temperature sensor /anemometer

Anemometer/Temperature Sensor

12/31/2016 Mechanical department 1

Anemometer

- Definition- Velocity anemometer

- Cup anemometers- Vane anemometers- Ultrasonic anemometers

12/31/2016 Mechanical department 2

Velocity anemometer

• Cup anemometer (4cups)

4 cups

shaftWorm gear

“Dr. John Thomas Romney Robinson”

12/31/2016 Mechanical department 3

• Cup anemometer (3cups)

Velocity anemometer“John Patterson ”

Advantages:- Error of less than 3% up to 60 mph- Produced maximum torque when it was at

45° to the wind flow.- Had a more constant torque - Responded more quickly

12/31/2016 Mechanical department 4

• Vane anemometer

Velocity anemometer

12/31/2016 Mechanical department 5

• Vane anemometer (How it works ?)

Velocity anemometer

12/31/2016 Mechanical department 6

• Vane anemometer (with tail)

Velocity anemometer

12/31/2016 Mechanical department 7

• Vane anemometer (How it works ?)

Velocity anemometer

12/31/2016 Mechanical department 8

• Ultrasonic anemometer

Velocity anemometer

12/31/2016 Mechanical department 9

• 2D Ultrasonic anemometer

Velocity anemometer

Two ultrasounds paths Three ultrasounds paths12/31/2016 Mechanical department 10

• Acoustic resonance anemometers

Velocity anemometer

“Dr Savvas Kapartis “

12/31/2016 Mechanical department 11

• Acoustic resonance anemometers (How it works ?)

Velocity anemometer

12/31/2016 Mechanical department 12

• Ultrasonic wind sensors (Advantages)

1. not affected by inertia

2. Measure sudden change

3. More accurate

4. Less parts

5. More resisting on ice and weather conditions

Velocity anemometer

12/31/2016 Mechanical department 13

• Effect of icing

Velocity anemometer

Solution:They should be internally

heated

12/31/2016 Mechanical department 14

Temperature sensor

12/31/2016 Mechanical department 15

12/31/2016 Mechanical department 16

12/31/2016 Mechanical department 17

• Thermocouple

Temperature sensor

12/31/2016 Mechanical department 18

• Thermistors

Temperature sensor

12/31/2016 Mechanical department 19

• Semiconductor sensors

Temperature sensor

12/31/2016 Mechanical department 20

• Sensor ICs

Temperature sensor

12/31/2016 Mechanical department 21

• Digital Temperature Sensors

Temperature sensor

12/31/2016 Mechanical department 22

Thank you!

12/31/2016 Mechanical department 23