Mar 21, 2019 10:11
5 yrs ago
2 viewers *
German term
Lichtdämpfungen/m
German to English
Tech/Engineering
Electronics / Elect Eng
Smoke detectors
Full sentence: "Aufgrund seiner einzigartigen Ansaugtechnik verfügt der [Alarm] über eine Alarmempfindlichkeit im Bereich von 0,005 % … 20 % Lichtdämpfungen/m."
I'm not sure how to translate "Lichtdämpfungen/m"; firstly, does "Lichtdämpfungen" mean "light attentuation", "light absoprtion", "dimming", "subdueing of light" or something else, and should it be pluralised in English? Secondodly, what is the "/m"? Is it "per minute" or a typo?
Thank you!
I'm not sure how to translate "Lichtdämpfungen/m"; firstly, does "Lichtdämpfungen" mean "light attentuation", "light absoprtion", "dimming", "subdueing of light" or something else, and should it be pluralised in English? Secondodly, what is the "/m"? Is it "per minute" or a typo?
Thank you!
Proposed translations
(English)
| 3 +1 | light attenuation per meter |
Ronald van Riet
|
| 5 | extinction coefficient [1/m] |
Johannes Gleim
|
| 3 +1 | per meter obscuration |
Herbmione Granger
|
| 4 | attenuation of light per meter |
Johannes Gleim
|
Proposed translations
+1
15 mins
Ronald van Riet
Native in English
Specializes in field
technical translator to English & Dutch
Native in: Dutch (Variant: Netherlands) 
, English (Variants: British, UK, US)
Works in: English to Dutch, Dutch to English, German to Dutch, and 1 more.
Related KudoZ points
:
22
Selected
light attenuation per meter
it seems that this is a measure of how the sensitivity of the alarm reduces as a function of the distance.
Peer comment(s):
| agree |
Kim Metzger
: https://www.miniphysics.com/light-attenuation.html http://www.hightemperaturetextile.com/download/DIN_5510-2.pd...
2 days 3 hrs
|
4 KudoZ points awarded for this answer.
+1
21 hrs
Herbmione Granger
Germany
Germany
Native in English
Germany
An American scholar based in Germany
Native in: English (Variant: US)
Works in: French to English, German to English, English
Related KudoZ points
:
8
per meter obscuration
Seems to be the normal way of expressing this. Similar to optical density but for high sensitivity detectors.
Peer comment(s):
| agree |
Kim Metzger
: https://www.degruyter.com/downloadpdf/j/cttr.2014.26.issue-2...
1 day 6 hrs
|
2 days 2 hrs
Johannes Gleim
Native in German
Specializes in field
40 years Engineer, 20 years translations
Native in: German
Works in: English to German, German to English, French to German, and 6 more.
Related KudoZ points
:
449
attenuation of light per meter
Kenne ich auch als Lichtschwächung.
Substantive attenuation of light - of a film base [TECH.] die Lichtschwächung Pl.: die Lichtschwächungen
https://dict.leo.org/englisch-deutsch/Lichtschwächung#sectio...
Lichtdämpfung zwischen 700...1700 nm durch fundamentale Materialeigenschaften und Verunreinigungen.
https://de.m.wikipedia.org/wiki/Lichtwellenleiter
Attenuation in fiber optics, also known as transmission loss, is the reduction in intensity of the light beam (or signal) as it travels through the transmission medium.
Attenuation in fiber optics, also known as transmission loss, is the reduction in intensity of the light beam (or signal) as it travels through the transmission medium.
--------------------------------------------------
Note added at 2 days 3 hrs (2019-03-23 14:01:08 GMT)
--------------------------------------------------
In physics, attenuation or, in some contexts, extinction is the gradual loss of flux intensity through a medium. For instance, dark glassesattenuate sunlight, lead attenuates X-rays, and water and air attenuate both light and soundat variable attenuation rates.
https://en.m.wikipedia.org/wiki/Attenuation
--------------------------------------------------
Note added at 2 days 8 hrs (2019-03-23 18:14:48 GMT)
--------------------------------------------------
Other expressions:
The transparency of aquatic systems is represented by a value referred to as the extinction coefficient or diffuse attenuation coefficient (Kd or η in older literature).
:
The Rayleigh scattering extinction coefficient for particle-free air is 0.012 km−1 for “green” light (γ = 0.05 μm) at sea level.29 This permits a visual range of ∼320 km.
:
Suspended particles are the most important factor in visibility reduction. In most instances, the visual quality of air is controlled by particle scattering and is characterized by the extinction coefficientbscat. The size of particles plays a crucial role in their interaction with light. Other factors are the refractive index and shape of the particles, although their effect is harder to measure and is less well understood.
https://www.sciencedirect.com/topics/earth-and-planetary-sci...
Substantive attenuation of light - of a film base [TECH.] die Lichtschwächung Pl.: die Lichtschwächungen
https://dict.leo.org/englisch-deutsch/Lichtschwächung#sectio...
