Improving the technology of sensors for non-invasive (non-contact) ultrasonic method of measuring the liquid level in closed tanks

The article describes the technological aspects of increasing the stability of the primary characteristics of ultrasonic transducers.
Materials and methods
Laboratory experiments and commercial tests.
Results
The results of experimental studies on working out the design process of the primary transmitters of direct contact type of non-invasive device for monitoring levels in closed containers.
Сonclusions
1. Optimal design elements converters and options that allow you to provide an acceptable level of overall process variation of the transfer characteristics of the converter over the entire operating temperature range. 2. The use of Polyethylene terephthalate film for electrical insulation improves manufacturability primary converter and improves the quality of the assembly, which provides a significant reduction in production costs.