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/41495/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 41495,
    "uuid": "ac9db45687b54ee2b62f66e6cd823411",
    "title": "QUANT Urban Sciences Atmos",
    "abstract": "Low-cost instrument (make: Urban Sciences, model Atmos) measuring air quality as part of the QUANT Wider Participation study. Has sensors that measure: Temperature, PM2.5, Relative Humidity, PM10, PM1.\r\n\r\nSerial Numbers: \r\nE098060E73E3 \r\nE098060F044A",
    "keywords": "",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12826/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12827/?format=api"
    ],
    "instrumentType": "sampler",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202185/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202186/?format=api"
    ]
}