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/27289/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 27289,
    "uuid": "0822451c402d406fa5c63c9f4e1d884f",
    "title": "Li-6252 CO2 analyser",
    "abstract": "Atmospheric CO2 mole fraction is measured using a commercially available 'Li‐6252' analyser (Li‐Cor Inc.), which uses non‐dispersive infrared (NDIR) technology. The Li‐6252 is operated in differential mode, and is specifically tuned to the 4.26 μm absorption band for CO2 using a 150 nm optical filter. This ensures the analyser is insensitive to other infrared absorbing gases, and also to vibration, which is important for a shipboard measurement system.",
    "keywords": "",
    "identifier_set": [],
    "instrumentType": "other_instrument_type",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114120/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/168436/?format=api"
    ]
}