Brief introduction:
SD - 4 ga physiological and pharmacological experimental multi-purpose instrument is a kind of multi-purpose comprehensive experimental instrument, it is composed of digital integrated circuits for successive oscillation frequency divider, produce a variety of standard frequency and time interval, can be used as a rectangular wave stimulator, stimulation of the output waveform at the forefront of steep, flat top is ideal rectangular wave, wave width and continuous adjustable voltage amplitude, and is equipped with a single, double, such as timing, continuous output mode and delay circuit and the synchronous output, multi-purpose instrument set decimal counting circuit, using three digital tube display digital directly, can be used to plan the time counting, droplet drips and animal activity, and can meet the electromagnetic standard and recorder to record. Multi-purpose instrument equipped with communication control, anger electroconvulsive etc experiment also have external electric heater temperature control, etc. Technical indicators:
Frequency range (A) : press 2 n, A total of 10 A, namely 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024 (Hz)
Time interval (B) : press 2 n, a total of 10 a, i.e., 0.125, 0.25, 0.5, 1, 2, 4, 8, 16, 32, 64, 64 (S)
Continuous stimulation output: 1, the output mode: points A and B continuously, continuous double, timing, and A single 5 kinds.
2, the output voltage amplitude (stimulus intensity) : 0 ~ 2 v, 0, 0 ~ 100 v 3 ~ 12 v, are continuously adjustable.
3, output the rectangular wave width: 0.1 ~ 20 ms, ms continuously adjustable.
4, stimulate the output short circuit protection, can withstand the long time of short circuit. After short circuit to eliminate, instrument immediately resume normal output, no need to restart.
Delay: there is no "delay" between stimulation output and synchronization output adjustment, for using oscilloscope to observe the waveform
Time, delay for 2 ~ 500 ms ms can be adjustable, in continuous double, delay and the regulation of interval between two pulses. And the delay do the adjustment of the ac output duration.
Output interface: after panel for oscilloscope used "synchronous output" and "stimulus monitoring" socket.
Rear panel with ac voltage output, 0 ~ 150 v adjustable, for anger, electricity surprised Jue experiment.
Power supply: ac 220 v + 10%, 50 Hz plus or minus 2 Hz.
Power consumption, less than 10 w
Size: 185 * 230 * 100 mm
Weight: less than 2 dg
SD - 4 ga physiological and pharmacological experimental multi-purpose instrument is a kind of multi-purpose comprehensive experimental instrument, it is composed of digital integrated circuits for successive oscillation frequency divider, produce a variety of standard frequency and time interval, can be used as a rectangular wave stimulator,
