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Topic: Ultrasonic Waves (Read 2342 times) previous topic - next topic

bordeaux270993

Hello,

First, sorry for my poor english.

I would like to use an ultrasonic Transmeitter/Receiver separatly. I mean i don't want a transceiver like this one: SRF05.

I would like to plug a transmitter (400ST120 for instance) on ONE Arduino and a receiver (400SR120) on an SECOND Arduino.

My question is: how do i connect them to the arduino. And how did i manage to send a wave and to receive it?

My second question: Will i need amplifier pass Band filter or other electronics component?


Thanks for helping me, i hope i make myself understood.

Yours faithfully.

OldSteve

#1
Jul 07, 2016, 10:44 am Last Edit: Jul 07, 2016, 10:47 am by OldSteve
On the transmitter side, you need to provide a signal at 40kHz. Preferably at a voltage higher than 5V for maximum range. (The 400ST120 is rated for 20Vrms, (56.6Vp-p).)

On the receiving side you need an amplifier and band-pass filter or tone decoder etc. as you say.

Using these transducers is not trivial, but a Google search will reveal plenty of potential circuits.
Please do not PM me for help. I am not a personal consultant.
And others will benefit as well if you post your question publicly on the forums.

bordeaux270993

Ok i understand but i am not pretty sure to know how handle it.

I find a publication where they use this transmeitter and receiver. i have a picture of a circuits, but there

is a lot of component and i am not sure they are all useful. The picture of the circuit is attach. I'm not

really good in analogic electronics, can you tell me what you think about it and if it i have to go with this

for the realisation of my project.


I want to use it with an arduino so i am not sure that i can provide more than 5V, will it be a problem?

Thanks for helping me.

OldSteve

I can't help further. I have no idea how well that circuit will perform. Ideally you need to build it as a test circuit, maybe on a breadboard, and see how it performs.

Regarding driving the TX transducer with 5V, again, I don't have the answer. You probably won't get much range.
Ideally, you should make a driver stage powered by a higher voltage, then use a timer or PWM on the Arduino to generate the 40kHz waveform.
Please do not PM me for help. I am not a personal consultant.
And others will benefit as well if you post your question publicly on the forums.

Whandall

I would like to use an ultrasonic Transmeitter/Receiver separatly.
Please explain how you want to use such an arrangement.

What are you trying to achieve?

Merely bedazzling bats would not need a receiver.
Ah, this is obviously some strange usage of the word 'safe' that I wasn't previously aware of. (D.Adams)

bordeaux270993

Ok! Thanks anyway. I think it will be more difficult than i was expected!

I will do my best thanks for the information.

Whandall

I think it will be more difficult than i was expected!
What is 'it' ?
Ah, this is obviously some strange usage of the word 'safe' that I wasn't previously aware of. (D.Adams)

bordeaux270993

I want to get the position of an object which is in movement. This object (i will call it O1) will be holding

an US transmeitter and a RF tranceiver. On the ceil i will set up many US receiver (R1) with a main

receiver with a RF tranceiver (R2).


O1 send a RF wave which is received by R2. As soon as R2 receive it, it replies an ACK answer and start a timer.

When O1 receive the ACK answer, it sends an US wave. Each time an R1 receives the US wave, it sends

a pulse to R2 which record the time and then compute the distance between R1 and O1.

Then the position is computed with trilateration.

bordeaux270993

On the first part of the project's development, i don't need the maximum range,  two meters will be enougth.

Whandall

This will be more difficult than you expect. IMHO
Ah, this is obviously some strange usage of the word 'safe' that I wasn't previously aware of. (D.Adams)

bordeaux270993

I know i have two month for make it functional. i love challenged even if it's scared me!

I take all the advice you have, especially with this topic ( how to use a US wave!), the rest i know how to manage it.

rosemerry

are you from france ?
i am an old man

bordeaux270993

Yes! Why i have such a bad english?  :o

I saw on an old topic that there are transmeitter/receiver with amplification filtration and all this staff

already embedded with the transmeitter/receiver. But i don't find any of them on the web!

Can any one provide me a name of such transmeitter receiver?


And another question: Do you think i can use a transciever like this :http://www.robot-electronics.co.uk/htm/srf04tech.htm

I mean use two of them and make the transmeitter from the first one communicate with de receiver of the second one?

Thanks!

rosemerry

Yes! Why i have such a bad english?  :o

I saw on an old topic that there are transmeitter/receiver with amplification filtration and all this staff

already embedded with the transmeitter/receiver. But i don't find any of them on the web!

Can any one provide me a name of such transmeitter receiver?


And another question: Do you think i can use a transciever like this :http://www.robot-electronics.co.uk/htm/srf04tech.htm

I mean use two of them and make the transmeitter from the first one communicate with de receiver of the second one?

Thanks!
j'aime l'idee de projet , mais je n'admire pas la methode avec laquelle tu veut le faire , qu'est ce que tu veux apprendre a travers ca ? . en+ je croie qu'on peut mieu te comprendre si tu publie dans la section francaise de forum arduino .
i am an old man

bordeaux270993

Je ne savais pas qu'il y avais une section fran├žaise ! autant pour moi.

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