IR sensor, ultrasonic sensor, sonar sensor

[gouri]

hi,
plz suggest me a good IR sensor available in India..
actually i am making an autonomous robot..
and i am sure wit the knowledge u all hav u can surely help me...

 

[engqusai]

thanks alot

 

[samyu]

hiiii

could u tell me 'what does TSOP mean in an TSOP 1738 IR sensor'

 

[Sceadwian]

Thin Small Outline Package.

 

[samyu]

tanku........

 

[tarun2121]

how can i measure distance (not more than say 10 cms) using an IR sensor?

 

[Krumlink]

how can i measure distance (not more than say 10 cms) using an IR sensor?

would the range be 0-10cm?

 

[tarun2121]

ya, it will be 0-10 cms..

 

[Krumlink]

you may want to use a 38khz ir led and a phototransistor pair.

 

[Sceadwian]

Using IR as a distance sensor will produce different apparent distances for object of different colors.

 

[grimham]

with relation to the main discussion, how is it an aid for the blind if they have to "read" and lcd screen to "see" the distance of an object in front of them?

haha just curious how that works.