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UltraSonic TX Amplifier

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Kevin Gallagher

New Member
I am currently developing an ultrsonic measuring tape. I am having one major problem and that it getting distance (ie the reciever picking up the transmitted pulse). At the moment with no amplification on the Transmitter ( ie o/p of 4047 BE oscillator being fed directly into transducer) and a CA304 op amp configuration on the reciever I'm getting a distance of 1.5 - 2 metres. I was hoping for aroung 10 metres. Does anyone out there have any amplifier configurations for an ultrasonic transmitter that works. Or any other ideas/recommendations that would increase distance would be welcome.

I can give e mail address if some one maybe wants to e mail me a cct diagram.

Thanks for any help
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