Digital Thermometers and Thermocouples Quiz

Study Notes

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Explain Principles of mechatronics system
Describe current technologies of electrical, pneumatic, hydraulics drives
Assess and evaluate the characteristics of mechatronics control machine
Assess and evaluate the characteristics of mechatronics computer numerical control machine
Apply modern engineering tools related to mechatronics

A matrix which provides specifications for content topics, weeks, knowledge and understanding, intellectual skills, professional and practical skills, and general and transferable skills.

Objectives: Explain mechatronics, its relevance in engineering design, systems, measurement systems and elements of open-loop and closed-loop control systems
What is mechatronics?: A combination of 'mecha' (mechanism) and 'tronics' (electronics)
Mechatronics System: A concurrent integration of mechanical engineering with electronics, and intelligent computer control.
Mechatronics Design Process:
- The need
- Analysis of the problem
- Preparing a specification
- Generating possible solutions
- Selection of solution
- Production of a detailed design
- Production of working drawings

Modelling systems: Predicting a system's behavior when inputs occur.
Connected Systems: Systems with multiple interconnected blocks.
Measurement systems: Sensor (responding to the quantity measured), signal conditioner, and display.

Feedback: Signals fed back to modify output, ensuring it meets the required value.
Open loop: No feedback; output not affected by the output.
Closed loop: Feedback; output affects the input to maintain a consistent output.

Objectives: Description of sensor performance, classification, and evaluation in various measurements (motion, position, force, flow, and temperature).
Sensor Types: Analog (continuous) and Digital(discrete) sensors. Active (needs external power) and Passive. Deflection and Null types.
Quality Parameters:
- Sensitivity
- Resolution
- Accuracy
- Precision
- Backlash
- Repeatability
- Linearity
Instrumentation System: Sensors, signal conditioner, display, and feedback sensor.

Objectives: Explain signal conditioning, elements of data acquisition and control systems, and practical aspects of computer interfacing.
Data Acquisition and Control System:
- Elements involved in real time interfacing of the computer with a device
Real time interfacing: connecting a computer to a real-world process.
Data acquisition: converting real-world data (motion, temperature) into electrical signals that computers can read.
- Types of I/O process
- Direct memory access (DMA)
- Interrupt request (IRQ)
- Programmed I/O (PIO)
- Memory mapping

Objectives: Evaluating the operational characteristics of electrical actuation systems (relays, solenoids, d.c. motors, a.c. motors, steppers), explain DC motor principles (permanent magnet, brushless), and variable reluctance, permanent magnet, and hybrid stepper motor forms.
Electrical Systems:
- Switching devices (mechanical and solid-state) to turn on/off devices or circuits.
- Electromagnetic based devices such as Solenoids in hydraulic/pneumatic systems.
- Actuators like motors for rotational motion.