Accelerationvelocityposition Outline Accelerometers Velocity Position Misc Material from
- Slides: 28
Acceleration-velocity-position Outline - Accelerometers - Velocity - Position + Misc!! Material from • Fraden chap. 7 • Fraden chap. 8 • Wikipedia • Web – Analog Devices – MEMSIC • SINTEF
Position – velocity - acceleration Oscillatory motion • Position • Velocity • Acceleration Consequence 1: low frequency -> measure position or velocity high frequency -> measure acceleration
Consequence 2 Velocity Acceleration • Plotting position amplitude emphasizes low frequencies • Plotting acceleration emphasizes high frequencies Fig 3: Bearing damage Fig 2: Misalignment Frequency Velocity is the usual compromise
Acceleration -> Position • Acceleration is independent of inertial system • Can be measured without reference • Can be measured in a closed container Position can be found by integrating twice:
BUT => Measure position if you can Or, get a grip on your errors
Accelerometer approaches Piezoelectric d e orc se a b /f s s re St Measure F • Compression • Bending Piezoresistive Parallell plate Comb AC Capacitive (Optical) Measure x (Magnetic) Measure v Inductive Thermal DC FP Cantilever Fiber
Capacitive spring based
Capacitive finger Analog Devices
Piezoresistive accelerometer
Piezoresistivt akselerometer 2
Termisk masse (luft) http: //www. memsic. com/memsic/products/technology. html
Magnetic velocity measurement
Potentiometric level sensor
Tilt sensors
2 D tilt sensor
Linear variable differential transformer LVDT
Eddy current sensor
Permanant magnet - Hall sensor
Permanent field 1
Permanent field 2
Position sensitive detector
Linear -> Rotary
Position encoders
Ultrasound time of flight
Impedance matching
Triangulering - GPS Wikipedia
- Misc jeopardy questions
- Japanese jeopardy
- Difference between 1099 misc and 1099 nec
- Ballet terms and positions
- Darcy velocity equation
- Linear acceleration and angular acceleration
- Initial velocity and final velocity formula
- Is v final velocity
- Final velocity initial velocity acceleration time
- Instantaneous velocity vs average velocity
- Darcy law example
- Rotational motion and the law of gravity
- Tangential speed
- Is velocity the derivative of position
- What does constant acceleration mean
- Angular position velocity and acceleration
- Constant velocity position time graph
- Sandwich paragraph example
- Basic geometric features of symbology
- Variance analysis meaning
- Non material culture definition
- Non material culture examples
- Material and non material culture examples
- Useful materials meaning in science
- Model un position paper outlines
- Fundamental position vs anatomical position
- What is fundamental position
- Centerline velocity formula
- Application of wjm