Ultrasonic Sensor System to Determine the Relative Position of an Emitter

Other Hardware Sensors
1

Hi everyone,
I’m working on a project where I need to use two ultrasonic sensors to determine the position of an emitter connected to a separate board. When the ultrasonic emitter sends out a signal, the two sensors, which are connected to the same board, will receive the signal at different times due to the distance between them. By measuring this time difference, I want to determine if the emitter is located to the right or left of the sensors.

Project Details:
• The sensors are approximately 50 cm apart.
• The emitter will be located at a maximum distance of about 5 meters from the sensors.

I would appreciate your advice on which ultrasonic sensor and emitter would be best suited for this application.

Thanks in advance!

2

The first arriving signal (responding sensor) determines that.

Simple solution are ultrasonic obstacle avoiding modules with matching items and electronics.

3

The ones found on the HC-SR04 modules should work well.

4

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