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Experimetria | ||||
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| Experimetria's EEG is a low-noise, high input impedance amplifier specifically designed for EEG measurements. The coupler consists of a pre-amplifier and an end-amplifier. The pre-amplifier substantially reduces input noise, permitting the use of optimal length cords between the electrode and the coupler. The output voltage is adjustable +/-2.5 volts. Filtering is adjustable with five high-frequency and four time-constant settings. | ||
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SPECIFICATIONS Input impedance: >200 megaohm Input offset: +/1 300 millivolts Input: 10, 25, 50, 100, 250, 50 and 1000 µV at 1 volt output Time constant, sec (Hz): 1 (0.16), 0.3 (0.53), 0.1 (1.6), 0.03 (5.3) Filter cut slope: 6 dB/octave Cut-off frequency attenuation: 3 dB, +1.5/-0.5 dB High cut-off frequency: 15, 30, 70, 150 or 200 Hz Noise (at 0.53-70 Hz): <=1.5 µV CMMR: >86 dB Output impedance: 100 ohms Power supply: +/-20 volts, 100 mA Dimensions: 40mm wide, 128.5mm high, 250mm deep Mounting: standard R-01 type 19 inch rack Weight: 0.5kg Accessories: functional cables and operating instructions |
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