Demonstration of 50Hz noise removal by the Digitimer D400

NEW Digitimer D400 Multi-channel Mains Noise Eliminator

Request a D400 Quote Now to Secure Your 10% Early Adopter Discount!

Currently in development, the D400 is a new standalone, mains noise eliminator designed for real-time removal of 50/60Hz mains noise interference from amplified biological and other signals prior to acquisition by digital data recording systems. The D400 is unique as a multi-channel, standalone noise eliminator, which does not have to be used in conjunction with any particular data acquisition system.

D400 Noise Eliminator Featured

Mains Noise Removal without Destructive Notch Filtering

While the method of noise removal follows the principles of other single channel devices, such as the Quest Scientific “Humbug”, the hardware and software algorithms used by the D400 have been developed wholly by Digitimer and are unique to this device.  For those unfamiliar with the concept of operation, the D400 receives amplified analogue voltage signals from an amplifier via its inputs and as these signals pass through the D400 noise eliminator, it rapidly constructs a phase-locked “mains noise template” and subtracts this from the original signal. Noise removal occurs in real-time and the noise template evolves constantly, so that any changes in the amplitude or other characteristics are corrected for. Importantly, the signal pathway through the D400 is analogue throughout i.e. the input signals are not digitised at any point, thus preserving data integrity.

Not only does the D400 remove mains noise in the 50Hz to 60Hz frequency, but it is also effective at removing associated harmonics of these frequencies. Importantly, and unlike standard mains Notch filters, this method of noise removal is not detrimental to signals of interest within the 50-60Hz frequency range.

Features of the new D400:-

• Cost-effective, Multi-channel Noise Removal
• Cancels Out 50/60Hz Mains & Harmonics
• 2 Channel & 4 Channel Versions
• Easy to Use, Portable & Standalone
• Analogue Signal Path with No Degradation

The D400 is currently being beta-tested at several laboratories around the world, but if you would like to be kept updated on availability, arrange for a demonstration/trial or request a formal quote, please do not hesitate to get in touch with us.