Tag: <span>kymograph</span>

November 27, 2025

Vintage Analog Polygraph Instruments: Manufacturers & Models

Explore the iconic analog polygraph instruments from Stoelting, Lafayette, Associated Research, and more that built the foundation for modern lie detection.

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July 9, 2025

Four Components of a Polygraph: Complete Technology Guide

Discover the four core components of a polygraph: pneumograph, cardiosphygmograph, galvanograph, and kymograph. Learn how each works and their role in lie detection.

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