1, the ultrasonic transmitter emits a 60-degree angle of the ultrasonic beam outward, so there should be no other obstacles between the probe and the object under test.
2, the ultrasonic module measured the measured object and the vertical distance between the probe, the probe should be measured to keep the object under test.
3, ultrasonic measurements will be affected by the environment wind speed, temperature and so on.
1, As the ultrasonic wave will be subject to the measured object is not flat, the angle of reflection, the temperature of the ambient wind speed and the impact of multiple reflections may result in increased measurement error.
2, because of the inherent characteristics of the blind spot measurement, therefore, if the close-range measurement, when the measured position changes and the received data does not change, indicating that the measurement into the blind spot.
3, the module in the measurement of distant objects, if there is no measurement data returned, it may be beyond the measurement range, or the measurement angle is wrong. You can adjust the measurement angle.