On 20th December 2011, this is the last lesson of Introduction of ESE which conducted by Dr. Kamal.
At that day, Dr.Kamal gave some briefing about the course of next semester which is digital electronic. The most interesting part was the exercise of binary numbers and communications Code worksheet.
After taught by Dr.Kamal, We learnt that this course is important because the machine only read in machine language which is 0 and 1 (binary numbers). The addition and subtraction of binary numbers gave us about the knowledge to play with the machine language.
We also learnt that the black dot represents the number of 1 and white dot represents the number of 0. This dot is stored in the computer system which will convert it to human language in the output.
For me, I will say that this Introduction to ESE is essential to us as the student of SMJE because we learnt a lot of things during the lesson and practical. Now, we all have some basic knowledge to this ESE and I will work harder next year. Thanks to Mr.Redzuan, Dr.Kamal and Dr.Rasli. I will never forget the lesson that had been taught.
Friday, 23 December 2011
Electric lesson
On 19th December 2011, this is the last lesson with Mr.Redzuan, yet we also have a unforgettable experience.
That day, we learnt that how to connect wire in the extension wire and fluorescent lamp.
This make me recall back the chapter electric in form 3 which taught about the three types of wire which are live, earth, and neutral. In 3-pin plug, the normal current that flow through is 13A. If exceed that, the fuse which located beside the live wire will automatically cut off the supply of electricity to protect the plug and electric device.
First, Mr.Redzuan demonstrate to us that how to connect the wire correctly.
After that, it was our show time. We do the wiring in a group of two. Chin and I connected the wire carefully without any careless mistake to affect the extension wire and fluorescent lamp to function. We followed the instruction to connect the live, earth and neutral wire in the extension wire and fluorescent lamp.
Within one hour, we managed to complete the wiring and surprisingly, it actually function while testing! We were so happy. Next, we proceeded to the last part which connect the wire in DC in the fluorescent lamp. We were all provided a DC “cok” and had to do some wiring on it. Chin and I did it in one shot also. Fortunately, it also functioned.
We all have fun to do the wiring as never try it before. Hopefully I can fix the extension wire and fluorescent lamp from now on.
That day, we learnt that how to connect wire in the extension wire and fluorescent lamp.
This make me recall back the chapter electric in form 3 which taught about the three types of wire which are live, earth, and neutral. In 3-pin plug, the normal current that flow through is 13A. If exceed that, the fuse which located beside the live wire will automatically cut off the supply of electricity to protect the plug and electric device.
First, Mr.Redzuan demonstrate to us that how to connect the wire correctly.
After that, it was our show time. We do the wiring in a group of two. Chin and I connected the wire carefully without any careless mistake to affect the extension wire and fluorescent lamp to function. We followed the instruction to connect the live, earth and neutral wire in the extension wire and fluorescent lamp.
Within one hour, we managed to complete the wiring and surprisingly, it actually function while testing! We were so happy. Next, we proceeded to the last part which connect the wire in DC in the fluorescent lamp. We were all provided a DC “cok” and had to do some wiring on it. Chin and I did it in one shot also. Fortunately, it also functioned.
We all have fun to do the wiring as never try it before. Hopefully I can fix the extension wire and fluorescent lamp from now on.
Monday, 19 December 2011
Final product of mini project
On Tuesday, early in the morning, my friends and I were already there to wait for Mr.Redzuan to open the workshop as we eager to continue our work on the mini project.
I continue soldered my components carefully onto my board.The solder part had to be careful as it cannot touch the other route on the board. If that happened, I would have to redo again from the first step. Also, I need to look out for the tips of the soldering tool. If the tips get darken, the solder on my cmponents will also be dark and not shinny. So, we shared the soldering paste to make the tips to become always in bright.
The most challeging part to solder is the soldering section for the circuit 2. The IC and other components such as LED and resistors is so small until I need to use the forceps to hold the components before I soldered them. With full of focus and carefulness, I soldered them nicely on the position.
Finally, after 2 hours, the final products of ny two circuit boards were completed. Although I do it a bit slow, I was very proud of myself as this was the first time that I produced a circuit board all by my own. And guess what? Both my circuit board function in good condition!! Can't believe it!!
This is the circuit board 1. For board 2, I submitted to Mr.Redzuan already after testing it. It was a lot of fun to do the practical work for circuit board and I nearly get addicted to do it. I hope that we can learned more things in the future.
I continue soldered my components carefully onto my board.The solder part had to be careful as it cannot touch the other route on the board. If that happened, I would have to redo again from the first step. Also, I need to look out for the tips of the soldering tool. If the tips get darken, the solder on my cmponents will also be dark and not shinny. So, we shared the soldering paste to make the tips to become always in bright.
