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Tech Systems UNIT 3 Technological System Interactions Lesson 2 - Controlling Technological Systems. Exploration. Analytical System: A system that mathematically or scientifically make comparisons . Judgmental Systems: A system that uses human opinions and values .
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Tech SystemsUNIT 3 Technological System Interactions Lesson 2 - Controlling Technological Systems Exploration
Analytical System: A system that mathematically or scientifically make comparisons. • Judgmental Systems: A system that uses human opinions and values. • Judgment may be based on intuition—human ability to sense or know immediately without reasoning.
Determining when to stop filling a glass with milk. Judgmental • Checking to see if there are too many people on the boat, over the legal limit. Analytical • Weighing suitcases to see if they are light enough for the airplane. Analytical • Identifying how long you should wait before eating again. Judgmental • Measuring a fish to see if it is a “keeper”.Analytical
Explanation • 1. Analytical and judgmental systems are two kinds of data Comparison. • 2. Control systems are comprised of three main parts: • Monitoring Devices • Data-comparing Devices • Adjusting Devices 3. a)Monitoring devices are systems that collect information from all stages: input, process, output, and feedback. The information can be precise (such as exact temperature) or general (there is a rattle coming from the left side of the engine).
b) A variety of sensors are commonly used in technological systems to monitor the processes of a system. These include: thermal, optical, electronic, electromagnetic, and mechanical sensors. • 4. In your student journal make a list of various types of sensors found in your daily life and classify them (thermal, optical, electronic, electromagnetic and mechanical). • to monitor the processes of a system. These include: thermal, optical, electronic, electromagnetic, and mechanical sensors.
5. Data-comparing devices: analyzes and compares information from monitoring devices to the desired result. Example: An optical sensor (monitoring device) may detect where paper is located in an inkjet printer. Software will determine if the paper is in the proper location or if it needs to be advanced or rolled back. The comparing can be done by a device or by a person.
6. Adjusting Devices: are used to make changes to a system based on the results of the comparison. In the previous example of the inkjet printer the software controlling the motors to move the paper in or out is the adjusting device.
7. Mechanical Technology: is the assembly of mechanical components to produce, control, and transmit motion. Mechanical: operated by or using a machine or mechanism.
8. Identify and describe applications of mechanical technology in the designed world.