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Instruments > In Situ/Laboratory Instruments > Chemical Meters/Analyzers > CAPS PMex Monitor

Preferred term

CAPS PMex Monitor  

Definition

  • The CAPS PM monitor provides a measurement of the optical extinction (the sum of scattering and absorption) of an ambient sample of particles. Currently, there is a choice of 5 different wavelengths – blue (450 nm), green (530 nm), red (630 nm), far red (660 nm ) and near infrared (780 nm, at additional cost) – which match the spectral bands of most other particle optical properties measurement equipment. A multi wave instrument is also available. These instruments have a 1 second time response and provide a level of detection (3σ) less than 2 Mm-1 with 1 second integration time. These monitors are entirely self-contained, requiring no consumables such as zero air and can be operated autonomously for over 12 months using on-board data storage if one second averaging is chosen. (en)

Broader concept

Change note

  • 2021-08-09 15:12:09.0 [tstevens] Insert Concept add broader relation (CAPS PMex Monitor [cfef6030-aba1-47b6-b643-e826c5b88468,706562] - Chemical Meters/Analyzers [3d25724b-832f-4a61-b0b2-4f2ccecdba94,698163]);
  • 2021-08-09 15:13:46.0 [tstevens] insert AltLabel (id: null category: primary text: Cavity Attenuated Phase Shift Spectroscopy PMex Monitor language code: en); insert Definition (id: null text: The CAPS PM monitor provides a measurement of the optical extinction (the sum of scattering and absorption) of an ambient sample of particles. Currently, there is a choice of 5 different wavelengths – blue (450 nm), green (530 nm), red (630 nm), far red (660 nm ) and near infrared (780 nm, at additional cost) – which match the spectral bands of most other particle optical properties measurement equipment. A multi wave instrument is also available. These instruments have a 1 second time response and provide a level of detection (3σ) less than 2 Mm-1 with 1 second integration time. These monitors are entirely self-contained, requiring no consumables such as zero air and can be operated autonomously for over 12 months using on-board data storage if one second averaging is chosen. language code: en);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/cfef6030-aba1-47b6-b643-e826c5b88468

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