A tool to customisely control of evaluation board (ADS52J90), to collect the measured data and process the data. The visualization is auch included.
This software is for customized controling of evaluation board (ADS52J90) to collect the measured data from grating sensor. The collected data are processed and analyzed in order to detect the ratio between gas and water/oil. It is a convenient and straightforward application with advanced features.
Overview of evaluation board
Data process and visualizaiton
grating structure: 8channels*8lines = 64 points reference frequency: 20MHz signal frequency: 5MHz
input signal period: stype = 1: 6us (signal) + 2us (pause) = 8us number of samples for 1 point is 8us20MHz = 160 samples, one channel for one frame has samples 1608 = 1280 stype = 2: 12us (signal) + 4us (pause) = 16us number of samples for 1 point is 16us20MHz = 320 samples, one channel for one frame has samples 3208 = 2560
for 1 channel the minimum recorded samples is 4096, number of frames for stype = 1 is 3, for stype = 2 is 1 maximum recorded samples is 1024 MB(=1GB)/2bytes/16channels = 32 Msamples = 32768 Ksamples = 33554432 samples
grating structure: number of channel (nchannel)*number of line (nline) reference frequency: 20MHz signal frequency: 5MHz
input signal period: for example, 6us (signal) + 2us (pause) = 8us number of samples for 1 point is 8us20MHz = 160 samples, that is the sample number (pointsamplenum), one channel for one frame has samples pointsamplenumnline, that is, the valid data length of datafile of one channel is pointsamplenum16nframe (chvalidlen) number of samples of 1 point used for analysing signal is 6us*20MHz = 120 samples, that is valid number (pvalidnum)
class GratingSensor: input parameters: nchannel: number of channels to receive signal, default value: 8 nline: number of lines to send signal, default value: 8 pointsamplenum: number of samples for 1 point, default value: 160 pvalidnum: number of valid samples for 1 point, default value: 100 nframe: number of frames for the whole datafile, default value:3 triggerlen: number of samples for trigger signal, default value:20 databits: selected data format of ADS52J90 board, default value: 14 cited functions: IQsample4times(): calculate the mean and std value of I, Q, A, Psi for all points of grating structure recorded in the datafile output is a 3d numpy array, x has number of 16*nframe, y is nchannal, z is Imean, Qmean, Istd, Qstd, Amean, Psimean, Astd, Psistd in sequence PlotFrames(): scatter plot the calculated data resulting from IQsample4times in frames, store in dict with name in sequence 'Frame_i' the edgewidth of scatterpoint is the value of std the color of scatterpoint is the value of mean ShowFigures(): display the figure of the frames
The list of required python packages is contained in the requirements.txt file in this repository. After install the required dependencies, run MeasurementView_main.py to execute the program.