Live U-tube Detection
Camera frames are processed with color thresholding and liquid-level recognition to determine left-high, right-high, missing-liquid, low-liquid, and equilibrium states.
Laboratory Automation
Determination of Equilibrium Constant
A control console for ammonium carbamate decomposition experiments, integrating live U-tube vision, vacuum and venting control, and pressure-based equilibrium recording.
Stopped
Camera
Pressure
-94.22 kPa
Limit
-90.0 kPa Set Time
30 s Elapsed
12.4 s
-90.0 kPa Set Time
30 s Elapsed
12.4 s
化学笺集 ChemView
Tianjin University
System Overview
Built for repeated physical chemistry experiments.
Pressure Acquisition
The application reads pressure data through a gauge serial port and displays it in the desktop console for continuous experiment monitoring.
Valve Control
Reservoir evacuation, system evacuation, single-shot evacuation, and single-shot venting actions are exposed as touch-friendly controls.
Equilibrium Timing
Once the U-tube reaches equilibrium, the software keeps timing and records the pressure after the configured hold duration.
Workflow
From hardware readiness to final pressure capture.
01
Connect
Configure camera, valve controller port, pressure gauge port, and liquid-detection thresholds.
02
Prepare Vacuum
Evacuate the reservoir and system through the desktop control panel, with pressure limit support.
03
Balance Levels
Machine vision tracks the U-tube liquid state while the controller adjusts valves according to level differences.
04
Record Result
After stable equilibrium timing, the software stops the run and reports the measured pressure.
Interface
Instrument panel.
The software runs as a desktop application with a large camera preview, flat touch-friendly controls, and embedded configuration panels. Operators can keep key actions on screen.
PlatformPython desktop app
UI shellFlask + WebView
VisionOpenCV U-tube detection
HardwareSerial pressure and relay control
Ready for the laboratory bench.
Learn more about the project, source code, and ChemView experimental software ecosystem.