| dc.creator |
Belo Francisco Antônio |
|
| dc.creator |
Moura Luiz Felipe Mendes de |
|
| dc.date |
1999 |
|
| dc.date.accessioned |
2013-05-30T11:15:50Z |
|
| dc.date.available |
2013-05-30T11:15:50Z |
|
| dc.date.issued |
2013-05-30 |
|
| dc.identifier |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-73861999000400005 |
|
| dc.identifier |
http://www.doaj.org/doaj?func=openurl&genre=article&issn=01007386&date=1999&volume=21&issue=4&spage=611 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/jspui/handle/123456789/4471 |
|
| dc.description |
This paper describes an electronic transducer for multiphase flow measurement. Its high sensitivity, good signal to noise ratio and accuracy are achieved through an electrical impedance sensor with a special guard technique. The transducer consists of a wide bandwidth and high slew rate differentiator where the lead inductance and stray capacitance effects are compensated. The sensor edge effect is eliminated by using a guard electrode based on the virtual ground potential of the operational amplifier. A theoretical modeling and a calibration method are also presented. The results obtained seem to confirm the validity of the proposed technique. |
|
| dc.publisher |
The Brazilian Society of Mechanical Sciences |
|
| dc.source |
Journal of the Brazilian Society of Mechanical Sciences |
|
| dc.subject |
Multiphase Flow |
|
| dc.subject |
Measurements |
|
| dc.subject |
Tomography |
|
| dc.title |
A high frequency electronic transducer for multiphase flow measurements |
|