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/39783/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 39783,
    "uuid": "8b64745d720c48ad8c8a20a24d94e0c8",
    "title": "Kakioka - atmospheric electric potential gradient",
    "abstract": "Potential gradient is measured using a Boltek EFM-100.  It is mounted on a 0.6 m metal pole.\r\nThe provided data was calibrated using long-term observation of water dropper data (Nagamachi et al, Geosci. Data J., 2021). The resolution of the sensitive data provided through GLOCAEM is 1.9 V/m and the measurement range is from -3.8 kV/m to +3.8 kV/m. GPS-synchronized data with higher resolution (0.19 V/m) and with high sampling (10 Hz), all-sky camera images (10 min. sampling), animal camera images (motion detection) and are also available through on-demand request.\r\n\r\nThe instrument is located at 27 m a.s.l.\r\nMeasurement frequency is 1Hz\r\n\r\nThis is used in the  Glocaem potential gradient network",
    "keywords": "glocaem",
    "identifier_set": [],
    "instrumentType": "instrument",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/193785/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/193787/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/193784/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/193786/?format=api"
    ]
}