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/25055/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 25055,
    "uuid": "8286a324d69e4167bfea615ad663d876",
    "title": "Electric Field Monitor Panska Ves observatory",
    "abstract": "Potential gradient is measured using an EFM-100 Electric Field Mill from Boltek. It is mounted in inverse position about 0.9 m above ground using Boltek 3 feet tripod inverting mounting kit.  The EFM-100 is located on the grass away from elevated objects. \r\nCalibration was done using a reference EFM-100 located on the ground surface at several places around the installed EFM-100 to find a correction factor, which is applied on raw data.\r\nAnalog output of EFM-100 is sampled at 25 Hz by dedicated datalogger with GPS time stamping. Data are stored in specific binary format.\r\n",
    "keywords": "",
    "identifier_set": [],
    "instrumentType": "",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/102611/?format=api"
    ]
}