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ÆÄÀÏ : [½ÇÇè°á°ú] dzµ¿½ÇÇè °á°ú µ¥ÀÌÅÍ.hwp   [Size : 261 Kbyte ]
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Ä«Ä«¿À ID·Î
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¾Ð·Âº¯È¯±â´Â manometer·Î ¾òÀº µ¿¾ÐÀÇ °ªÀ» Àü¾Ð(voltage)À¸·Î ¹Ù²ãÁÖ´Â ÀåÄ¡À̹ǷΠ¾Ð·Â°ú Àü¾ÐÀÇ °ü°è´Â ºñ·Ê°ü°è·Î »ý°¢ÇÒ ¼ö ÀÖ´Ù.
Pressure(Pa)¡ëA(x-B)
¡ë958.54(x+0.xxx44) where A : slope
B : intercept

¨èÃøÁ¤ÇÑ Data point¸¦ Ç¥·Î¼­ Ç¥ÇöÇÑ´Ù.

dzµ¿ ¼Óµµ(Hz)
Æò±Õ Àü¾Ð (V)
¾Ð·Â(Pa)
manometer value
(mm of water)
22
0.15626
137.3
19.5
30
0.31814
294.21
35.5
35
0.45012

421.7

48.5
40
0.61682
588.42
65.5
44
0.86991
760.04
...
º»¹®/³»¿ë
½ÇÇè °á°ú

¨çº¸Á¤ °ü°è½ÄÀ» ³ªÅ¸³½´Ù.
¾Ð·Âº¯È¯±â´Â manometer·Î ¾òÀº µ¿¾ÐÀÇ °ªÀ» Àü¾Ð(voltage)À¸·Î ¹Ù²ãÁÖ´Â ÀåÄ¡À̹ǷΠ¾Ð·Â°ú Àü¾ÐÀÇ °ü°è´Â ºñ·Ê°ü°è·Î »ý°¢ÇÒ ¼ö ÀÖ´Ù.
Pressure(Pa)¡ëA(x-B)
¡ë958.54(x+0.xxx44) where A : slope
B : intercept

¨èÃøÁ¤ÇÑ Data point¸¦ Ç¥·Î¼­ Ç¥ÇöÇÑ´Ù.

dzµ¿ ¼Óµµ(Hz)
Æò±Õ Àü¾Ð (V)
¾Ð·Â(Pa)
manometer value
(mm of water)
22
0.15626
137.3
19.5
30
0.31814
294.21
35.5
35
0.45012
421.7
48.5
40
0.61682
588.42
65.5
44
0.86991
760.04
83
48
0.97723
926.76
100

(Ãʱâ manometer value¡ë 5.5mm)
¨éData point¿Í Fitting ÇÔ¼ö(Least square fitting)¸¦ ÇϳªÀÇ Plot¿¡ ³ªÅ¸³½´Ù.

`` MATLAB ``
t¡ë0:0.1:1;
y¡ë958.54(t+0.xxx44);
plot(t,y)
grid on

¨êº¸Á¤ÇÒ ¶§ »ç¿ëÇÑ ¼Óµµ¿ÍÀÇ °ü°è¸¦ ±×·¡ÇÁ·Î ³ªÅ¸³»¶ó. dzµ¿ÀÇ ¿Âµµ´Â 10¡É·Î °¡Á¤Ç϶ó.
V¡ë

dzµ¿ ¼Óµµ(Hz)
Æò±ÕÀü¾Ð (V)
¾Ð·Â(Pa)
manometer value
(mm of water)
velocity(m/s)
22
0.15626
137.3¡¦(»ý·«)


ÀÚ·áÁ¤º¸
ID : dnlg****
Regist : 2013-12-11
Update : 2021-01-02
FileNo : 11082704

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