Optical sensor
Transcript of Optical sensor
![Page 1: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/1.jpg)
By ABDUL LATHEEF M AROLL NO : 1S7 EI
![Page 2: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/2.jpg)
CONTENT INTRODUCTION OPTICAL SENSOR
PARAMETERS MEASUREMENT PLOTS OF LED MOUNTING OF SENSOR TILT ANGLE HOW TO MEASURE TILT ANGLE? SIGNAL PROCESSING RESULTS ON RACETRACKS
ADVANTAGES DRAWBACKS APPLICATION CONCLUSION REFERENCE
![Page 3: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/3.jpg)
INTRODUCTION
New technology in Modern vehicles to enhance safety
Anti Lock Braking System (ABS)
Tilt angle (Roll angle) – crucial variable to determine
motorcycle behavior
Represents the amount of inclination to ensure the force balance
![Page 4: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/4.jpg)
The technology uses a sensor to measure tilt angle at
real-time
Tilt angle is a by product of GPS but does not provide at
real-time
Optical sensors are suitable as technologically as well as
economically for racing applications
![Page 5: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/5.jpg)
OPTICAL SENSOR
![Page 6: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/6.jpg)
PARAMETERS
Measurement range : 15-100cms
Output voltage : 0.5-2.5 volts
Emitters : LED, LASER
Average output power : 0.1mW
![Page 7: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/7.jpg)
MEASUREMENT PLOTS OF LED
![Page 8: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/8.jpg)
MOUNTING OF SENSORS
![Page 9: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/9.jpg)
TILT ANGLE
Definition : Angle represents the amount of inclination that
the bike needs in order to ensure the
force balance during the curved trajectory
and hence to reach a steady state cornering
condition .
![Page 10: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/10.jpg)
HOW TO MEASURE TILT ANGLE?
![Page 11: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/11.jpg)
Tilt angle ( ϕ )= arctan((d1 − d2)/L)
d1 = Ho + L/2 tan (ϕ)
d2 = Ho - L/2 tan (ϕ)
Where, L :- Lateral displacement b/w the 2 distance sensors Ho :- Distance b/w each sensor and the ground when
the bike axis is vertical d1&d2 :- Distance b/w the marked points and the
ground
![Page 12: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/12.jpg)
SIGNAL PROCESSING
![Page 13: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/13.jpg)
RESULTS ON RACETRACK
![Page 14: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/14.jpg)
ADVANTAGES Small size Low cost Low weight <10 gm Variable range depending on mounting condition Accurate measurement
![Page 15: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/15.jpg)
DRAWBACKS LED emitter suffers too much from solar
interference LED not adequate for real-time measurements at
high motorbike speeds Roughness of roads make noise interference
![Page 16: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/16.jpg)
APPLICATION
Tilt angle measurement in sports bikes
![Page 17: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/17.jpg)
![Page 18: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/18.jpg)
CONCLUSION Optical sensors are used to measure tilt angle LED and LASER emitters are used LASER is used more than LED Sensors must be mounted at a reliable distance
from the ground
![Page 19: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/19.jpg)
REFERENCES IEEE WIKIPEDIA
![Page 20: Optical sensor](https://reader036.fdocuments.in/reader036/viewer/2022081419/55891959d8b42aef7c8b4586/html5/thumbnails/20.jpg)
Thank You