Im just trying to get my head round the signals / amplitudes that an ultrasonic reciever picks up based on the defects or objects in its path.
im new to this and im trying to understand...
the ultrasonic pair:
one transmits ultrasonic pulses and the other recieves them
Is this correct?
the closer the object is to the sensor the bigger the amplitude of the signal in the reciever
or
the closer an object is the closer the signals are together on a time graph
or
the size of the object/ defect decides how big the amplitude is. bigger = more ultrasonic reflecting off therefore higher amplitude and vica versa
im just confused... this diagramme I made below shows a walking robot with ultrasonic pair moving towards an object. the objects size remains the same so does the amplitude increase as the robot gets closer or does the time between each signal decrease, or both.
http://i2.tinypic.com/6jlrvbk.jpg
Sorry about the questions im just confused.
im new to this and im trying to understand...
the ultrasonic pair:
one transmits ultrasonic pulses and the other recieves them
Is this correct?
the closer the object is to the sensor the bigger the amplitude of the signal in the reciever
or
the closer an object is the closer the signals are together on a time graph
or
the size of the object/ defect decides how big the amplitude is. bigger = more ultrasonic reflecting off therefore higher amplitude and vica versa
im just confused... this diagramme I made below shows a walking robot with ultrasonic pair moving towards an object. the objects size remains the same so does the amplitude increase as the robot gets closer or does the time between each signal decrease, or both.
http://i2.tinypic.com/6jlrvbk.jpg
Sorry about the questions im just confused.