ace-net多通道土壤呼吸测量技术(英文).ppt
,ACE Networks,Controlling multiple ACE Stations,ACE Station Sales,OPEN v CLOSED 50%/50%,Multiple ACE Stations can be used independently,Many experiments need more than one ACE Station,ACE Network,Up to 30 Stations connected together via a Master Control Unit,UP to 30 ACE Station experiment,ACE Master Control Unit,Weatherproof enclosureGraphic display30 ACE Station docking ports2 battery portsMains power optionData storage CF cards,Programs all ACE Stations in Network,ACE Master Control Unit,Powers all ACE Stations in Network,Data storage for all ACE Stations,Makes experimentation easier,Review recent data for all ACE Stations,ACE Master Control Unit,LCpro+type graphic display,5 key operation Menu driven software,Dual CF card drive,ACE Networks,Electrical connections only-No gas connections-2 core cable Easy to set up and program 200m diameter experimental area-10M and 100M cables Power efficient-No pumping of gas required Multiple Stations can take measurements at same time,Review data on Graphic displayOne Station,all parameters,one time pointOne parameter,one time point,all StationsOne Station,one parameter,all time points,Next step for ACE Master Control Unit,10 or 20 or 30 ACE Station modules10 Station ACE MCU 2,240(30-2,679)Factory upgradeable,ACE Master Control Unit,ACE Network big advantage:Integral CO2 IRGA in ACE Station,Response time200M experimental diameterVery power efficientDistance to pump gas to IRGALittle chance of H2O drop outEasy to set upField rugged,Network pricing,Can purchase just individual ACE Stations ACE Stations with MCU Network Packages 8,16,30 Station packages Includes all cables Open or Closed mode Station packages 30 ACE Station package 150,000,Licor:Li8100,The competition,Li8150 gas multiplexer,Introduced 2008Only up to 16 chambersOnly 30M diameter coverageVery complex set upMust have multiplexer for multiple chambers(GBP7,000)Different chamber for multiplexed system,ACE Station advantages over the Li8100,Fully integrated system Separate analyser/chamber.Needs PC/PDA Analyser in chamber Analyser in box 2M of tubing awayResponse timeNo gas hang upsEasier/quicker set upPower efficientLess prone to animal attackHigh quality IRGA Multipurpose IRGA(0-3000ppm/6ppm resolution)0-1000ppm/1ppm resolutionOpen or closed mode closed onlyTransparent chambers N/AData storage/review at Station Requires PC/PDASoil moisture and temperature sensors ports(max 10)Option only(max 4)Easy to program Requires PC/PDAEach Station 7Kg Analyser+Chamber=11KgACE Station 5,000 Li8100 Analyser+Chamber=13,000,ACE Network advantages over the Li8100,Up to 30 chambers Up to 16 chambersOver 200M coverage area 30M coverage areaLower power consumption Very high power consumption(large pumps)Experimental time for 16 chambers(10 mins)Experimental time 10 mins x 15 chambers(150mins)All ACE Stations can measure at same time N/A Each Station 10 sensors Max 4 sensors only at analyser as standardFast response Very slow response,gas pumped to analyser up to 15M awayLittle chance of H2O drop out Great danger of water vapour drop outReview data on Master Control Unit Requires PC or PDA Easy to set up Complex with numerous gas connectionsACE Master Control Unit 2,200 Licor Gas Multiplexer 7,00016 chamber Network 88,000 95,000(85,000 no MCU),Compared to the Licor system,ACE provides the,Technical superior,Economic,The most practical,Way for measuring long-term soil flux,
