Camera#

class esis.optics.Camera(sensor=None, gain=<Quantity 2.5 electron / DN>, bits_adc=16, timedelta_exposure=<Quantity 10. s>, timedelta_exposure_min=<Quantity 2. s>, timedelta_exposure_max=<Quantity 600. s>, timedelta_exposure_step=<Quantity 100. ms>, timedelta_transfer=<Quantity 50. ms>, timedelta_readout=<Quantity 1.1 s>, timedelta_sync=<Quantity 0. s>, channel='', channel_trigger=0, *, axis_tap_x='tap_x', axis_tap_y='tap_y')[source]#

Bases: Printable, Camera

A model of the cameras developed by MSFC.

Attributes

`axis_tap_x`	The name of the logical axis corresponding to changing horizontal tap.
`axis_tap_y`	The name of the logical axis corresponding to changing vertical tap.
`bits_adc`	The number of bits supported by the analog-to-digital converter
`channel`	Human-readable name of each channel of this camera array.
`channel_trigger`	The master channel which triggers the other channels to start exposing.
`gain`	The conversion factor between electrons and DN.
`sensor`	A model of the sensor used by this camera to capture light.
`surface`	Represent this object as an `optika` surface.
`timedelta_exposure`	The current exposure length.
`timedelta_exposure_max`	The maximum exposure length supported by this camera
`timedelta_exposure_min`	The minimum exposure length supported by this camera.
`timedelta_exposure_step`	The smallest possible change in exposure length supported by this camera.
`timedelta_readout`	The time required to perform a readout operation.
`timedelta_sync`	The synchronization error between the different channels.
`timedelta_transfer`	The time required to transfer the exposed pixels into the storage region.

Methods

`__init__`([sensor, gain, bits_adc, ...])
`calibrate_temperature_adc_1`(value)	Convert the ADC 1 temperature from counts to physical units.
`calibrate_temperature_adc_234`(value)	Convert the ADC 2, 3, or 4 temperature from counts to physical units.
`calibrate_temperature_fpga`(value)	Convert the FPGA temperature from counts to physical units.
`calibrate_timedelta_exposure`(value)	Convert the exposure time from counts to physical units.
`calibrate_voltage_fpga`(value)	Convert the FPGA voltage from counts to physical units.
`dn_to_electrons`(a)	Convert an array from DN to electrons by multiplying by `gain`.
`to_string`([prefix])	Public-facing version of the `__repr__` method that allows for defining a prefix string, which can be used to calculate how much whitespace to add to the beginning of each line of the result.

Inheritance Diagram

Parameters:

sensor (None | Sensor)
gain (None | Quantity | AbstractScalar)
bits_adc (int)
timedelta_exposure (Quantity)
timedelta_exposure_min (Quantity)
timedelta_exposure_max (Quantity)
timedelta_exposure_step (Quantity)
timedelta_transfer (Quantity)
timedelta_readout (Quantity)
timedelta_sync (Quantity)
channel (str | AbstractScalar)
channel_trigger (int)
axis_tap_x (str)
axis_tap_y (str)

classmethod calibrate_temperature_adc_1(value)#

Convert the ADC 1 temperature from counts to physical units.

Parameters:: value (int) – The ADC 1 temperature in counts.
Return type:: Quantity

classmethod calibrate_temperature_adc_234(value)#

Convert the ADC 2, 3, or 4 temperature from counts to physical units.

Parameters:: value (int) – The ADC 2, 3, or 4 temperature in counts.
Return type:: Quantity

classmethod calibrate_temperature_fpga(value)#

Convert the FPGA temperature from counts to physical units.

Parameters:: value (int) – The FPGA temperature in counts.
Return type:: Quantity

classmethod calibrate_timedelta_exposure(value)#

Convert the exposure time from counts to physical units.

Parameters:: value (int) – The exposure time in counts.
Return type:: Quantity

classmethod calibrate_voltage_fpga(value)#

Convert the FPGA voltage from counts to physical units.

Parameters:: value (int) – The FPGA voltage in counts.
Return type:: Quantity

dn_to_electrons(a)#

Convert an array from DN to electrons by multiplying by gain.

Parameters:: a (Quantity | AbstractArray)
Return type:: AbstractArray

to_string(prefix=None)#

Public-facing version of the __repr__ method that allows for defining a prefix string, which can be used to calculate how much whitespace to add to the beginning of each line of the result.

Parameters:: prefix (None | str) – an optional string, the length of which is used to calculate how much whitespace to add to the result.
Return type:: str

axis_tap_x: str = 'tap_x'#: The name of the logical axis corresponding to changing horizontal tap.

axis_tap_y: str = 'tap_y'#: The name of the logical axis corresponding to changing vertical tap.

bits_adc: int = 16#: The number of bits supported by the analog-to-digital converter

channel: str | AbstractScalar = ''#: Human-readable name of each channel of this camera array.

channel_trigger: int = 0#: The master channel which triggers the other channels to start exposing.

gain: None | Quantity | AbstractScalar = <Quantity 2.5 electron / DN>#

The conversion factor between electrons and DN.

This is usually tap-dependent and contains axis_tap_x and axis_tap_y dimensions.

sensor: None | Sensor = None#

A model of the sensor used by this camera to capture light.

If None (the default), esis.optics.Sensor() will be used.

property surface: AbstractImagingSensor#: Represent this object as an optika surface.

timedelta_exposure: Quantity = <Quantity 10. s>#: The current exposure length.

timedelta_exposure_max: Quantity = <Quantity 600. s>#: The maximum exposure length supported by this camera

timedelta_exposure_min: Quantity = <Quantity 2. s>#: The minimum exposure length supported by this camera.

timedelta_exposure_step: Quantity = <Quantity 100. ms>#: The smallest possible change in exposure length supported by this camera.

timedelta_readout: Quantity = <Quantity 1.1 s>#: The time required to perform a readout operation.

timedelta_sync: Quantity = <Quantity 0. s>#: The synchronization error between the different channels.

timedelta_transfer: Quantity = <Quantity 50. ms>#: The time required to transfer the exposed pixels into the storage region.

Camera#

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