Monday, October 25, 2010

Module 3- Force, Weight and Pressure Measurments

Dear Students,
You need to solve the two assignments below:
Assigment 1
a car is moving/climbing a an inclined surface of an angle 30 degrees, if the acceleration of the car is 3 m/s2 and the car mass is 1200 kg:
answer the following questions:
  • The forces that affects the car motion.
  • Calculate the engine propelling force , assuming only the friction force, the engine force and the gradient force affects the car motion.
Assigment 2
Identify a real-life example of force/weight/pressure measurement. Create a Wiki, a poster or a brochure describing the following:
1. Real life application/example.
2. Role of force, weight and pressure measurement in that system.
3. Force, weight and pressure measuring instruments used in this application.

You can refer to the following website for ideas:
http://www.tekscan.com/flexiforce/applicationlist.html

Module 2_Measurments and Error Analysis

Dear Students
The diameter of a wire was measured by a group of students with a micrometer, and the following readings were recorded:
2.65, 2.64 , 2.63 , 2.69, 2.66 , 2.7 , 2.71, 2.62 , 2.62 , 2.60

Calculate
  • the average
  • the standard deviation
  • calculate the accuracy, if the true value is 2.65.

Wednesday, October 13, 2010

Module 1 _Engineering Systems & Control

Dear Students.
Answer the following questions:
  1. Based on the diagram below list the main components of a closed loop control system.
  2. Name four sensors and list there applications.