any]]

Read data from the device.

This method is expected to be as instantaneous as possible, with any substantial acquisition time taken care of in trigger().

The OrderedDict returned by this method must have identical keys (in the same order) as the OrderedDict returned by describe().

By convention, the first key in the return is the ‘primary’ key and maybe used by heuristics in bluesky.

The values in the ordered dictionary must be dict (-likes) with the keys {'value', 'timestamp'}. The 'value' may have any type, the timestamp must be a float UNIX epoch timestamp in UTC.

Returns:

data (OrderedDict) – The keys must be strings and the values must be dict-like with the keys {'value', 'timestamp'}

read_configuration() → OrderedDictType[str, Dict[str, Any]]

Dictionary mapping names to value dicts with keys: value, timestamp

To control which fields are included, change the Component kinds on the device, or modify the configuration_attrs list.

save_data(file_dest: str = '')

Save the wavelength and spectrum PVs to a text file

classmethod set_defaults(*, connection_timeout=10.0)

Set class-wide defaults for device communications

This may be called only before any instances of Device are made.

This setting applies to the class it is called on and all its subclasses. For example,

>>> Device.set_defaults(...)

will apply to any Device subclass.

Parameters:

connection_timeout (float, optional) – Time (seconds) allocated for establishing a connection with the IOC.

Raises:

RuntimeError – If called after EpicsSignalBase has been instantiated for the first time.

stop(*, success=False)

Stop the Device and all (instantiated) subdevices

summary()

trigger() → StatusBase

Trigger the device and return status object.

This method is responsible for implementing ‘trigger’ or ‘acquire’ functionality of this device.

If there is an appreciable time between triggering the device and it being able to be read (via the read() method) then this method is also responsible for arranging that the StatusBase object returned by this method is notified when the device is ready to be read.

If there is no delay between triggering and being readable, then this method must return a StatusBase object which is already completed.

Returns:

status (StatusBase) – StatusBase object which will be marked as complete when the device is ready to be read.

Attributes

configuration_attrs

connected

connection_timeout

hints

kind

subscriptions: ClassVar[FrozenSet[str]] = frozenset({'acq_done'})