The most challeging part to solder is the soldering section for the circuit 2. The IC and other components such as LED and resistors is so small until I need to use the forceps to hold the components before I soldered them. With full of focus and carefulness, I soldered them nicely on the position.
Finally, after 2 hours, the final products of ny two circuit boards were completed. Although I do it a bit slow, I was very proud of myself as this was the first time that I produced a circuit board all by my own. And guess what? Both my circuit board function in good condition!! Can't believe it!!
Mini project
Last week, it was the greatest experience I ever have as finally I can produce my own mini project. Under the guidance of Mr.RedZuan, we do the circuit design and the board by our own from the beginning step to the end.
Firstly, Mr Redzuan shows us about the video that gave us a briefing about the procedures to work on the circuit board.
After tear off the plastic on the circuit board, we use the cellotape to fix the position of our board outline on the board to prepare for the expose of UV ray. The time was set for one and half minute to expose the board outline on the board. Safety precaution was taken to avoid the blockage of the cellotape on the board outline.
Next, the board that had been fully exposed was ready to be developed. The chemical we used for developing is sodium and this chemical is essential to remove the green chemical surface (photorysis). By agitate the tray that contained the board and sodium liquid, we could see that the green surface was removed successfully.
Then, the etching process is the step that I hate most. The acid powder that needed to be colleted is burning my hand. Also need to be careful as the acid powder is poisonous that will cause the cancer disease.
After collected the acid powder, hot water was used to dissolve the acid powder in the tray to undergo the etching process. This process removed the copper area that are not needed on the board.
After that, 50% of our board is complete. The tools was provided for us to cut the board into seperate board for our group member.
The drilling process will be the next step for us. This process make holes on the board for the through-hole components. The pacs that have the symbol of hole on the board were the places that need to be drilled. This technic was also been taught by Mr.Redzuan to avoid the misuse of the drilling tools as the needle that use to drill is easy to being broke if we use the wrong method to handle.
Then, we need to assemble the components on the board before we soldered the components on the board. This two processes were the processes that took us for a long time. Mr.Redzuan showed us the correct way to solder the through-hole components and SMD on different boards. But due to the lack of time, we only manage to do it to the halfway on Monday and Mr.Redzuan allowed us to continue our work on the following day.
Firstly, Mr Redzuan shows us about the video that gave us a briefing about the procedures to work on the circuit board.
After tear off the plastic on the circuit board, we use the cellotape to fix the position of our board outline on the board to prepare for the expose of UV ray. The time was set for one and half minute to expose the board outline on the board. Safety precaution was taken to avoid the blockage of the cellotape on the board outline.
Next, the board that had been fully exposed was ready to be developed. The chemical we used for developing is sodium and this chemical is essential to remove the green chemical surface (photorysis). By agitate the tray that contained the board and sodium liquid, we could see that the green surface was removed successfully.
Then, the etching process is the step that I hate most. The acid powder that needed to be colleted is burning my hand. Also need to be careful as the acid powder is poisonous that will cause the cancer disease.
After collected the acid powder, hot water was used to dissolve the acid powder in the tray to undergo the etching process. This process removed the copper area that are not needed on the board.
After that, 50% of our board is complete. The tools was provided for us to cut the board into seperate board for our group member.
The drilling process will be the next step for us. This process make holes on the board for the through-hole components. The pacs that have the symbol of hole on the board were the places that need to be drilled. This technic was also been taught by Mr.Redzuan to avoid the misuse of the drilling tools as the needle that use to drill is easy to being broke if we use the wrong method to handle.
Then, we need to assemble the components on the board before we soldered the components on the board. This two processes were the processes that took us for a long time. Mr.Redzuan showed us the correct way to solder the through-hole components and SMD on different boards. But due to the lack of time, we only manage to do it to the halfway on Monday and Mr.Redzuan allowed us to continue our work on the following day.
Sunday, 11 December 2011
A visit to Canon OPTO Malaysia Sdn Bhd
On 6/12/2011, our course had a visit to the Canon OPTO Malaysia Sdn Bhd. Early in the morning, we depart to the factory from the canteen of KSJ by UTM bus.
Once arrived there, we were shocked to see how big the factory about.
The picture above only shows a part of the building.
After we entered the building, the staffs there gave us a briefing about the history of the Canon Opto Malaysia Sdn Bhd and some safety precautions about the visit. The first camera made by kwanon (name of Canon at that time) was in 1934. In 1935, the name of kwanon was changed to Canon. In 1969, the company changed name from Canon Camera co.Inc to Canon Inc.
In 2010, the net sales of Canon OPTO Malaysia Sdn Bhd was USD 45764 million and net income was USD 3044 million. The total employee of Canon was 197386 paxs.
