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raviram87

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  1. about the frequency range though.... no specified limit... higher the range i can measure i feel the better it will be... and there is nothing about this amplitude level also...
  2. yes sir... it is an echo... i am trying to get help from as many sources as possible... i am a student from india.. and most of our teachers are not able to guide us in this project... they suggest the use of dsp processors... but i have no idea about them.... i am a second year undergrad student... just learning the basics of signal processing... so i am on the look out for circuits using components i know... moreover i do not even know about this PLL.... but after it was suggested i have begun learning about it through the net... my sole aim is to get help from as many sources as possible....
  3. The suggestion is to use a PLL IC sir??? but how do i diplay the period onn a 7 segment display??
  4. yes sir.... i am sure that i don not want to use a microcontroller... i have attached a picture of a periodic signal... will your method be applicable to such signals??? i will not be using a CRO at any stage... so i cant view the signal also... say this is my input signal... and my output should be the frequency or period of the signal mentioned on a bcd display unit.... how to do???
  5. Sir... thank you for your idea.... and once a rectangular wave is produced at the output.... how do i measure its frequency??? or say the period???
  6. Hi everyone out there... I am working on a circuit that has the ability to measure the fundamental frequency of an incoming periodic signal. I do not want to use a microcontroller. Initially i had the idea of using peak detection and comparison... The distance between two max. peaks gives the period. But what if the signal has multiple peaks in the same period??? I REQUEST EVERYONE TO SUGGEST CIRCUITS FOR THIS PROJECT... PLEASE... PLEASE
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