Microparticle Sorting Device Oscillation Cancellation
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Solution Overview
Problem
Conventional microparticle sorting devices face challenges in achieving high efficiency and purity due to unwanted flow oscillations generated by pressure changes during suction and discharge operations, which hinder the selective sorting of microparticles.
Innovation Solution
The microparticle sorting device employs an actuator that performs suction and discharge operations with controlled time intervals and drive times, allowing the oscillation characteristics of these operations to cancel each other out, thereby reducing unwanted flow oscillations and enhancing sorting efficiency and purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If suction and discharge operations are performed by an actuator to enable microparticle sorting, then microparticle recovery is achieved, but unwanted flow oscillations are generated that reduce sorting efficiency and purity
Solution Approach 1:
The actuator performs suction and discharge operations in a periodic sequence, where the oscillation from the suction operation is followed by an oscillation from the discharge operation. By carefully controlling the timing and duration of each operation, the harmful flow oscillations cancel each other out, reducing overall disturbance to the sheath flow and improving sorting efficiency and purity
Solution Approach 2:
The invention optimizes the drive interval and drive time parameters of the actuator to specific values that allow oscillation cancellation. By adjusting these parameters, the system achieves a balance between maintaining sufficient flow for microparticle recovery and minimizing harmful oscillations that would reduce sorting quality
2Object-generated harmful factors
If the drive interval and drive time are controlled to cancel oscillation characteristics, then flow oscillation is suppressed, but control complexity increases
Solution Approach 1:
The system uses the actuator's own discharge operation oscillation to counteract its suction operation oscillation. This self-cancellation mechanism eliminates the need for additional external components or complex control algorithms, achieving oscillation suppression through inherent system characteristics while maintaining relatively simple control
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the selective sorting of microparticles with high efficiency and purity by suppressing unwanted flow oscillations, thus improving the overall performance of the microparticle sorting device.
Implementation Method 1
an actuator that performs a suction operation and a discharge operation by generating a pressure change in the recovery channel
Implementation Method 2
a control unit that applies a drive voltage to the actuator to control a drive interval between the suction operation and the discharge operation performed by the actuator
Data Source
AI summary
Provided is a microparticle sorting device capable of selectively sorting a microparticle of interest with high efficiency and high purity. The present technology provides a microparticle sorting device including: a main channel through which a first fluid containing microparticles flows; a recovery channel communicating with the main channel; an actuator that performs a suction operation of sucking the microparticles by generating a negative pressure in the recovery channel, and the suction operation and a discharge operation by generating a pressure change in the recovery channel; and a control unit that applies a drive voltage to the actuator to control a drive interval between the suction operation and the discharge operation performed by the actuator and/or a drive time from the suction operation to the end of the discharge operation performed by the actuator.