DEF (diesel exhaust fluid) quality sensors work mainly through two core technologies: optical sensing and ultrasonic sensing to detect urea concentration and judge fluid quality.
The core principle is to use the different optical characteristics of urea solutions with different concentrations to achieve measurement. The typical structure and working process are:
It judges the concentration by using the difference of sound propagation characteristics in different concentrations of urea solution, which is currently a common commercial solution. The core detection parameters are:
DEF (diesel exhaust fluid) quality sensors work mainly through two core technologies: optical sensing and ultrasonic sensing to detect urea concentration and judge fluid quality.
The core principle is to use the different optical characteristics of urea solutions with different concentrations to achieve measurement. The typical structure and working process are:
It judges the concentration by using the difference of sound propagation characteristics in different concentrations of urea solution, which is currently a common commercial solution. The core detection parameters are:
