A unique concept pump that uses a noise cancellation system to reduce audio pollution levels was unveiled by Thompson Pump last week at the 2017 CONEXPO-CON/AGG show in Las Vegas.
The Florida-based company says its Active Noise Cancellation system (ANC) “mitigates unwanted sound from diesel-driven pumps through the addition of a secondary sound (anti-sound) that is designed specifically to cancel out the primary one”.
This is a concept familiar to anyone who has used noise-cancelling headphones – the system was invented by Bose and first applied to aviation headphones in the mid-1980s.
“When you create a secondary sound wave with the same amplitude that has an inverted phase to the original sound, the waves combine, form a new wave and effectively cancel each other out,” Thompson Pump engineering vice president Dale Conway says.
“Better still, the ANC system is completely standalone and automated – and it requires absolutely no user intervention.”
Based in Port Orange, Florida, Thompson Pump is a 47-year-old, family-owned company that manufactures and provides dewatering and construction pumps, pumping equipment and engineering expertise for dewatering, bypass, and emergency pumping applications worldwide.