4.4 Stirring Unit
Stir and mix reagent and sample after adding them。
Rotating mechanism of stirring and rotating arm adopts the direct drive way of step motor output
axle, using 8 segment drive circuit of 0.9 ° motor, and the controlaccuracy can achieve 0.1125 °.
The largest angle is limited by the open angle of rotatation code disk mechanical limit. And
positioning is determined separately by the left and right light sensors.
4－16 Stirring components configuration
4－17 stirring up-down driver configuration
Curve axle and curve handle drive is adopted by stirring up-down mechanism .
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