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/35026/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 35026,
    "uuid": "5c93b83aa2d4442491b6e65f10bfc0d4",
    "title": "ZAMG: Vaisala CL51 instrument",
    "abstract": "Vaisala CL51 instrument operated by Zentralanstalt für Meteorologie und Geodynamik (ZAMG) providing cloud base height and aerosol profile data.",
    "keywords": "ceilometer",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/11025/?format=api"
    ],
    "instrumentType": "lidar",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/170142/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/170143/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/170144/?format=api"
    ]
}