I need to measure and detect a gap between two objects. I have an MB7062 (maxbotix) ultrasonic sonar sensor. Due to the wide beam of the sensor (FOV in distance of 2m is about 30cm from the center each side, that means totally 60cm,) the sensor cannot identify the gap. Is there any way to narrow its FOV so that it detects the gap?
This is the link to datasheet: http://www.warf.com/download/6439_4951_1.pdf
Sensor pin2 output: