Your SlideShare is downloading. ×
Data logging
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Data logging

73

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
73
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. INFORMATION AND COMMUNICATION TECHNOLOGY IN SCIENCE SBB3013
  • 2. • An electronics instrument that Data record measurement • Characteristics:logger the ability to take sensor measurement and store the data
  • 3. • The process of using a computer to collect data Data through sensors, analyzelogging the data and save and output the result of the collection and analysis.
  • 4. COMPONENTS OF DATALOGGING.
  • 5. SPEED OFSOUND..
  • 6. SPEED OF SOUND This experiment describes the use of the ADC -212 virtual oscilloscope to measure the speed of sound.
  • 7. Scientific concept : The speed of sound is the distancetravelled during a unit of time by a soundwave propagating throughan elastic medium. In common everyday speech, speed ofsound refers to the speed of sound wavesin air. However, the speed of sound variesfrom substance to substance. Soundtravels faster in liquids and non-porous solids than it does in air.
  • 8. Last weekend, my family and I decided to go toGua Kelam in Perlis. As we walk through the cavethere is a lot of nice things to watch. Then, I noticesomething interesting, when we talk through thecave, we can hear our voice be reflected. We hearour own voice echo. Why this happened? I alsonotice the same phenomena when I talk in emptyhouse or when I shout in the tunnel. How can thishappen and what is the cause?
  • 9. EMPOWEREquipment required2 microphones-crystal Mics were used since they are cheap and give a large output1 metre wooden ruleFast digital storage oscilloscope-the ADC-212 was usedA balloon-to burst for a sudden loud sound source
  • 10. Experiment set upThe experiment was set up as shown below with two crystal microphones placed 1 metre apart
  • 11. Results : The balloon was burst approximately 2 m away from the foremost Mic. The plot below shows the results clearly. The lefthand “BLUE” trace is from the fpremost Mic (Mic 1) and the righthand “red” trace is from mic ( Mic 2) The waveform from Mic 1 between -164µs and 500 s is clearly visible in the trace from Mic 2 delayed by 2929 µs. There is second variation , in the waveform from Mic 1, around 1.5 ms caused by an echo from one wall or ceiling.
  • 12. ENHANCE Telling how far away a person with a starter’s gun, at a running race, is by comparing the time difference from when you can see the gun’s smoke to when you hear the sound. Telling how far away a cliff is by making a sound and measuring how long it takes for the echo to return Telling where an enemies gun was fired. Telling how far away a lighting strike.
  • 13. CONCLUSION The speed of sound wave refers to how fast the disturbance is passed from particle to particle. Frequency refers to the number of vibrations that an individual particle makes per unit of time, speed refers to the distance that the disturbance travels per unit of time. Data logging is commonly used in scientific experiments and in monitoring systems where there is the need to collect information faster than a human can possibly collect the information and in cases where accuracy is essential.
  • 14. THANK THANK YOUYOU

×