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Instruments > In Situ/Laboratory Instruments > Temperature/Humidity Sensors > VCSEL Hygrometer

Preferred term

VCSEL Hygrometer  

Definition

  • The VCSEL hygrometer employs tunable diode laser absorption spectroscopy to determine the water vapor number density over a dew-point range of -90 to +30º C. It reports the water vapor number density at 25 samples per second. From the number density other humidity-related parameters such as dew/frost point, mixing ratio, etc. are derived. It is mounted on a GV aperture plate, weighs 3.2 kg and draws less than 20W from 120 VAC, 60 Hz. (en)

Broader concept

Change note

  • 2021-03-01 16:22:07.0 [sritz] Insert Concept add broader relation (VCSEL Hygrometer [c2707664-1df9-4716-9fb7-2bac630b815c,560896] - Temperature/Humidity Sensors [bb5a51d9-0ded-40ed-9bfd-7cb0e788f1a5,545515]);
  • 2021-03-01 16:23:05.0 [sritz] insert AltLabel (id: null category: primary text: Vertical Cavity Surface Emitting Laser Hygrometer language code: en); insert Definition (id: null text: The VCSEL hygrometer employs tunable diode laser absorption spectroscopy to determine the water vapor number density over a dew-point range of -90 to +30º C. It reports the water vapor number density at 25 samples per second. From the number density other humidity-related parameters such as dew/frost point, mixing ratio, etc. are derived. It is mounted on a GV aperture plate, weighs 3.2 kg and draws less than 20W from 120 VAC, 60 Hz. language code: en);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/c2707664-1df9-4716-9fb7-2bac630b815c

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