Thursday, November 29, 2012 - 0 comments

Development Of LabVIEW

assalamualaikum....
hye beloved readers,,
how do you do... its your day ok hehhe<<
for this post  i will share with You the development Of LabVIEW.
most Of the LabVIEW problem i will discuss wth my beloved advisor,Madam Rohaida and our Technician Mr azman and Mr shahrul.\





this is a part of development process of LabVIEW. on the next post i will share with u guys the full result of My project.. are you ready for that.. keep update wth me~~~~bye


- 0 comments

Development Of ProtoType

assalamualaikum guys,,,
for this post i will share with you the picture during the development of prototype for my project..

















for my project im using the mini aquarium to prepared the prototype farm.. include with the pum, sensor and motor.. hope you guys enjoy with it...
see u in the next post..bye~~~
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Testing Of The Humidity sensor performance


assalamualaikum wbt..
hye guys for this post we will focusing on the testing with the Humidity and temperature sensor before im install it in our system...Mutimeter has been used to determine the value produce by both sensor and the it will compare with the datasheet

Temperature sensor and Humidity sensor
              For this project we have two inputs which is humidity and temperature sensor. Both input will affected certain outcome of the output. The measured data need to be compared with the datasheet to ensure that sensor will produced the expected outcome.
Result:
Thermistor sensor
Temperature
(ºC)
R1 (Ω)
R2 (Ω)
Datasheet(V)
Measurement (V)
Measurement (ºC)
0
32554
10k
1.2
1.4
0
10
19872
10k
1.5
1.7
15
20
12488
10k
2.2
2.5
23
30
8059
10k
2.6
2.8
26
40
5330
10k
3.8
3.5
38
50
3605
10k
4.6
3.9
48
60
2490
10k
4.8
4.2
54
70
1753
10k
4.9
4.4
66
80
1256
10k
5.2
4.6
70
Thermistor sensor Test
 Graph Voltage Output from datasheet and Measurement (Thermistor)

Humidity sensor Module (HSM-20G)
Humidity (%RH)
Datasheet (V)
Measurement (V)
10
0.74
1.02
20
0.95
1.20
30
1.31
1.50
40
1.68
1.82
50
2.02
1.98
60
2.37
2.36
70
2.69
2.67
80
2.99
2.98
 Humidity sensor Test
 Graph Voltage Output from datasheet and Measurement (Humidity)

From the result obtained, it shows the output of both sensors based on the value the datasheet and measurement has done practically. Both value has shown a different when measured but not to significant between them.
            For thermistor sensor, it was tested based on several conditions at low and high surrounding temperature in the morning and evening. For this sensor also, it was tested the temperature reading for measurement. The value obtained from the measurement was compared with the value from datasheet. For thermistor, it will use the voltage divider formula:

For Humidity sensor, it will use this formula to calculate output.

This sensor will be tested based on certain range in order to compare the value from datasheet with practical measurement. From this work, the values of practical measurement are quite close to the theoretical 







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