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Hum Bug 50/60 Hz Noise Eliminator
A New Solution
Quest Scientific is proud to introduce the Hum Bug -- a new approach to Noise Control. This
is a powerful new technology for cancelling electrical interference in real-time,
avoiding all of the traditional problems associated with notch filters. The Hum
Bug constructs a replica of noise present on the input signal and continuously
subtracts this replica from the signal as it passes through the instrument. It
performs this function in the presence of biological activity even when noise
characteristics evolve
over time.
Advantages
The HumBug is not a filter. It does
not create phase delays, amplitude errors, DC shifts or waveform
distortion. Simply connect it between your preamplifier and
any analysis equipment and it will automatically eliminate
50/60 Hz noise and harmonics with frequencies up to several
kHz. Noise is eliminated without altering the signal of interest
even when frequencies within the signal overlap with noise
components. No settings or adjustments are required.
Eliminates Electrical Interference
• Simple 50/60 Hz Sine
Waves
• Mixtures of 50/60 Hz
Harmonics
• Noise Spikes from Dimmers
• Complex Noise from Flourescent
Lamps
No Waveform Distortion • No
Frequency Loss
• No DC Voltage Shift
• No Signal Attenuation
• No Phase Error
Download the
brochure (MSWord Document).
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Specifications:
Standard steel instrument box with cast aluminum base.
• Dimensions:
W-6.5” D-7.5” H-1.3” (32.2X18.1X3.1
cm).
• Weight
2.8 lb. (1.3 kg).
• Power
115-120 VAC at 60 Hz.
230-240 VAC at 50/60 Hz.
Input protection: 50 volts peak-to-peak.
Maximum input signal recognized by the adaptor: 5 volts
peak-to-peak.
Maximum noise amplitude for complete cancellation: 1 volt
peak-to-peak.
Input to output: DC to greater than 500 kHz.
Hz and harmonics cancellation: 50/60 Hz to 4 kHz.
BYPASS: halts noise cancellation by routing input directly
to output.
HOLD: suspends adaptation to evolving noise characteristics.
CLEAR: clears the noise replica.
LED indicates changing noise levels:
GREEN: decreasing amplitude of the noise
replica.
RED: increasing amplitude of the noise replica.
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