【實用工具app】Linear Calibrator|最夯免費app-綠色工廠好玩App

Linear Calibrator is to be used for a linear data converter such as Celsius to Fahrenheit Converter, and data correction for experimental data.Suppose that two kinds of data, X and Y, are linear relation and that the data of two points, (X1, Y1) and (X2, Y2), are known. The data of arbitrary point is calculated from the following formulae.Y　＝（Y2 - Y1）x（X-X1）/（X2 - X1）＋ Y1X　＝（X2 - X1）x（Y-Y1）/（Y2 - Y1）＋ X1This software is a simple sheet to execute the above calculation. (Example-1) Celsius to Fahrenheit ConverterChange 25-degree Centigrade into Fahrenheit.Linear Calibrator solves this in the following three steps.//Step 0: Preparation//Prepare calibration data.They are as follows.P1 0 degC 32 degFP2 100 degC 212 degF//Step 1: Definition//Enter the calibration data into the sheet.NameX = degC, NameY = degF X1 = 0, Y1 = 32X2 = 100, Y2 = 212 //Step 2: Calculation//Enter 25-degree Centigrade to degC data field.Touch out P button of degC data field.Converted data, 77.0-degree Fahrenheit, is displayed in the degF data field.In case of sequential conversion, DX button can be used.For example, conversions from 30, 35, 40, 45, 50, … are as follows.Increment is 5.Enter 5 in DX text.Touch out the +DX button. Converted data, 86.0 -degree Fahrenheit corresponding to 30 (=20+5) ℃, is displayed in the degF data field.When the +DX button is touched out continuously, the next conversion can be obtained. (Example-2) Data correction for experimental dataIt is known that the oxygen gas concentration (%) and the oxygen sensor output (mV) have a linear relationship. We have calibrated the oxygen sensor at the following two points.P1 0 % 2 mV P2 21 %21 mV When the oxygen sensor output is 4 mV, how much percent is the exact oxygen gas concentration?//Step 0: Preparation//Prepare calibration data.They are as follows.P1 0 %2 mV P2 21 %21 mV //Step 1: Definition//Enter the calibration data into the sheet.NameX = %, NameY = mV X1 = 0, Y1 = 2X2 = 21, Y2 = 21 //Step 2: Calculation//Enter data to the mV data field and touch out P button of this field.The 2.21 % of exact gas concentration data is displayed.C button clears data, and enables to calculate next data.[Buttons]//P button// P (put) button inputs data and execute calculation.When the data field is blank, it is interpreted as illegal data.When the data field is illegal character, it is interpreted as zero value.//-DX button//The -DX button subtracts DX value from X value, executes the P button.//+DX button//The +DX button adds DX value to X value, executes the P button.//-DY button//The -DY button subtracts DY value from Y value, executes the P button.//+DY button//The +DY button adds DY value to Y value, executes the P button.//C button//C (Clear) button clears data.[Color change]After the P button execution, data are shown in the following colors.Input data:Blue colorOutput data:Green colorUncalculated data:Red colorThe uncalculated data is not output. The former data is remains unchanged in this data field.