How to measure surface tension with the Goniometer
To measure surface tension with the Goniometer, use the following steps:
- To set up the system, begin by attaching the tilt stage to the base. Make sure it is securely fastened.
- Next, take the time to adjust the screws on the stage to ensure it is perfectly level, which is important for accurate measurements.
- Following this, attach the clamping mechanism to the tower securely. This mechanism will be used to hold the syringe.
- Now, plug in both the USB and power cables, and then switch on the system to power it up.
- Place the calibration sphere on the stage, making sure it's centered and stable for calibration purposes.
- Start the camera to begin capturing images or video.
- Proceed to focus the camera onto the calibration sphere to obtain a clear image.
- After focusing, lock the lens in place to maintain the desired focus setting.
- In the software interface, select 'Image' and provide a suitable file name for the data.
- Once the settings are in place, click the 'Record' button to start capturing data.
- After capturing the required data, be sure to stop the camera.
- In the software, navigate to the 'Analyse' tab to access the analysis tools.
- Open the calibration image to use as a reference for your measurements.
- Using the software's tools, position the region of interest (ROI) around the calibration sphere.
- Click 'Calibrate' to complete the calibration process successfully.
- Moving on to the next task, attach the filled syringe to the clamping mechanism securely.
- Restart the camera for the next set of measurements.
- In the software, select the 'Video' mode for recording a video of the syringe experiment.
- Choose a file name for the video recording in the software settings.
- Click the 'Record' button to start recording the syringe experiment.
- Gradually push the liquid out of the syringe, maintaining a steady pace.
- Continue pushing the liquid until a droplet eventually forms and falls from the needle tip.
- When the experiment is complete, stop the camera to end the recording.
- Return to the 'Analyse' tab in the software interface to access analysis tools.
- Open the video file you just recorded for further analysis.
- From the available measurements, select the 'Pendant Drop' measurement.
- Specify the solvent density in the software to assist with calculations.
- Navigate to the desired frame in the video for analysis.
- Adjust the region of interest (ROI) to surround the droplet accurately.
- Finally, click 'Analyse' in the software to process the data and obtain your results.
Contact Angle Goniometer
- High-Res Video
- Simple to Use
Available From £2000