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/41188/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 41188,
    "uuid": "00f1af3b2e4e45b19b6abcf950015001",
    "title": "University of Bristol GC-ECD A",
    "abstract": "A trace gas analyser that employs gas chromatography with electron capture detection (GC-ECD) to make measurements of N2O and SF6, used at Ridge Hill  atmospheric monitoring station. This instrument uses an Agilent 7890A GC (serial number: CN11171049) equipped with a micro-ECD - see Stanley et al. (2018) for  more instrument details: https://doi.org/10.5194/amt-11-1437-2018",
    "keywords": "bristol-gc-ecd-a",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12775/?format=api"
    ],
    "instrumentType": "",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/200288/?format=api"
    ]
}