Page 5 Medical Electronics / Biomedical Circuits

Medical Electronics / Biomedical Circuits
Medical / Biomedical: #-C D-G H-L - M-Q - R-S - T-Z
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Last Updated on: Wednesday, June 02, 2021 05:07 AM

Links to electronic circuits, electronic schematics and designs for engineers, hobbyists, students & inventors:

Rain sound effect Generator - - Agreeable, relaxing effect, helping to fall asleep; Small portable unit, 3V battery powered. . . [Flavio Dellepiane's web site]

Refrigerator Pig Schematic - - Upon opening your fridge door the photocell is exposed to light and the piggy oinks. . . . [Reverse engineered schematic by Stepan Novotill]

Ridiculously Sensitive Electric Charge Detector - - This simple circuit can detect the invisible fields of voltage which surround all electrified objects. It acts as an electronic "electroscope." Regular foil-leaf electroscopes deal with electrostatic potentials in the range of many hundreds or thousands of volts. The above device can detect one volt. Its sensitivity is ridiculously high. Since "static electricity" in our environment is actually a matter of high voltage, this device can sense those high-voltage electrically charged objects at a great distance. . [©1987 William J. Beaty]

Salt-Taster - - Detects the amount of salt contained in liquid foods; Three-level LED indicator. . . [Flavio Dellepiane's web site]

Simple lie detector - - Medical and health related electronic circuit diagrams / circuit schematics. . . [Name of Designer is not included]

Simple Lie Detector - - Here's a simple lie detector that can be built in a few minutes, but can be incredibly useful when you want to know if someone is really telling you the truth. It is not as sophisticated as the ones the professionals use, but it works. It works by measuring skin resistance, which goes down when you lie. . . . [Design by Aaron Cake]

Simple pulse oximetry for wearable monitor - - 09/14/14 EDN Design Idea Use this circuit as the “heart” of a pulse oximeter and oxygen saturation monitor.. . . [EDN Design Idea] by Martin Jagelka , Martin Daricek & Martin Donoval, 9/14/2014]

Sleeping Aid - - Based on electromagnetic-field radiation; Place it under the pillow - Built-in timer. . . [Flavio Dellepiane's web site]

Sleeping-Aid - - Based on electromagnetic-field radiation. Place it under the pillow - Built-in timer. Circuit diagram: Parts: R1, R5 1K 1/4W Resistors R2 10K 1/4W Resistor R3, R6 10M 1/4W Resistors R4, R7 2M2 1/4W Resistors R8, R9 4K7 1/4W Resistors C1, C7 47µF. . .

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. . . [Andy Collison's website]

Snore Alarm Electronic Device - - Here I describe a little electronic device that detects snoring. The principle though very simple is efficient and well protected against false triggerings. Upon detection, it generates a noisy and painfull alarm. Just what's necessary to wake up everybody except the snorer. . . . [http://www.chabin.laurent.free.fr]

Sobriety Tester - - With all the holidays upon us, understandably some of us will be drinking alcoholic beverages. This circuit can be used as a guideline how much you have had to drink and how good your reaction time is. This circuit does not tell you whether you are over the legal limit of alcohol in in your blood . . . [Randy Linscott's website]

Step-Km Counter - - Pedometer has a range of 9. 950 meters with2-digits. Slip it in pants pocket for walking and jogging. . . [by IQ Technologies Industry, unless otherwise noted online]

Stress Meter - - This project comes with all parts, PC board and a pre-programmed chip for STRESS METER. But you are encouraged to add more sub-routines to the program and learn to program the chip yourself. You will need the "Chip Programmer Model F" and the software provided below
. . . [email Colin Mitchell: talking AT tpg.com.au]

Sun tanning timer - - . . . [Flavio Dellepiane's web site]

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