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/11793/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 11793,
    "uuid": "97636f2dfed4f0a6daf6aca74f3bd531",
    "title": "Met Office Counter flow Virtual Impactor (CVI)",
    "abstract": "The Counter flow Virtual Impactor (CVI) is an inlet designed to initially separate cloud particles from the ambient atmosphere.  Once captured, cloud particles are evaporated in a clean, dry airstream.  Instruments downstream analyse the resulting water vapour and cloud condensation nuclei (CCN), or ice nuclei (IN) as applicable. This inlet is operated on the FAAM BAe-146 aircraft.",
    "keywords": "",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7799/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7800/?format=api"
    ],
    "instrumentType": "particle_counter",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45607/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45606/?format=api"
    ]
}