Op-ampology

Basics

This is a subsection of all our experiments related to:

• Bioelectronix
• Fish-Hacking
• Plant Electrophysiology

Examples for different Op-amps

LM386

classic...

LM324

Low-Pass filter amp for slow pulse, EKG, action potentials etc

This op-amp circuit is mainly a Low-pass filter and a DC block and can be used to amplify pulse with an LED and LDR or even measuring the heartbeat with electrodes. It can be attached to the arduino.

http://www.swharden.com/blog/2013-04-14-simple-diy-ecg-pulse-oximeter-version-2/

Instrumental Amp for GSR

Example of Instrumental amplifier to measure resistance in plants or on the skin (GSR)

http://www.chris3000.com/archive/galvanic-skin-response/

http://lessnullvoid.cc/pulsum/nuevo-kit-pulsum/

Op-amp session in the (Art)Science Bangalore labs

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Links

• Olimex LOW COST OPEN SOURCE EEG DEVICE