The products of the Canon were digital camera, EF lenses, video lens Unit, optical lenses (including Penta Prism). According to the staff, they will change the model of their products every year to meet the demand of the world. They also emphasize the quality of the products as the HQ of their company is very strict. Local workers and foreign workers (Sri Lanka, Indonesia and Vietnam) cooperate each other to produce the best products to the world.
After the briefing, we had the breakfast at the canteen there.
After having the breakfast, we entered the factory to see the running process of the whole factory. It divided into two sections to manufacture the digital camera and the lenses. Very sorry to say that we cannot take photo inside the factory. It is kind of confidential…
When we entered it, a funny smell of chemical choked our nose very soon. At that moment, I recalled back the time I worked in the electronic factory that manufacture the circuit panels during form 4. I used to be worked in line to print the PCB by using the printers. And guess what! I also found that the factory also using the line system and printers to manufacture the products. However, as it is the branch of the Japan companies, the machines that used in it are very advanced and expansive. According to the staff, the prototypes of the lenses that produced are cheap. But after using the expensive machines to manufacture the prototype, it becomes expensive.
At there, we managed to see about how the line processes the digital camera. Beginning from the components, it processes to become the combination of the components on the PCB and finally to the final product, a complete camera. The workers there work very serious and in a professional way. I can see how fast they work and although we are there, they seem not affected and continue to do their work like we didn’t exist. These working ethnics are worth to be learnt if we want to be successful in our career which is engineer in the future. The digital camera that we found there are in black and pink in colour. The staffs also say that they set a program in the products which need to be unlocked first before using the camera. This precaution is to avoid the workers to steal the products out of the factory although there have a few metal detectors at the entrance. They also use the theory of the reflection angle and reflective index to test and ensure that the digital camera and lenses do not have flaws and malfunction.
We also visit the lenses manufacturing section to see about how the lenses made. There are four processes to manufacture the lenses which are grinding, smoothing, polishing and coating. They used a brown liquid chemical and machines to undergo the first three processes. The coating process is executed in a room that contains full of the gigantic and complex machines in it. The staff explained that this process eventually increases the price of the lenses dramatically. The extremely hot temperature is used to coat the lenses by the machines. Too bad that I cannot take some photo of them…
About the strength of the Canon, I will say that it will be certainly about their quality of the products. Look at those spirits of the worker to work and they know that the procedures to manufacture the products cannot be neglected. All of them work in a systematic way with speed and precise. About the weakness of the Canon, the products of the factory are very limited as the license to manufacture the products under the name of Canon has to be approved by Japanese company.
After receiving the souvenir from the Canon, we finished our trip with full of satisfaction. We go back to KSJ at around 2.30pm and this will certainly become a great experience in our entire life.
Saturday, 3 December 2011
New tools coming !!
On 29 Nov 2011 (Tuesday), I had a big surprise from Mr.Redzuan. At first, my friends and I were asked to go to MJIIT office to take some equipments. Then I started thinking : what are the things that need four of us to carry? Guess what? That's the materials for us to do the mini project.
After that, we also received an awesome tools bag which contains screwdriver, solder wire, sucker and the others. The most important thing is we actually have the chance to use the new pack of tools. HAHA... Glad to be the first year. I promised that I will take good care of them...
Besides that, we also received the new multimeter and soldering stand. We played around them and rearrange the parts of thm into a complete one.
Others than that, we also received the new electric components from Mr.Redzuan such as LED, transistors, capacitors and the others. The two set of components that we received consists of TH and SMD.
After receiving the components and tools, Mr.Redzuan gave us a brief explaination and demonstration of how we are going to do using these components. Now, I know that the soldering parts need a longer time to process. The video that Mr.Redzuan showed us was also interesting. It was a the procedure to prepare the board for the components.
After that, we also received an awesome tools bag which contains screwdriver, solder wire, sucker and the others. The most important thing is we actually have the chance to use the new pack of tools. HAHA... Glad to be the first year. I promised that I will take good care of them...
Besides that, we also received the new multimeter and soldering stand. We played around them and rearrange the parts of thm into a complete one.
Others than that, we also received the new electric components from Mr.Redzuan such as LED, transistors, capacitors and the others. The two set of components that we received consists of TH and SMD.
After receiving the components and tools, Mr.Redzuan gave us a brief explaination and demonstration of how we are going to do using these components. Now, I know that the soldering parts need a longer time to process. The video that Mr.Redzuan showed us was also interesting. It was a the procedure to prepare the board for the components.
Although the last one hour we can't managed to undergo our work due to the UV generator was locked inside a room and the others had to use the workshop place, we had a good experience and happy hour with Mr.Redzuan.
Subscribe to:
Posts (Atom)