sensors:pre final year engineering mini pojects(urgent)

[somasundaram]

im a pre final year tudent of electronic engineering .Ive been asked 2 to do a mini project .im planning a project on sensors can any one help me to choose a topic.its very urgent pls help

 

[prateeksikka]

TRY OUT A MUSCLE STIMULATOR!
CIRCUIT IS AWAILABLE ON ALL MAJOR BIOMEDICAL INSTRUMENTATION SITES,ANOTHER CHOICE IS ELECTRONIC STETHOSCOPE(AWAILABLE ON THIS SITE)DO U HAVE AMPLE TIME?
PRATEEK

 

[gg4rest]

What type of sensors are you interested in? There are pressure sensors, force sensors, EMG sensors. Are you supposed to control something with these sensors or simply get readings from them?

 

[somasundaram]

actually ihave use sensors on some application basis .it has to control something any ideas ???

 

[gg4rest]

The easiest and probably cheapest examples I can think of are using velocity sensors or accelerometers to control DC motor speed. If you want to get more complicated, you could use some position sensors as well and use two motors and a couple of linkages to make a simple planar robot. Depends really on how much controls experience you have.

 

[somasundaram]

can u sugest me a site where i could get circuits & information on sensors

 

[gg4rest]

This site lets you search for various types of sensors. Most manufacturers will have datasheets for the sensor you are using and likely has circuits in their applications notes.

http://www.globalspec.com/

As for books, "Principles of Engineering Instrumentation" by Ramsay has general information on types of sensors and the basics of how they work.