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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.12 [2005] >
IJEMS Vol.12(6) [December 2005] >
| Title: | A novel concept in the design of a psychrometer |
| Authors: | Sen, Sunit Kumar |
| Issue Date: | Dec-2005 |
| Publisher: | CSIR |
| IPC Code: | G01N25/62 |
| Abstract: | A novel psychrometric method for measurement of
humidity of a process is proposed. The design of a psychrometer is a complex
one due to simultaneous introduction of two variables at the same time, viz.,
the meter current is dependent on both the relative humidity and ambient
temperature. The circuit design has been so made that the said current would
depend only on the relative humidity of air and independent of temperature
variations at the place of measurement. Theoretical calculations show that the
maximum error in the measurement of the meter current would be limited to
within +1.6% at 120°F and -2%
at 60°F for 100% relative humidity while the
same would be within ±1.75% for the entire temperature range 60°-120°F for 0% relative humidity. |
| Page(s): | 498-504 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.12(6) [December 2005]
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