@prefix ns0: <http://gcmd.gsfc.nasa.gov/kms#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/6c8992c5-d083-4c4a-ae02-6815ffd2a2c0>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """[Source: AMPTEK, http://www.amptek.com/didm.html ]

Digital Ion Drift Meter (DIDM) instruments are designed to measure the velocity vectors of ambient ions at a spacecraft's location. Measurements of ion density and temperature are also provided. The local electrical field strength can be obtained via the relationship between electrical field, ion drift velocity and the measured magnetic field provided by on-board magnetometer.

More information: http://www.amptek.com/didm.html


Group: Instrument_Details
   Entry_ID: DIDM
   Group: Instrument_Identification
      Instrument_Category: Solar/Space Observing Instruments
      Instrument_Class: Particle Detectors
      Short_Name: DIDM
      Long_Name: Planar Langmuir Probe
   End_Group
   Group: Associated_Platforms
      Short_Name: CHAMP
   End_Group
   Online_Resource: http://www.amptek.com/didm.html
   Sample_Image: http://www.amptek.com/didm2.gif
   Creation_Date: 2009-10-07
   Group: Instrument_Logistics
      Instrument_Owner: Germany/GFZ
   End_Group
End_Group"""@en ;
  skos:prefLabel "DIDM"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/5f5e4f2c-61b7-4694-8680-3fc5799f6171> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/5f5e4f2c-61b7-4694-8680-3fc5799f6171>
  skos:prefLabel "Particle Detectors"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/6c8992c5-d083-4c4a-ae02-6815ffd2a2c0> .