Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

FrozenGate by Avery

Not quite sure how to do this, fiber optic cable help

I think this is an IR distance measuring unit, it uses a pulsed light source to distinguish it's signal from the background and has two photodiodes to collect and backrefelcting light.
Those two photodiodes have lenses in front of them, but they "look" in different directions. So depending on the distance of and object in front, either the left or right photodiode will give a signal. Because the laser is slightly to the side, the light will come from the side if an object is close, but almost straight on if the object is far away.
Moving the light source or detector would change this principle. So unless this is a different device than I think it is, fibers aren't the way to go.
 





Bluefan said:
I think this is an IR distance measuring unit, it uses a pulsed light source to distinguish it's signal from the background and has two photodiodes to collect and backrefelcting light.
Those two photodiodes have lenses in front of them, but they "look" in different directions. So depending on the distance of and object in front, either the left or right photodiode will give a signal. Because the laser is slightly to the side, the light will come from the side if an object is close, but almost straight on if the object is far away.
Moving the light source or detector would change this principle. So unless this is a different device than I think it is, fibers aren't the way to go.
Click to expand...

Close, the source of the light the sensors are looking for comes from a laser that measures distance over time and then calculates speed. The laser diodes in the unit pictured above then send out pulses to confuse the speed measuring device so it can't measure distance/speed of the object my sensors are mounted on ;)
 
Brilliant... so when you're riding your bike down the street at speeds so dangerously slow, anything with laser vision just sees you as a messy blur.. I like it. Interesting use of fiber optics! I hope your project turns out for the best!
 
Meatball said:
Brilliant... so when you're riding your bike down the street at speeds so dangerously slow, anything with laser vision just sees you as a messy blur.. I like it. Interesting use of fiber optics! I hope your project turns out for the best!
Click to expand...

haha you got the right idea thanks
 
Riptide said:
Close, the source of the light the sensors are looking for comes from a laser that measures distance over time and then calculates speed. The laser diodes in the unit pictured above then send out pulses to confuse the speed measuring device so it can't measure distance/speed of the object my sensors are mounted on ;)
Click to expand...
Sorry, I'm not gonna help you avoid speed tickets and probably breaking the law. Have fun and take care.
 
Bluefan said:
Sorry, I'm not gonna help you avoid speed tickets and probably breaking the law. Have fun and take care.
Click to expand...

I understand your position. Just to clarify the speeding part is the only aspect of this that is actually breaking the law. Where I currently live anyway.
 
Riptide said:
I understand your position. Just to clarify the speeding part is the only aspect of this that is actually breaking the law. Where I currently live anyway.
Click to expand...

When the LIDAR reads "E7", //range gate error or jamming//, let us know how the cop treats you.


Steve
 
You must log in or register to reply here.


Back
Top