数据记录仪prog CR1000系列数据记录仪的例子ram for Apogee Instruments model SB-100 barometric pressure sensors 'date: July 17, 2013 'program author: Jacob Bingham 'Explanation of Constants and Variables Used in Datalogger Program 'CF = calibration factor (slope) to convert voltage signal to pressure 'Offset = offset (intercept) to convert voltage signal to pressure 'BattV = datalogger battery voltage 'PanelT = datalogger panel temperature 'Signal = mV signal output from pressure sensor 'BP = barometeric pressure in kilopascals 'Declare Public Variables Public BattV, PanelT Public Signal, BP 'Declare Constants Const CF = 0.0218 Const Offset = 11.4 'Define Data Tables DataTable (Pressure,1,-1) DataInterval (0,1,Min,10) Minimum(1,BattV,IEEE4,0,False) Sample(1,PanelT,IEEE4) Average(1,BP,IEEE4,False) EndTable 'Main Program BeginProg Scan(1,Sec,0,0) Battery(BattV) PanelTemp(PanelT,_60Hz) 'Measure Barometric Pressure VoltSe(Signal,1,mV5000,1,1,0,_60Hz,1.0,0) BP = CF * Signal + Offset 'Call Output Tables CallTable Pressure NextScan EndProg