MD3000 MD3000 biological signal acquisition and processing system of biological signal acquisition system is a multi-chip computer control, designed specifically for the Life Science biological signal recording and data processing system, replacing the traditional polygraph recorder, oscilloscope, XY recorder and Stimulator and other equipment, can be applied to the institutions of experimental physiology biology, pharmacology, pathophysiology, exercise physiology and psychology and other disciplines, can run under Windows2000 / XP. 300 many animals of blood pressure \ tension \ electrocardiogram do Indicators kind, Features * low noise, low drift high performance amplifiers, anti-interference ability Luo, good linearity, high accuracy * full-speed USB2.0 interface, plug and play. China high-speed, continuous data acquisition * Four-channel 12-bit A / D simultaneous sampling, analysis Lun accurate * bus architecture, universal slots can be flexibly combined into a 4-8 channel amplifier, 1-2 road stimulator * Drivers Support Windows2000 / XP / Vistas * driver adds real-time digital signal processing b * virtual channel design, channel raw data, differentiation, integration, frequency, average graphics in real-time simultaneous display * Multi-threading mechanism to run, even in high-speed continuous sampling, also can adjust various parameters, run other software * Added experimental configuration wizard for easy configuration * Resources open test, users can easily customize their own results of the experiment * handle user-customizable, personalized design * User-customizable test record process, experimental records easier * to optimize the data processing module, data processing speed, real-time processing is also not later than * Intelligent data processing module design, a result of processing more convenient * optimize the print module, network printing smoother * Support Network experiment, NetMeeting users can control the course of the experiment in the network * and Microsoft Word Excel Access seamless docking, a medical statistics * Specific experiments include: postsynaptic potentials (EPSP) acquisition and analysis module, myocardial cable properties were measured, non-invasive large rat tail arterial blood pressure measurement, determination of the effective refractory period of myocardial intracellular calcium dynamics analysis of animal tidal volume \ breathe spirometry (volumetric method), lower limb motor function analysis, strength reserve analysis, discharge stack, comprehensive hemodynamic test. Third, the tender submitted plan parameters: 1, highly integrated, with USB2.0 interface, completely get rid of built-in, easy to move, easy to research. 2, the number of recording channels: 4 channel high performance amplifiers record performance as 3, 16 bit A / D converter chip, hardware-channel maximum sampling rate 1000KHz, minimum hardware sample rate 0.01Hz 4, low noise: Equivalent Input Noise peak voltage 80dB 5, AC and DC have the same gain: Range ± 0.5V-- ± 20μV 6, with 5-order Bessel lowpass filter: from 1Hz - 30KHz 7, the time constant include: DC, 3s-- 0.001s 8, stimulate technical indicators: Amplitude: 0-100mv (40mA) step 1mv, pulse width: 0.1-60ms, program-controlled adjustment step length 0.1ms; work: single stimulus train stimulation, stimulation of primary cycle, auto interval adjust stimulation, automatically adjust stimulation amplitude, pulse width automatically adjust stimulation, stimulation of seven kinds of automatic frequency adjustment, stimulate preview: After stimulation parameters can be selected amplitude preview stimulation pulses, pulse number nine, the whole system is built-in dedicated hardware guide ECG selection circuit, a channel can be freely selected 12-lead ECG 10,4 all-channel arbitrary function monitor and record drops 11 can be automatically cascaded 2-4 devices to constitute a new 8 to 16 samples The new device channel at no additional cost to the product price increase 12 preset physiology, pharmacology, pathophysiology experimental projects, pilot projects for not less than 60 13, real-time sampling process, you can change whenever you want sampling rate 14, a single device can be set to display channel 1--31 months according to user needs (5-31 channels can be used for analysis) 15, supporting micro cycler can use, while observing the microcirculation and blood pressure, acute hemorrhagic Shock experimental study 16, a three-dimensional spectrum analysis function, can carry out the research work of 17 electric gastrointestinal, special experiments include: postsynaptic potentials (EPSP) acquisition and analysis module, myocardial cable properties were measured, non-invasive rat tail arterial blood pressure Determination, determination of the effective refractory period of myocardial intracellular calcium dynamics analysis animal tidal volume \ breathe spirometry (volumetric method), lower limb motor function analysis, strength reserve analysis, discharge stack, hemodynamic comprehensive test, the median lethal amount (LD50, dose and probability of the number of units of the linear regression method), the median lethal dose (LD50, Bliss law) median lethal dose (ED50), pD2 with pA2 value