1. Home
  2. Hobby Electronics Basics
  3. ultrasonic sensor

ultrasonic sensor

Hi, Would like to construct a project, evolving ultrasonic sensor.

1) The sensor is supposed to be in harsh environments, with air turbulance. Does any one has suggestions how to over come this problem? The turbulance source is 3 meters from the sensor, while the target is 10-15meters away. 2) I am searching the web for days, but didn't find much, maybe you can

help me: looking for an ultrasonic sensors with range 12m. 15m is better. weight

Reply to
hananl
Loading thread data ...

--
Please bottom post.

1.What\'s your application?  That is, what are you trying to do? 

2.Describe your environment more fully.
Reply to
John Fields

You would need cancel the noise, with another sensor that picks the noise up. Use a negative feedback to cancel the noise, in your case turbulence.

Sort of like stereo photography gives you that 3 d effect..

hananl wrote:

Reply to
ray13

Distance measurement. Environment - sensor will suffer from harsh vibrations on the surface where it is standing. target is moving in low velocity (40km/hour) 15 meters away and need to be detected. lots of air turbulance. perhaps high humidy, perhaps rainy. (system suppose to work all year).

Reply to
hananl

Reply to
hananl

I would strongly recomend using a laser range finder instead. It will cope in all of the conditions stated above.

Brendan

Reply to
Brendan Gillatt

finder instead. It will

Reply to
hananl

RF is probably your best bet. Rain and wind will cause noise issues even at ultrasonic freqs, will they not?

Reply to
Randy Day

Bottom of what? It's an Original Post. ;-)

Yeah, I want to know these things also. I'm thinking Polaroid sensors, like that guy used on the Gossamer Albatross - that was probably fairly turbulent!

For just pinging, I'd think OP could just sync the xmitter with the receiver - at least tune the receiver(s)!

Cheers! Rich

Reply to
Rich Grise

Sounds like you need to talk to the battle-bot people. :-) Or whatever outfit it was that had that robot car race not too long ago. There might already be something like this, for the military, but if so, it'd be "burn before reading" classified. =:-O

Good Luck! Rich

Reply to
Rich Grise

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.