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Emissivity parameter added

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This commit is contained in:
Lukas Klass 2020-06-29 10:41:26 +02:00
parent b607dc4f35
commit 10d0c2f77c
2 changed files with 13 additions and 5 deletions
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4
docs/source/configuration/optical_components.rst
View File

@ -41,13 +41,15 @@ This component allows to model generic black body noise sources like the cosmic
.. code-block:: xml
<optical_component type="CosmicBackground" temp="2.7" temp_unit="K"/>
<optical_component type="CosmicBackground" temp="2.7" temp_unit="K" emissivity="1.0"/>
Attributes:
* | **temp:** float
| The temperature of the black body.
* | **temp_unit:** str, *optional* = "K"
| The unit of the black body's temperature. This has to be one of [``K``, ``Celsius``]. The default is ``K``.
* | **emissivity:** float, *optional*
| The emissivity of the cosmic background.
Mirror
------

10
esbo_etc/classes/optical_component/CosmicBackground.py
View File

@ -12,7 +12,7 @@ class CosmicBackground(AOpticalComponent):
"""
@u.quantity_input(temp=[u.Kelvin, u.Celsius])
def __init__(self, parent: IRadiant, temp: u.Quantity = 2.725 * u.K):
def __init__(self, parent: IRadiant, temp: u.Quantity = 2.725 * u.K, emissivity: float = 1):
"""
Initialize a new black body point source
@ -22,6 +22,8 @@ class CosmicBackground(AOpticalComponent):
The parent element of the optical component from which the electromagnetic radiation is received
temp : Quantity in Kelvin / Celsius
Temperature of the black body
emissivity : float
The spectral emissivity coefficient for the optical surface.
Returns
-------
@ -29,7 +31,7 @@ class CosmicBackground(AOpticalComponent):
# Create black body model with given temperature
bb = BlackBody(temperature=temp, scale=1 * u.W / (u.m ** 2 * u.nm * u.sr))
# Initialize super class
super().__init__(parent, 1.0, lambda wl: bb(wl))
super().__init__(parent, 1.0, lambda wl: bb(wl) * emissivity)
@staticmethod
def check_config(conf: Entry) -> Union[None, str]:
@ -49,3 +51,7 @@ class CosmicBackground(AOpticalComponent):
mes = conf.check_quantity("temp", u.K)
if mes is not None:
return mes
if hasattr(conf, "emissivity"):
mes = conf.check_float("emissivity")
if mes is not None:
return mes