HumBug Noise Eliminator

FEATURES

• The Hum Bug is not a filter. Phase delays, amplitude mistakes, DC shifts, and waveform distortion are not produced by it.
• Even when these frequencies coincide with noise components, it successfully removes 50/60Hz noise and harmonics without changing the frequency characteristics of the input signal.
• Simple to use and highly trustworthy

In order to remove mains or line noise (50/60Hz) from signal readings from biological sensors and high impedance devices without causing signal degradation as is the case with notch filters, the HumBug Noise Eliminator is the right piece of biological research technology.

Do you need to eliminate noise from many channels?

You can use more than one Humbug to clear mains interference from several channels, but these are not cheap gadgets. The good news is that Digitimer has created the D400 Two and Four Channel Main Noise Eliminators for multi-channel recording applications that require affordable mains noise removal. The D400-2 and D400-4 use a method similar to the Humbug to eliminate mains noise from signals, but they do it independently for a number of channels, making it possible to use a single D400 across many rigs.

The Problem

• The substance of signals captured using biological sensors and other high impedance devices is frequently corrupted by 50 or 60 Hz noise, which lowers the standard of later data interpretation.
• Electrical interference is notably hard to eliminate without changing the original signal buried in the noise.
• Theoretically, electrical interference can be eliminated by paying close attention to the ground and using the right shielding. In reality, noise is still a common and annoying issue in many laboratories.
• It's possible for noise to arise during crucial data collecting periods and to come and go for no apparent cause. It takes a lot of time and energy to keep the noise level within reasonable limits.

The Conventional Method

• Faraday cages reduce the intensity of external noise sources, although this defense is frequently insufficient.
• To reduce 50/60 Hz noise and harmonics, notch or comb mains noise eliminator filters are occasionally employed; however, a line noise filter will cause the input waveform to be distorted if the frequency components of the input signal overlap with the filtered frequencies.

50 or 60Hz Noise Removal without Filtering: A New Approach

• The 50Hz noise eliminator or 60 Hz noise abolition from analogue signals without filtering is a potent new method created by Quest Scientific.
• The HumBug noise eliminator continually subtracts the input signal from a noise replica that is created in real time. Even if the noise's features change over time, it nevertheless serves this purpose when there is biological activity present.
• The HumBug Noise Eliminator won't affect the biological signal's 50Hz or 60Hz components, even if they exist.