Instruction manual

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Low Pass Filter Decreases all signals above a certain frequency and passes frequencies below

that frequency.

Negative Feedback To allow a portion of the output signal to be brought back and cancel part of the

input.

Noise A random, persistent disturbance of a signal.

Open Loop Gain The maximum gain available without feedback.

Oscillator A device used to vary between alternate extremes (varies from high to low).

Peak The top of a wave or mountain.

Polarity The division of two opposites.

Power Electrical energy; strength, force, or might.

Pyroelectric Effect When certain metals change temperature, they produce energy.

RC Network An assembly of resistors and capacitors.

Reference Voltage Level of electronic element used for providing resistance in a circuit.

Resistor An electric element used for providing resistance in a circuit.

Response Curve The shape of an output produced by a circuit.

Solder An alloy (mixture) of tin and lead used in the melted state to join or repair metal

parts.

Transistor A three-terminal semiconductor device used for amplification, switching, and

detection.

Valve

A mechanical device that regulates the flow of gases, liquids, or loose materials by

blocking and uncovering openings.

Voltage An electromotive force.

Wavelength The distance in a periodic wave between 2 points of corresponding phases.\

For further information on infrared light and waves . . .

The Invisible World of the Infrared

By Jack R. White

124 p.; ill.

Waves and Vibrations

By Brian Knapp

48 p.; ill.