Actually, Ultrasonic Transducers and Sensors are basically a set of acoustic sensors that are made up of a transmitter, a receiver, and a trans-receiver device. The transmitters are responsible for the conversion of signals mostly sound and electrical into ultrasound signals and sending them to the receiver. Here these signals are converted back to electrical signals.
These devices work in more or less the same manner as a sonar or a radar when it comes to sensing and interpretation of movements and sound waves. Ultrasound sensors and transducers are commonly used to measure speed, strength and direction of the wind, detection of speed and movement from secured and restricted areas, channel and fluid tank levels as well as measurement of tide characteristics.
They are also used in industrial application where they are used to monitor and control devices using sound ranges that are far beyond normal human being hearing such as twenty thousand Hz or higher. They are also used to monitor and calculate the distance of a certain target object. This system works through vibrations.
When the ceramic transducer vibrates, these vibrations are compressed, expanded and transmitted towards the target object by the transducer. The sensor then measures the distance covered by the sound to reach the object and the time taken by the echo sound to return. Through this, the distance and direction of the target object are identified.
Due to the fact that these devices use sound instead of light to detect objects, they are ideal for areas where photoelectric sensors cannot be used. They are also ideal for a section of objects in areas that have high glare characteristics. However, when you are looking for an Ultrasound Transducer or Sensor, there are some aspects you need to consider. These aspects include.
1. Sensing Distance.
It is obvious that these devices are bought in order to offer detection services. You will need to understand the maximum distance that your ultrasonic transducer and sensor can detect. In order to understand a quality sensor, you need to make sure the device has the ability to detect objects a certain distance beyond the maximum distance.
2. Blanking distance.
Blanking distance basically means the area from where the device is located and the first few feet or inches that the device cannot be able to detect an object. Therefore, you need to understand that if the device detects objects from very far distances, the same way its blanking distance is long. Due to this fact, you need to make sure that the device is able to cover both short and long range distances effectively.