The double-threshold method has been widely used in ultrasonic flow measurement to
determine time-of-flight (TOF) due to its low cost and ease of implementation. Performance …

Double-threshold method is a typical and simple time-of-flight (TOF) measurement method
for time-difference-based ultrasonic flowmeter. Some improvements have been proposed to …

As a typical method for calculating time‐of‐flight (TOF), the double‐threshold method is
widely applied in many time‐difference‐based ultrasonic gas flowmeters. However, the …

Determination of time-of-flight (TOF) is crucially important in liquid ultrasonic flow meters.
There are some deficiencies of previous TOF detection methods in practical applications …

Commercial time-of-flight (TOF) ultrasonic flowmeters (UFM) are rapidly expanding in the
general industry. Among the different techniques that can be applied to determine the TOF of …

Ultrasonic flowmeter has been widely used in chemical industry, metallurgy, and oil industry
due to the advantage of highly accurate, non-invasive, and no pressure loss nature …

This paper researches on the implementation of an ultrasonic time-of-flight (TOF) measuring
system by the difference of the peak time sequences (PTSs) of dual frequencies. The …

The use of ultrasonic gas flow meters has expanded in industrial and household fields
owing to their unique advantages. The transit-time method is applied to measure the gas …

The time-of-flight (TOF) of ultrasonic flow meters is usually determined by the zero-crossing
point extracted from the echo, but the zero-crossing point is not necessarily the starting point …

Accurate determination of time-of-flight (TOF) is crucially important for precise ultrasonic flow
measurement. Detection of ultrasonic signal onset (USO) is considered as an effective …