Medlab—U/4C501 Biologic Signal Collection systems

Newly added and main improving points
①Adopt high resistance(10E12Ω , 3pF), low nose. low drift 8i high function’s amplifier fuse to be ready, so it has such advantages as strong anti—interference, good linear degree and high measuring accuracy.
②Adopt USB 2.0 structure to transmit data, so its velocity is more high, and guarantees data’s continuous collection.

③Add 9 stage Besil low-pass wave filter newly, bi close to ideal condition
④Add 50Hz hardware wave frame circuit and datum tracing circuit newly
⑤Enlarge inputting electrical level’s scope to ±1.2v ,it’s very important to this condition that there is higher polarization voltage though the signal is very weak.
⑥Magnifying times is from 1,2,5,to 5000 so it can adapt to many kinds of signals.
⑦When outputting voltage is to 100v outputting current is to 100ma from electrical stimulator, it will separate light from electricity and be safe.

Amplifier technical index

No	Item	Parameter''s demand
1	Channel''s number,	Four—channel amplifier has the same function adjustable parameter control and part technology
2	Inputting mode.	Tow sends balance inputs differentially
3	Inputting resistance	100M
4	Gain transverter	1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000 ,10000, 20000, 50000
5	Gain accuracy	0.5% (FS) ( an hour''s preliminary heating later)
6	Gain accuracy	0.05%(FS) (an hour''s preliminary heating later)
7	Gain stability	0.1 percent of full degree
8	Linear degree	<1%
9	Distortion factor	DC—30KHZC+0.5db—3db
10	Nose	<3 MVRMS( Inputting short circuit, at maximum gain 30k wide band, it will convert to in putting end) <2uvRMS(Inputting short circuit, at maximum gain 30k wide band, it will convert to outputting end )
11	Common mode''s restrain	>100db
12	Time drift	<3MV/H (Inputting short circuit, at maximum gain, it will convert to inputting end)
13	Temperature drift	<3mv/h(Inputting short circuit, at maximum gain, it will convert to outputting end )
14	Upper limit frequency	When voltage is DC—30kHz, its transverter is 10, you also can input upper limit frequency freely
15	Wave filter character	9-stage Besil low-pass wave filter
16	Time constant	DC 5s,2s,1s,0.2s,0.002s, 0.001s, 0.005s, adds up to 9 transverters altogether, you can switch freely
17	50 Hz wave frame	Have but attenuate 32 db
18	Datum tracing	Have and overcome datum drift
19	Monitor function	Monitor four channels freely
20	Note drop function	Four channel all can note including drops, drop velocity

Stimulator parameter

No	Item		Parameter''s demand
1	Range		0-100v''s distance 13/mv
2	Outputting current		100mm
3	Wave width		0.1-600ms, program adjustable distance is 0.1ms
4	Delay		1-250ms, program adjustable distance is 0.1ms
5	Operating mode		Alone stimulation, crossing stimulation main period stimulation, automatic intermission stimulation, automatic range adjusting stimulation automatic wave width adjusting stimulation, automatic frequency adjusting stimulation
6	Stimulation pulse value		Free
7	Stimulation series length		free
8	Stimulation series intermission		Free
Operating table
1		Backing system		Win2000/Winxp
2		Data transmission		Full velocity USB structure.

Established in 2004,headquarter in Anhui, branch in Beijing, Shanghai we are a professional manufacturer, Serving the basic medical and biological research field for animal experiment equipment development, production, sales and service as a professional technical enterprise