Hum Bug電噪音消除儀

[ 作者：佚名 | 來源：本站原創 | 點擊數：74 | 更新時間：2010-8-11 ]
Hum Bug 電噪音消除儀-ELIMINATE 50/60 Hz NOISE AND HARMONICS WITHOUT FILTERING!

AHMSIC Reasearch 2010 (Hum Bug Noise Eliminator).pdf

AHMSIC Reasearch 2010 (Hum Bug Noise Eliminator).pdf
A New Solution
Quest 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 Hum Bug is not a filter. It does not create phase delays, amplitude errors, DC shifts or waveform distortion. Simply connect it betweenyour preamplifier and any analysis equiment 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



一款非常好用的電噪音消除裝置，能很好地搭配膜片鉗等電生理記錄設備使用

Hum Bug采用能夠根據環境電噪音實時產生反相的電噪音，從而抵消環境噪音對輸入信號的干擾，整個除噪過程無需濾波。






可以消除各種電噪音：

* 簡單的50/60Hz正弦波形噪音
* 50/60Hz諧波混合噪音
* 調光器Spike噪音
* 熒光燈產生的復雜電噪音

不會對信號的波形產生任何影響：

* 沒有頻率損失
* 沒有直流電壓漂移
* 沒有信號衰減
* 沒有相位錯誤


Reference : Quest Scientific HumBug


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In the last 10 years, the list below includes a handful of papers by a few users of this unique device.



Keiko Ikeda, Tatsushi Onaka, Makoto Yamakado, Junichi Nakai, Tomo-o Ishikawa, Makoto M. Taketo, and Kiyoshi Kawakami Degeneration of the Amygdala/Piriform Cortex and Enhanced Fear/Anxiety Behaviors in Sodium Pump 2 Subunit (Atp1a2)-Deficient Mice. J. Neurosci., Jun 2003; 23: 4667 - 4676.



Oliver Behrend, Antje Brand, Christoph Kapfer, and Benedikt Grothe Auditory Response Properties in the Superior Paraolivary Nucleus of the Gerbil. J Neurophysiol, Jun 2002; 87: 2915 - 2928.



Sophia Kr?ther, Joachim Mogdans, and Horst Bleckmann Brainstem lateral line responses to sinusoidal wave stimuli in still and running water J. Exp. Biol., May 2002; 205: 1471 - 1484.



M.P. Burnham, R. Bychkov, M. Félétou, G.R. Richards, P.M. Vanhoutte, A.H. Weston, and G. Edwards Characterization of an apamin-sensitive small-conductance Ca2+-activated K+ channel in porcine coronary artery endothelium: relevance to EDHF. Br. J. Pharmacol., Mar 2002; 135: 1133 - 1143.



R. James Storer, Simon Akerman, and Peter J. Goadsby GABA receptors modulate trigeminovascular nociceptive neurotransmission in the trigeminocervical complex. Br. J. Pharmacol., Oct 2001; 134: 896 - 904.



Yukiori Goto and Patricio ODonnell Network Synchrony in the Nucleus Accumbens In Vivo. J. Neurosci., Jun 2001; 21: 4498 - 4504.



Marcello G. P. Rosa, Rowan Tweedale, and Guy N. Elston Visual Responses of Neurons in the Middle Temporal Area of New World Monkeys after Lesions of Striate Cortex. J. Neurosci., Jul 2000; 20: 5552 - 5563.



A.W. Henkel, H. Meiri, H. Horstmann, M. Lindau, and W. Almers Rhythmic opening and closing of vesicles during constitutive exo- and endocytosis in chromaffin cells. EMBO J., Jan 2000; 19: 84 - 93.



Thomas A. Macek, Hervé Schaffhauser, and P. Jeffrey Conn Protein Kinase C and A3 Adenosine Receptor Activation Inhibit Presynaptic Metabotropic Glutamate Receptor (mGluR) Function and Uncouple mGluRs from GTP-Binding Proteins. J. Neurosci., Aug 1998; 18: 6138 - 6146.