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/3466/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 3466,
    "uuid": "7bfa640a5e484d7a8241e6ce6190aa01",
    "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Meteorological Particle Sensor",
    "abstract": "The meteorological particle sensor works by imaging individual particulates, including rain, snow and hail, and measuring their size. The meteorological particle sensor was manufactured by Droplet Measurement Technologies, Inc. (USA). It was deployed at Sparsholt College from 2004 to 2007 and has been deployed at Chilbolton since 2009.",
    "keywords": "",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2345/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2346/?format=api"
    ],
    "instrumentType": "met_sensor",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14819/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14818/?format=api"
    ]
}