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dum311
Active Contributor

Join Date: Sep 2007
Location: singapore
Posts: 22

have you.....?

09/13/2007 12:53 AM

hi guys,

any of you had ever use the SRM400 module?

i have a problem with the SRM400 module.i had gotten the desired waveforms when i probed at the desired points/pins .however,i couldnt get the exact distance even though i had tuned the VR1,VR2 and the impedance matching transformer IFT. ti seemed there was no difference.is there anyway to detect how far the module can works?which components do i need to adjust?

thank you

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tdesmit
Guru
Engineering Fields - Electrical Engineering - New Member United States - Member - New Member

Join Date: Apr 2007
Location: Wichita, Kansas USA
Posts: 653
Good Answers: 30
#1

Re: have you.....?

09/13/2007 9:34 AM

First, you need to be more specific with your questions. The chance of someone on the forum knowing what a "SRM400" is are not very good. Since the majority of the Google results were for a "Sonar Ranging Module", I'm guessing that is what you are talking about. The datasheet for the module <http://www.prowave.com.tw/pdf/SRM400.pdf> says it is good for measuring a distance of 25-150cm. If you are getting the correct waveforms, but incorrect results, I would say you might have a problem with the method you are using to compute the distance, not a problem with the module.
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dum311
Active Contributor

Join Date: Sep 2007
Location: singapore
Posts: 22
#2
In reply to #1

Re: have you.....?

09/14/2007 4:07 AM

sorry about it.yes i am refering to <http://www.prowave.com.tw/pdf/SRM400.pdf>.

thank you

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