This video is a simple and straightforward explanation of the electronics of an ionization type smoke detector. It describes how a transistor called MOSFET can be used to detect the tiny current changes.
Type of Material:
Animation (video)
Recommended Uses:
This material can be used as part of a course where the instructor recommends and also by individual user who are curious to learn how a smoke detector works.
It can be recommended for courses on electronic devices in electronics engineering topics. Useful for traditional and hybrid/blended teaching
Technical Requirements:
Mozilla Firefox, Google Chrome and Microsoft Edge browsers were used to access the material. It seems that all facilities are active for any browser.
Identify Major Learning Goals:
The major goal is to present the operation of a smoke detector. It combones the theoretical aspects with the practical operation. It is a real engineering material.
Target Student Population:
High School, College General Ed, College Lower Division, Technical School Students.
Prerequisite Knowledge or Skills:
General knowledge of physics and of electronic circuits.
Content Quality
Rating:
Strengths:
Introductory ideas about how a smoke detector works using a radioactive source and a transistor MOSFET. The video clearly explains the main concepts and provides accurate information on the topic.
The topics addressed in a direct and precise manner. The explanations are clear and supporte by images and schematics.
Concerns:
The are two concerns and both are related to accessibility. The first is that there is a sound track to explain the material and it is not captioned; a deaf user misses all the explanation. The second is that the video cannot be seen by a blind person.
Potential Effectiveness as a Teaching Tool
Rating:
Strengths:
The material could be used for self-learning as well as a supplementary material in traditional or blended/hybrid courses on electronics. The learning objective is clearly stated. Physical phenomena are presented visually, easy to understand.
The material is a "bridge" between physics, engineering and the real world.
Concerns:
Cannot be used as a standalone material. To become useful for effective learning it should be combined with extra exercises and quizzes, or to become integral part of additional lectures on the topic of electronics.
If a student lacks the minimum background, the instructor may be needed to close the gap.
Ease of Use for Both Students and Faculty
Rating:
Strengths:
It is a video and all is necessary is to play it.
Concerns:
Limited interactivity. Image quality could be improved.
Creative Commons:
Search by ISBN?
It looks like you have entered an ISBN number. Would you like to search using what you have
entered as an ISBN number?
Searching for Members?
You entered an email address. Would you like to search for members? Click Yes to continue. If no, materials will be displayed first. You can refine your search with the options on the left of the results page.
Searching for Members?
You entered an email address. Would you like to search for members? Click Yes to continue. If no, materials will be displayed first. You can refine your search with the options on the left of the results page.
