vb_read_yokogawa_calib_data

 [OUT]
   calib_data      : calibration data (gain, offset) for each channel
 [IN]
   fid : file id
   required_channel: Required channel (in vector format, starts with 0)
                     You can choose [Inf] for all channel selection.
                     e.g. [0, 1, 10, 100]   -> ch0,1,10,100 will be loaded
                     e.g. none              -> all channel

 Copyright (C) 2011, ATR All Rights Reserved.
 License : New BSD License(see VBMEG_LICENSE.txt)

0001 function [calib_data] = vb_read_yokogawa_calib_data(fid, required_channel);
0002 % [OUT]
0003 %   calib_data      : calibration data (gain, offset) for each channel
0004 % [IN]
0005 %   fid : file id
0006 %   required_channel: Required channel (in vector format, starts with 0)
0007 %                     You can choose [Inf] for all channel selection.
0008 %                     e.g. [0, 1, 10, 100]   -> ch0,1,10,100 will be loaded
0009 %                     e.g. none              -> all channel
0010 %
0011 % Copyright (C) 2011, ATR All Rights Reserved.
0012 % License : New BSD License(see VBMEG_LICENSE.txt)
0013 
0014 %%% チャンネル設定 %%%
0015 channel_count  =   GetMeg160ChannelCountM( fid );
0016 ch_vec = [];
0017 if ~isexist(required_channel)
0018     ch_vec = 0:(channel_count-1);
0019 else
0020     ch_vec = required_channel;
0021 end
0022 ch_vec_index = ch_vec + 1;
0023 
0024 calib_info  =   GetMeg160CalibInfoM( fid );
0025 %   (m x 3) matrix of calibration information. (m: channel_count)
0026 %         1   : channel number in Meg160(zero start)
0027 %         2   : gain [Tesla/V]
0028 %         3   : offset voltage [V]
0029 selected_calib_info = calib_info(ch_vec_index, :);
0030 for no = 1:length(ch_vec)
0031     data_gain = selected_calib_info(no, 2);
0032     data_offset = selected_calib_info(no, 3);
0033     calib_data(no) = struct('offset', data_offset, 'gain', data_gain );
0034 end
0035