Device for dynamic measurement of the surface tension of a liquid
AssigneeSita Messtechnik GmbH
InventorLothar Schulze
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for dynamic measurement of the surface tension of a liquid by the bubble pressure process. The device is characterized by a moving measuring device with a flexible lead, conveying at least compressed air, to a sensor head which releases bubbles and can be immersed in the measuring liquid. The moving measuring device has an input keyboard for different operating modes, a display for monitoring the measuring modes and display of the measurement results, a volume flow source for generating the gas pressure, a pressure sensor for detecting the quality of gaseous bubbles, a microprocessor for measuring and evaluating the measurement results and an internal current supply for all power consumers.
Claims5
A mobile device for dynamically measuring the surface tension of a liquid using a bubble pressure method comprising:
- a hand held measuring instrument comprising:
- a micro processor for controlling and processing measurements;
- a display screen connected to said microprocessor for displaying measured results;
- an input keyboard connected to said display screen for selecting modes of measurement, calibration and cleaning of the surface tension;
- a volume stream source connected to said microprocessor for producing the bubbles;
- a pressure sensor connected to said microprocessor for detecting measurement signals;
- and
- a power supply connected to said microprocessor;
- and
- a sensor head having a nozzle for releasing bubbles into the liquid, said sensor head bring connected to said measuring instrument by a flexible feed line that feeds pressurized gas from said volume stream source to said sensor head.
Dependencies are inferred from the claim text.