Microfluidics and Lab on Chip

嵌入式液滴速度传感器

Embedded Droplet Velocity Sensor

A fully embedded opto-electrical velocity sensing system designed for miniaturized Lab-on-PCB (LoPCB) platforms. It performs sensing, signal conditioning, and data processing on-board without external instrumentation, utilizing a photoresistor to detect droplet velocity based on droplet length. / 一种专为微型化Lab-on-PCB（LoPCB）平台设计的全嵌入式光电速度传感系统。该系统在板上执行传感、信号调理和数据处理，无需外部仪器，利用光敏电阻根据液滴长度检测液滴速度。

Knowledge type: 物理设备
First proposed or discovered
Proposer: Turkey Farm member
Creator: 农场主
Last updated: 2026-10-30 19:06:13

Sub-knowledge points

Droplet velocity measurementMonodispersity monitoringFlow regime stabilityOn-board signal conditioningLinear relationship between velocity and droplet length (R2=0.993)Power-law relationship between velocity and monodispersity (R2=0.912)

Higher-order knowledge points

Lab-on-PCB (LoPCB) platformsModel-Based Systems Engineering (MBSE) workflowWater-in-oil emulsionsNanoparticle synthesisClinical diagnostics

Main parameters and performance indicators

Maximum detectable velocity: Increases linearly with droplet lengthFlow-rate ratio (ϕ): Range from 0.5 to 2.0Continuous-phase flow rate (Qc): FixedDroplet velocity range: 3.7–7.4 mm/sGeometry: 1.4 mm flow-focusing

Open problems

No unresolved problem recorded yet

Related literature

ranked by community stars

Embedded Droplet Velocity Sensor for Lab-on-PCB Systems: A Case Study on Velocity and Monodispersity in Flow-Focusing SystemsOpen source

嵌入式液滴速度传感器

Sub-knowledge points

Higher-order knowledge points

Main parameters and performance indicators

Open problems

Related products and links