Get a list of Instrument objects. Instruments have a 1:1 mapping with Observations.

### Available end points:

- `/instruments/` - Will list all Instruments in the database
- `/instruments.json` - Will return all Instruments in json format
- `/instruments/<object_id>/` - Returns Instruments object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `title`
- `uuid`
- `keywords`
- `instrumentType`

### How to use filters:

- `/instruments/?title__startwith!=Instrument.title: DETAILS NEEDED`
- `/instruments/?uuid=c7fa005e2095425392b18adbd7b40617`
- `/instruments.json?instrumentType=radiometer`

GET /api/v2/instruments/13195/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 13195,
    "uuid": "291a200793de47cfa42c5b45497ba3ad",
    "title": "Weybourne Atmospheric Observatory: Electron Capture Detector on the Clarus 500 Greenhouse Gas Chromatograph",
    "abstract": "The Electron Capture Detector (ECD) on the Clarus 500 Greenhouse Gas Chromatograph (GC) at Weybourne Atmospheric Observatory is used to make quasi-continuous measurements of nitrous oxide (N2O) and sulphur hexafluoride (SF6) in atmospheric air. Samples are analysed every ten minutes and with reference to the NOAA2006A scale for N2O and NOAA2006 scale for SF6. In addition the instrument can determine the N2O and SF6 concentrations in discrete samples (i.e. whole air samples, SilcoCans).  The measurements from this instrument are part of the National Centre for Atmospheric Science (NCAS) Atmospheric Measurement Facility (AMF) long-term measurement strategy.",
    "keywords": "NCAS, Nitrous oxide, Sulphur hexafluoride, Gas chromatography, Electron Capture Detector",
    "identifier_set": [],
    "instrumentType": "gas_chromatograph",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50569/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50568/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50570/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141010/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50571/?format=api"
    ]
}