Document Detail

Novel liquid flow sensor based on differential pressure method.
MedLine Citation:
PMID:  17503947     Owner:  NLM     Status:  MEDLINE    
In this article, a novel liquid flow sensor which is composed of a special structure conduit main body and a differential pressure sensor was designed, fabricated, and calibrated. The conduit main body includes an inlet channel section with a branch conduit connecting one end of the pressure sensor, a throat channel section, and an outlet channel section with a branch conduit connecting another end of the pressure sensor. The basic principle is to employ a differential pressure sensor to measure the pressure difference between the inlet channel and outlet channel of the conduit main body when fluid passes through it. The pressure difference between the two ends of the differential pressure sensor (i.e., the two branch conduits located in the inlet and outlet channel sections) is of either forward or backward flow and directly interrelates with the volume flow rate (mass flow rate or flow velocity) via the conduit main body, so the volume flow rate or mass flow rate or flow velocity can be calculated and the flow direction can be determined from the detected pressure difference. This liquid flow sensor is characterized by using only one differential pressure sensor of a simple structure, the error of which is less than 1%.
Zhizhuang Liu; Tiansheng Hong; Wenzhao Zhang; Zhen Li; Haibo Chen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Review of scientific instruments     Volume:  78     ISSN:  0034-6748     ISO Abbreviation:  Rev Sci Instrum     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2007-05-16     Completed Date:  2007-06-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0405571     Medline TA:  Rev Sci Instrum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  015108     Citation Subset:  IM    
College of Engineering, South China Agricultural University, Guangzhou 510642, China.
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MeSH Terms
Equipment Design
Manometry / instrumentation
Rheology* / instrumentation
Transducers, Pressure

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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