SYSTEM FOR INSPECTING UREA QUALITY AND METHOD FOR THE SAME

摘要

A system for inspecting urea quality includes a lower ultrasonic sensor, which is in contact with a urea liquid and installed at a bottom portion of a urea tank inside the urea tank, outputting an ultrasonic wave toward a top portion and receiving the ultrasonic wave reflected on a urea liquid surface; an upper ultrasonic sensor, which is in contact with the air and installed at the top portion of the urea tank inside the urea tank, outputting the ultrasonic wave toward the bottom portion and receiving the ultrasonic wave reflected on the liquid surface of the urea; and a controller, which is electrically connected with the upper ultrasonic sensor and the lower ultrasonic sensor, configured to calculate distances from each ultrasonic sensor to the urea liquid surface by the ultrasonic wave, and configured to determine whether the urea quality is abnormal from the calculated distances.

主权项

1. A system for inspecting urea quality comprising:
a lower ultrasonic sensor, which is in contact with a urea liquid and installed at a bottom portion of a urea tank inside the urea tank, outputting an ultrasonic wave toward a top portion of the urea tank and receiving the ultrasonic wave reflected on a urea liquid surface; an upper ultrasonic sensor, which is in contact with the air and installed at the top portion of the urea tank, outputting the ultrasonic wave toward the bottom portion of the urea tank and receiving the ultrasonic wave reflected on the urea liquid surface; and a controller, which is electrically connected with the upper ultrasonic sensor and the lower ultrasonic sensor, configured to calculate distances from each ultrasonic sensor to the urea liquid surface by the ultrasonic wave, which is outputted from both ultrasonic sensors and reflected on the liquid surface of the urea, and configured to determine whether the urea quality is abnormal using the calculated distances.