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/818/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 818,
    "uuid": "fb10a13ec82249d69ff3a4c699f4c35b",
    "title": "University of Manchester: Ozone DIAL LIDAR",
    "abstract": "The University of Manchester operate a Ozone DIAL lidar at the MST Radar Facility site at Capel Dewi, near Aberystwyth, Mid-Wales. The instrument produces profiles of ozone number density with a height resolution of 300 m (approx) between 5 and 15 km. Measurements are possible throughout the day but are more extensive and more accurate at night. Frequency of measurement if variable, but usually 5 minutes.\r\n\r\nThe instrument is a three-wavelength UV lidar operating at 289, 299 and 316 nm. For further details see G. Vaughan, F. M. O'Connor and D. P. Wareing, Observations of streamers in the stratosphere and troposphere using ozone lidar. J. Atmos. Chem. 38, 295-315, 2001.\r\n\r\nThe instrument was formerly owned and operated by the University of Wales, Aberystwyth.",
    "keywords": "lidar, ozone, DIAL",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/549/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/550/?format=api"
    ],
    "instrumentType": "lidar",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2702/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2703/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49046/?format=api"
    ]
}