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/25845/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 25845,
    "uuid": "8089a20129fb48dab5eabc107aabaf02",
    "title": "Complejo AstronĂ³mico El Leoncito: Boltek field meter",
    "abstract": "Potential gradient is measured using a Boltek field meter.  It is mounted on a 130 cm aluminium tripod. The sensor is ~15 meters away housing, and is surrounded by scrub and low bushes. \r\nCorrection by height factor was performed during 2010:\r\n\r\nPG_C=(PG_R-c)/m\r\n\r\nwhere: \r\nPG_R: PG values recorded by the sensor.\r\nPG_C: PG values corrected by height factor.\r\nc: -0.094422940\r\nm:  7,3559111\r\n",
    "keywords": "Potential gradient",
    "identifier_set": [],
    "instrumentType": "other_instrument_type",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107964/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107963/?format=api"
    ]
}