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/2361/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 2361,
    "uuid": "d8933a96415042e0bbf256ed7b9b84fa",
    "title": "MRF - C-130 - Passive Cavity Aerosol Spectrometer Probe (PCASP)",
    "abstract": "A Passive Cavity Aerosol Spectrometer Probe (PMS model PCASP-100X) was used to\ncount number concentrations (number per cm3) of particles in 15 channels spaced\npseudo-logarithmically over the diameter range 0.10 micrometres to 3.00\nmicrometres, to provide a particle size distribution over this range. The\ninstrument has been used as provided by the manufacturer, except for\nmodifications to monitor air flows. The instrument operates on the principle\nthat the light scattered by a particle within an active laser cavity is a\ndirect function of its size.\n\nThe PCASP has a fast response: PMS quote that it can count at least 20,000\nparticles per second.",
    "keywords": "",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1647/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1648/?format=api"
    ],
    "instrumentType": "instrument",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11319/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11318/?format=api"
    ]
}