Syringe pump working principle and selection considerations
The syringe pump is composed of a stepping motor and its driver, a lead screw and a bracket. It is widely used in pharmaceutical laboratories and has won the favor of medical researchers. The following is a detailed explanation of the working principle and selection precautions of the syringe pump. I hope everyone has to help,
How the syringe pump works
When the syringe pump is working, the single-chip microcomputer system sends a control pulse to rotate the stepping motor, and the stepping motor drives the screw to turn the rotary motion into a linear motion, pushing the piston of the injection pump to inject and infuse, achieving high-precision, smooth and pulse-free liquid transmission. . The injection speed can be set by the operator through keyboard operation.
After the syringe pump is started, the CPU provides the motor drive voltage by means of D/A conversion. The motor rotation detecting circuit is a set of photoelectric coupling circuit, and a pulse signal is generated by the rotation of the motor, and the pulse signal is fed back to the CPU, and the CPU controls the motor voltage according to the feedback to obtain the set rotation speed.
Syringe pump selection considerations
When choosing a syringe pump, you need to consider which size of syringe pump to use based on the amount of fluid you need to dispense.
To select a drive, you need to consider the fluid distribution application mode; the environment and installation form; the number of channels used. This will determine whether you choose a multi-channel or single-channel drive; the flow rate and dispensing accuracy of the fluid meets your requirements.
The above is about the working principle of the syringe pump and the introduction of the precautions. I hope everyone can understand the working principle of the syringe pump and choose the precautions, which will help everyone.
