Document Detail

The study of new vacuum pressure measurement technique using ultrasonic acoustic impedance transducers.
MedLine Citation:
PMID:  21806231     Owner:  NLM     Status:  In-Data-Review    
Ultrasonic sensors of 500 kHz frequency have been used to study the measuring of gas pressure in the range 1.33 × 10(3)-2.026 × 10(5) Pa. From the experimental data it was observed that amplitude of the transmitted ultrasound was dependent on gas pressure. The results confirm that by using appropriate instruments including sensors and electronic devices, pressure of the gas can be successfully measured by measuring the magnitude of the received signal. The proposed method is expected to be applied to develop as new vacuum pressure measurement instrument.
S S Hong; Wakil Khan; Y H Shin; S H Cho; B Y Ahn; J W Chung; S Y Woo
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Review of scientific instruments     Volume:  82     ISSN:  1089-7623     ISO Abbreviation:  Rev Sci Instrum     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-08-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0405571     Medline TA:  Rev Sci Instrum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  075111     Citation Subset:  IM    
Korea Research Institute of Standards and Science (KRISS), Daejeon 305-340, South KoreaUniversity of Science and Technology (UST), Daejeon 305-333, South Korea.
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