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Instruments > In Situ/Laboratory Instruments > Probes > Hotwire LWC

Preferred term

Hotwire LWC  

Definition

  • The Hotwire LWC instrument estimates liquid water content using a heated sensing coil. The system maintains the coil at a constant temperature, usually 125 °C, and measures the power necessary to maintain this temperature. More power is needed to maintain the temperature as droplets evaporate on the coil surface and cool the surface and surrounding air. Hence, this power reading can be used to estimate LWC. Both the LWC design and the optional PADS software contain features to ensure the LWC reading is not affected by conductive heat loss. (en)

Broader concept

Change note

  • 2019-12-12 12:07:09.0 [tstevens] Insert Concept add broader relation (Hotwire LWC [2cbb3280-a541-4e17-b0c0-3583ba06a030,532247] - Probes [def72d78-3c2f-4f46-91e7-259a0e63e2de,518663]);
  • 2019-12-12 12:08:06.0 [tstevens] insert AltLabel (id: null category: primary text: Hotwire Liquid Water Content Sensor language code: en); insert Definition (id: null text: The Hotwire LWC instrument estimates liquid water content using a heated sensing coil. The system maintains the coil at a constant temperature, usually 125 °C, and measures the power necessary to maintain this temperature. More power is needed to maintain the temperature as droplets evaporate on the coil surface and cool the surface and surrounding air. Hence, this power reading can be used to estimate LWC. Both the LWC design and the optional PADS software contain features to ensure the LWC reading is not affected by conductive heat loss. language code: en);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/2cbb3280-a541-4e17-b0c0-3583ba06a030

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