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Medical Electronics / Biomedical Circuits   Page 3
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 Last Updated on: Friday, July 18, 2008 11:33 AM

Sensors / Dectectors -- Main Page
 
Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Rain sound effect Generator:  Agreeable, relaxing effect, helping to fall asleep Small portable unit, 3V battery powered (added 3/05)

Refrigerator Pig Schematic:  Upon opening your fridge door the photocell is exposed to light and the piggy oinks. (added 2/05)

Salt-Taster:  Detects the amount of salt contained in liquid foods (added 3/05)

Simple Lie Detector #1:  (electronic circuit added 4/05)

Simple Lie Detector (hackcanada 2):  (electronic circuit added 7/03)

Snore Alarm Electronic Device:  (electronic circuit added 7/03)

Snore Alarm:  The idea behind this snore alarm, is just to rouse the snorer, not the entire household. To wake the sleeper, vibration is used, not an audible alert. The vibration is provided by a small motor housed in a small 35mm film case, which can be placed under the sleepers mattress or pillow. This circuit has a level control and peak display indicator, a variable trigger threshold and trigger indication.  (added 10/05)

Stress meter educational project using PIC12F629 microcontroller: 

Sudden Ionospheric Disturbance (SID) Receiver:  My Sudden Ionospheric Disturbance (SID) receiver is a modified Stokes' Gyrator tuned VLF receiver based on the circuit board available from FAR circuits (see Communications Quarterly Spring 1994 pp.24-26).... (electronic design added 11/06)

Sun tanning timer:  (electronic circuit added 4/05)

The ESP SIM (Sound Impairment Monitor):  (electronic circuit added 4/05)

Vital Signs Monitor Consumes Less than 50 µA:  02/02/98 EDN-Design Ideas / (added 3/03)  

Wireless Electrocardiogram Monitor:  (diagram added 05/07)

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