RSKderiveAPT.m

Arguments

Input

RSK
AlignmentCoefficients: a matrix of alignment coefficients on the Paroscientific, Inc. triax accelerometer instrument configuration sheet
TemperatureCoefficients: a matrix of temperature coefficients on the Paroscientific, Inc. triax accelerometer instrument configuration sheet
AccelerationCoefficients: a matrix of acceleration coefficients on the Paroscientific, Inc. triax accelerometer instrument configuration sheet

Output

RSK

The RBRquartz³ APT is a combined triaxial quartz accelerometer and a bottom pressure recorder. It is equipped with a Paroscientific, Inc. triaxial accelerometer and records the acceleration output periods from the accelerometer. RSK files contain only periods for acceleration and temperature.

RSKderiveAPT derives 3-axis accelerations from the accelerometer frequency channels for RSK files. It implements the calibration equations developed by Paroscientific, Inc. to derive accelerations. It requires users to input the alignment and acceleration coefficients. The coefficients are available on the Paroscientific, Inc. triax accelerometer instrument configuration sheet, which is shipped along with the logger. Derived accelerations and temperature are added to the RSK data structure. The channel list is updated.

Alignment_coefficients = [
        	1.000255,   -0.0039653,   -0.0124405;
        	-0.0039653, 1.000024,     -0.0007361;
        	-0.0124405, -0.0007361,   1.000233;
    	];
Temperature_coefficients = [
        	5.851216,   5.851216,    5.851217;
     	    -3832.07,   -3932.043,   -3831.314;
        	-9927.094,  -9927.27,    -9906.409;
        	0,          0,           0
    	];
Acceleration_coefficients = [
            161.7889,  163.8502,   -156.4997;
            4.696635,  -21.70017,  16.96788;
            1037.975,  -475.2767,  257.9934;
            0.0321309, 0.0300516,  0.0334427;
            0,         0,          0;
            29.47272,  29.23321,   29.61585;
            0.2672,    1.381017,   0.5572340;
            17.2461,   35.86061,   27.18382;
			0,         0,          0;
			0,         0,          0
        ];
RSK = RSKderiveAPT(RSK, 'AlignmentCoefficients', Alignment_coefficients, 'TemperatureCoefficients', Temperature_coefficients, 'AccelerationCoefficients', Acceleration_coefficients)


An example of Paroscientific, Inc. triax accelerometer instrument configuration sheet