[
    {
        "attrs": {
            "calibration_date": "2008-08-07",
            "comment": "",
            "description": "A self-contained unpumped unit comprising the temperature, conductivity and pressure sensors that is designed specifically for deployment on ocean gliders. The sensors are typically installed externally on the hull of the glider. These are OEM products with variable specifications; they are calibrated in a calibration fixture at Sea-Bird, removed from that fixture, and installed in a housing that Sea-Bird does not know or have control over. Additionally, sensor performance is dependent on flow rate through the cell and water column temperature and salinity gradients.",
            "factory_calibrated": "2008-08-07",
            "long_name": "SBE CT Sail",
            "maker": "Sea-Bird Scientific",
            "maker_vocabulary": "https://vocab.nerc.ac.uk/collection/L35/current/MAN0013/,https://vocab.nerc.ac.uk/collection/B75/current/ORG00226/",
            "model": "Sea-Bird CT Sail CTD",
            "model_vocabulary": "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1188/",
            "owner": "Rutgers University",
            "serial_number": "138",
            "type": "CTD,salinity sensor,sensor model,water temperature sensor",
            "type_vocabulary": "http://vocab.nerc.ac.uk/collection/L05/current/130/,http://vocab.nerc.ac.uk/collection/L05/current/350/,http://vocab.nerc.ac.uk/collection/L19/current/SDNKG17/,http://vocab.nerc.ac.uk/collection/L05/current/134/",
            "user_calibrated": ""
        },
        "cfg_file": "/home/glideradm/doco/glideradm/configs/instruments/138-ctd.yml",
        "nc_var_name": "instrument_ctd",
        "type": "i4"
    },
    {
        "attrs": {
            "calibration_date": "1970-01-01",
            "comment": "1 MHz transducer, designed for installation on Slocum gliders. No calibration date available. Head ID AQP 4965.",
            "description": "A family of self-contained Doppler current profilers, Nortek Aquadopp Profilers are often referred to as AquaPro instruments. They are designed for deployment on the seabed, moorings, buoys or fixed structures. They can feature a range of transducers - 400 kHz (60-90m range - 2-8m cell size), 600 kHz (30-40m range - 1-4m cell size), Z-cell 600 kHz, 1 MHz (12-25m range - 0.3-4m cell size), Z-cell 1MHz, 2 MHz (4-10m range - 0.1-2m cell size) and side-looking. Each transducer has 3 beams and the instrument has a maximum of 128 cells. Current speeds up to 10 m/s may be measured at an accuracy of 1% of measured value +/-0.5cm/s. The standard depth rating is 300 m with 3000 m or 600m versions available. Temperature (embedded thermistor with 0.1C accuracy and 0.01C resolution), compass (magnetometer with 2 degrees accuracy and 0.1 degree resolution providing tilt <20 degrees), tilt (liquid level with 0.2 degree accuracy and 0.1 degree resolution) and pressure (piezo resistive with accuracy of 0.5% full scale - usually 100m - and resolution of 0.005% full scale) sensors are provided as standard.",
            "factory_calibrated": "1970-01-01",
            "long_name": "Nortek Aquadopp Doppler Current Profiler",
            "maker": "NortekUSA",
            "maker_vocabulary": "http://vocab.nerc.ac.uk/collection/B75/current/ORG00333/,http://vocab.nerc.ac.uk/collection/L35/current/MAN0068/",
            "model": "Nortek Aquadopp Doppler Current Profiler",
            "model_vocabulary": "http://vocab.nerc.ac.uk/collection/L22/current/TOOL0888/",
            "owner": "Rutgers University",
            "references": "",
            "serial_number": "24336",
            "type": "current profilers",
            "type_vocabulary": "http://vocab.nerc.ac.uk/collection/L05/current/115/",
            "user_calibrated": ""
        },
        "cfg_file": "/home/glideradm/doco/glideradm/configs/instruments/24336-aquadopp.yml",
        "nc_var_name": "instrument_aquadopp",
        "type": "i4"
    }
]