17
Socket to connect the
infusion motor board
Connect the infusion motor
2.4.11 The infusion motor
a. The motor introduction: adopts a stepper motor with 42mm diameter and 48 steps, 2
phases driving.The working voltage is 18V.
b. Number and definition of the socket
Socket to connect the
infusion pump pressure
&speed detection board
Connect J8 in the infusion pump
pressure&speed detection board
2.4.12 Stepper motor speed board
a. The circuit introduction
Motor speed function: two light couplings collect the guiding and shading light signals A
and B from the optical disc connecting on the stepper motor. You can judge the speed and
rotating direction of the stepper motor according to the order of A and B and if there are
A and B.
b. The testing points:none
c. Number and definition of the socket
Socket to connect the
infusion pump pressure
&speed detection board
Connect J4 in the infusion pump
pressure&speed detection board
2.4.13 The pump tablets position testing board
a. The circuit introduction
The peristaltic pump position testing function: the light coupling collects the guiding
light signals from the optical disc connecting on the peristaltic pump and judge the position
of the peristaltic pump during the rotation.
b. The main testing points: none.
c. Number and definition of the socket
Socket to connect the
infusion pump pressure
&speed detection board
Connect J5 in the infusion pump
pressure&speed detection board
2.4.14 The pressure sensor
a. The pressure sensor introduction
The pressure sensor adopts the resistive Wheatstone bridge strain gauge pressure
sensor. When strain gauge pressure changes, the bridge will be out of balance, the
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