Data logger
- 1. SBI 3013 – INFORMATION AND COMMUNICATION TECHNOLOGY IN BIOLOGY DATA LOGGER : TRANSPIRATION Aisyah Nazurah Binti Mohammad Tamizi D2016207554 Kamilia Binti Salehuddin D20162075561 Suzica Johnny Jusim D20162075560 Lecturer: Dr Azmi Ibrahim
- 2. DATA LOGGER? A data logger is an electronic instrument that records measurements at set intervals over a period of time. Use in a variety of applications such as in-vehicle data logging, environmental monitoring, structural health monitoring, and machine condition monitoring. Common measurements include temperature, strain, voltage, current, pressure, force, and acceleration, light intensity, room occupancy and many more.
- 3. What is mean by transpiration Transpiration is the evaporation of water into the atmosphere from the leaves and the stems of plants. The plants are absorbed water from the roots to the shoots. Besides, transpiration is the process where the moisture is carried through plants from the roots to the small pores on the underside of the leaves and then released to the atmosphere as a vapour. Stomata are structure that involve in the transpiration process in plants.
- 4. Engage Why did we felt cold under the shade of a tree rather than the place that were exposed to sunlight ? Why this phenomenon occur ? Woah, so cold !!! Urgh, so hot !! Su, it is not fair for you to be under the tree while I am not
- 5. Empower Planning Doing Your Experiment Part 1 : Relative Humidity and Temperature Temperature sensor Humidity sensor Plastic bag Retort stand Data logger Computer
- 6. Empower Result Relative Humidity and Temperature Time interval: 1 min
- 7. Empower 1. What the cause the plastic bag to turn cloudy at the end of the experiment? 2. What is the small pores found underside of leaf? 3. Does the water content in plant influence transpiration rate? 4. What will happen to the leaf when transpiration rate is on maximum? 5. What happen to the transpiration rate when there is high humidity? 6. What happen to the transpiration rate when there is high temperature? Discussions Relative Humidity and Temperature
- 8. Enhance When should I water my plants?
- 9. ADVANTAGES The readings taken are high degrees of accuracy Readings are accurate because no human errors are introduced. can be set to take readings over a long time period of time, for example, the experiment that need hourly temperature reading everyday. can be set to take many readings in a short period of time can be used when there is a safety risk involved, for example, with the extreme cold or heat. Data logging provide better processing and presentation of results. Data collected can be processed by the specialist software or put into a spreadsheet - line, pie or graph. The report can then be saved and widely distributed in different ways, such as email, post, or fax.
- 10. DISADVANTAGES If the data logging equipment breaks down or malfunctions, some data could be lost or not recorded. The equipment also can be expensive for small tasks and will only take readings at the logging interval which has been set up. If something unexpected happens between recordings, the data will not be collected.
- 11. THE END THANK YOU