New Reply 
circuit diagram of electronics stethoscope using lm358
Guest
Guest
 
#1
15-07-2015, 07:51 PM

I need circuit diagram of electronics stethoscope because of my project.....i have an challenge to build a instrument that caunt our heart beat and send to digital display plz give me circuit diagram
Reply
jaseela123d Offline
SP Deserved Member
**********
Posts: 14,118
Threads: 61
Joined: Oct 2014
#2
31-03-2017, 10:40 AM

An electronic stethoscope is used to listen to the heartbeat and is usually used a listening tube or a stethoscope. This electronic stethoscope circuit uses a piezo sounder from a musical greetings card or melody generator, like microphone. This transducer has an output signal of the order of 100 mV and its low frequency response is governed by the input impedance of the amplifier. For this reason we have chosen to use a transistor amplifier emitter followers. This has a high input impedance and ensures that the transducer will have a very low frequency response. At the output you only have to connect a set of low impedance headphones to hear your heartbeat. The replacement of the follower emitter with a Darlington transistor configuration will further increase the input impedance of the amplifier.


Circuit diagram of electronic stethoscope


[Image: electronic-stethoscope.jpg]
Find
Reply
New Reply 

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: lm358 rfid schematic, heartbeat sensor using lm358, blusteth wireless stethoscope using blue toothr drive, mic lm358**ics for computer sciencesky x technology ppt, working of automatic street light of ic lm358, electronic stethoscope seminar topic, preamp lm358,

[-]
Quick Reply
Message
Type your reply to this message here.
Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
Video frequency counter using ic 74c926 diagram working 1 4,273 02-01-2019, 09:35 PM
Last Post:
  block diagram of low cost automatic gate light with musical bell 1 7,270 06-10-2018, 05:46 AM
Last Post: Guest
  circuit diagram of smoke detector using at89s52 2 13,798 29-06-2018, 01:05 PM
Last Post: Guest
  dlw varanasi summer training report for electrical electronics branch 4 15,765 23-06-2018, 12:15 PM
Last Post: Guest
  circuit diagram dc motor speed and direction control over gsm mobile modem pdf 2 15,073 19-03-2018, 10:57 AM
Last Post: Guest
  ciruit diagram of alcohol detector 1 1,297 20-02-2018, 01:00 PM
Last Post: [email protected]
  transparent electronics seminars report 4 21,488 15-02-2018, 11:28 AM
Last Post: Guest
  water level indicator circuit using 8085 microprocessor ppt 3 13,685 12-02-2018, 04:33 PM
Last Post: dhanabhagya
  edge avoider robot using atmega8 circuit 3 12,430 20-01-2018, 10:34 AM
Last Post: dhanabhagya
Smile physics investigatory projects for class 12 cbse to set up a common base transistor circuit and to study its input and o 3 25,140 20-12-2017, 09:44 AM
Last Post: jaseela123d

Forum Jump:

Contact Us | Student Seminar Report & Project Report With Presentation (PPT,PDF,DOC,ZIP) | Return to Top | Lite (Archive) Mode | RSS Syndication