Mark A. Johnson,Robert D. Eckles,Dayle K. McDermitt
申请号：
US14542926
公开号：
US09482653B2
申请日:
2014.11.17
申请国别(地区):
US
年份:
2016
代理人:
摘要：
Active compensation designs to offset the impact of gas diffusion sources and sinks in a photosynthesis and transpiration measurement system are disclosed. A sensor head for use in a gas exchange analysis system includes an active, piezoelectric flow splitting device for splitting a flow between a sample chamber and bypass pathway. The active flow splitting device is controlled by feedback from a downstream flow meter. A continuous measurement system for rapidly and accurately surveying large numbers of samples is described.
