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A multi-purpose photocell and touch circuit amplifier.

B F Field, B M Slotnick

Physiology & Behavior

|January 1, 1987

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A simple, inexpensive amplifier using the TLC374 quad comparator is presented. This device effectively amplifies photocell signals for behavioral studies and functions as a drinkometer.

Area of Science:

Biomedical Engineering
Neuroscience
Animal Behavior

Background:

Behavioral studies often require precise monitoring of animal activity.
Photocell-based sensors are commonly used to detect behaviors like drinking or movement.
Amplification of weak sensor signals is crucial for accurate data acquisition.

Purpose of the Study:

To describe a simple, low-cost, multi-channel amplifier for behavioral research.
To demonstrate the utility of the TLC374 quad comparator in building such an amplifier.
To present a versatile electronic unit applicable to photocell signal amplification and drinkometer functionality.

Main Methods:

Utilized the TLC374 quad comparator IC to design a multi-channel amplifier circuit.
Configured the comparator for signal amplification suitable for photocell outputs.

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Integrated the amplifier into a system for use as a drinkometer and in general behavioral monitoring.

Main Results:

Successfully developed a functional and inexpensive multi-channel amplifier.
The amplifier demonstrated effective amplification of photocell signals.
The device performed reliably as a drinkometer in preliminary tests.

Conclusions:

The TLC374 quad comparator provides a cost-effective solution for building multi-channel amplifiers for behavioral research.
This amplifier design is suitable for various applications, including photocell signal detection and drinkometer systems.
The developed unit offers a practical tool for researchers in neuroscience and animal behavior studies.