Lichtdämpfung zwischen 700...1700 nm durch fundamentale Materialeigenschaften und Verunreinigungen.
https://de.m.wikipedia.org/wiki/Lichtwellenleiter
Attenuation in fiber optics, also known as transmission loss, is the reduction in intensity of the light beam (or signal) as it travels through the transmission medium.
Attenuation in fiber optics, also known as transmission loss, is the reduction in intensity of the light beam (or signal) as it travels through the transmission medium.
--------------------------------------------------
Note added at 2 days 3 hrs (2019-03-23 14:01:08 GMT)
--------------------------------------------------
In physics, attenuation or, in some contexts, extinction is the gradual loss of flux intensity through a medium. For instance, dark glassesattenuate sunlight, lead attenuates X-rays, and water and air attenuate both light and soundat variable attenuation rates.
https://en.m.wikipedia.org/wiki/Attenuation
--------------------------------------------------
Note added at 2 days 8 hrs (2019-03-23 18:14:48 GMT)
--------------------------------------------------
Other expressions:
The transparency of aquatic systems is represented by a value referred to as the extinction coefficient or diffuse attenuation coefficient (Kd or η in older literature).
:
The Rayleigh scattering extinction coefficient for particle-free air is 0.012 km−1 for “green” light (γ = 0.05 μm) at sea level.29 This permits a visual range of ∼320 km.
:
Suspended particles are the most important factor in visibility reduction. In most instances, the visual quality of air is controlled by particle scattering and is characterized by the extinction coefficientbscat. The size of particles plays a crucial role in their interaction with light. Other factors are the refractive index and shape of the particles, although their effect is harder to measure and is less well understood.
https://www.sciencedirect.com/topics/earth-and-planetary-sci...
2 days 8 hrs
Johannes Gleim
Native in German
Specializes in field
40 years Engineer, 20 years translations
Native in: German
Works in: English to German, German to English, French to German, and 6 more.
Related KudoZ points
:
449
extinction coefficient [1/m]
Further research revealed a still better and more scientific term, which deserves a separate answer: extinction coefficient.
The transparency of aquatic systems is represented by a value referred to as the extinction coefficient or diffuse attenuation coefficient (Kd or η in older literature).
:
The Rayleigh scattering extinction coefficient for particle-free air is 0.012 km−1 for “green” light (γ = 0.05 μm) at sea level.29 This permits a visual range of ∼320 km.
:
Suspended particles are the most important factor in visibility reduction. In most instances, the visual quality of air is controlled by particle scattering and is characterized by the extinction coefficient bscat. The size of particles plays a crucial role in their interaction with light. Other factors are the refractive index and shape of the particles, although their effect is harder to measure and is less well understood.
https://www.sciencedirect.com/topics/earth-and-planetary-sci...
The coefficient k in this equation is known as the extinction coefficient. In the example we have just presented, k=0.035 per meter
https://books.google.de/books?id=lE4HUmEZzhIC&pg=PA92&lpg=PA...
The transparency of aquatic systems is represented by a value referred to as the extinction coefficient or diffuse attenuation coefficient (Kd or η in older literature).
:
The Rayleigh scattering extinction coefficient for particle-free air is 0.012 km−1 for “green” light (γ = 0.05 μm) at sea level.29 This permits a visual range of ∼320 km.
:
Suspended particles are the most important factor in visibility reduction. In most instances, the visual quality of air is controlled by particle scattering and is characterized by the extinction coefficient bscat. The size of particles plays a crucial role in their interaction with light. Other factors are the refractive index and shape of the particles, although their effect is harder to measure and is less well understood.
https://www.sciencedirect.com/topics/earth-and-planetary-sci...
The coefficient k in this equation is known as the extinction coefficient. In the example we have just presented, k=0.035 per meter
https://books.google.de/books?id=lE4HUmEZzhIC&pg=PA92&lpg=PA...
Discussion
"Obscuration (%/ft) This is the beam obscuration computed from the % transmittance and the path length of 5.00 ft. The relative combined standard uncertainty is 4.0 %."
https://www.nist.gov/el/fire-research-division-73300/enginee...
Example aspirating smoke detectors:
http://resource.boschsecurity.us/documents/FCS_320_TP_Operat...
https://www.controlfiresystems.com/media/catalog/pdf/Vesda.p...
"Ansprechempfindlichkeit // Die Ansaugrauchmelder der Serie FAS‑420‑TM haben eine Ansprechempfindlichkeit von 0,5 %/m bis zu 2 %/m Lichttrübung. Die Ansprechschwelle kann mit FAS-ASD-DIAG in Schritten von 0,1 %/m eingestellt werden. Mittels Rauchpegelanzeige wird beim Modell FAS‑420‑TM‑RVB eine Anzeigesensibilität von 0,05 %/m bis zu 0,2 %/m Lichttrübung erreicht."
http://resource.boschsecurity.com/documents/FAS_420_TM_Data_...