Abstract: Accurate fluid level assessment in sealed pipelines is crucial in waste-water treatment and petrochemical plants, among others. The traditional pulse-echo time-of-flight measurements using ...

Being able to measure ducted airflow cheaply and non-intrusively, like with this ultrasonic flow meter ... to turn into a functional sensor. [ItMightBeWorse] is using readily available HC-SR04 ...

The ultrasonic technology enables 4-in-1 combined sensor ... measurement. The system delivers remarkable performance such as a quick response, no drift, high precision, no routine calibration ...