Top 10 Applications and Types of Ultrasonic Sensors

Ultrasonic sensors help in calculating the distance of a set target by utilizing ultrasonic sound waves. This process includes a transducer that helps in sending and receiving ultrasonic pulses and records the time lapses between their transmission and reception.

These sensors produce a short wavelength which further transforms into a high resolution for image processing. All these things are only possible because of the high frequencies of the ultrasonic sensors in comparison to electromagnetic sensors.

The ultrasonic sensors have widely adopted in various sectors for image processing and object detection. It is widely applied to different sectors for performing different functions. These sensors are available in many types depending on their purpose, which we will mention in this article.

Types of Ultrasonic sensors

There are a few types of Ultrasonic Sensors that we can see around us. These types of sensors are broadly used in different sectors for different assigned functions. So, here we are listing some of the common types of Ultrasonic sensors below:

Through-beam sensors

These ultrasonic sensors have a wide range and their response time is very short in comparison to others. The transmitter and receiver operated and accommodated in two distinct housings. Then, these transmitters continue emitting sound waves via air to the receiver.

Afterward, the receiver alters it through the output stage when something interrupts the sound waves. They help in identifying any object in less time.

Proximity switches

The ultrasonic proximity switched is the easiest form of identifying objects by using ultrasonic waves. The transmitter and receiver have accommodated into one housing. Ultrasound reflects back directly from the object to the receiver, in order to measure the distance.

An ultrasonic sensor that consists of teach-in function is different from the conventional types. It is because of the easy and varied operation system which has a simple push-button.

Retro-reflective sensors

These retro-reflective sensors work in accordance with a similar principle used in ultrasonic proximity switches. The sound propagation measurement helps in measuring the distance of an object from the sensor and back to the reflector.

Furthermore, all the sound reflecting, stationary position objects use as the reflector under these ultrasonic sensors. These sensors implement in irregular and inclined objects.

Applications of Ultrasonic sensors

Ultrasonic sensors are used in several industries for their utilization. There has been significant growth in the applications of ultrasonic sensors. Many industries like the food and beverage industries are using these sensors for different purposes. So, we are listing down some of the application of the ultrasonic markets below:

  • Ultrasonic sensors have utilized in the healthcare industry in ultrasonography wherein doctors do an ultrasound of pregnant women or people suffering from stomach related diseases.
  • The ultrasonic sensor has widely utilized in chemical, oil, milk, or water tanks for measuring the level of the liquid present in the tank.
  • These sensors have implemented through-beam detection for higher speed counting.
  • The sensors mostly implemented in the robotic industry for embedding them in robots and helps in robot sensing.
  • These sensors found their usage in the car parking system at the place where car entry allowed through the barrier system. The barrier should not come down when a vehicle passes through it. All this process is possible only by using ultrasonic sensors.
  • The sensors help in the bottle cutting and drink filling machines, in which the bottle is detecting at various points and follows a continuous recording by the ultrasonic sensor.
  • The sensors also implemented in transporting printed circuit boards (PCBs) industry, which designs, develops, and prints smartphones, computer motherboards, and home appliances circuit boards.
  • These sensors are implementing in the car manufacturing sector that manufactures or assembles the car automatically.
  • The ultrasonic sensor also embedded in the car washing system for identifying and washing the car automatically.


Ultrasonic sensors refer to the tools used to detect objects, measure the distance and level of target objects. These sensors transmit the ultrasonic waves and then it reflects back to the receiver. The sensors are majorly utilized in many sectors for different purposes.

There are some factors like the rising usage of these sensors in the healthcare industry, are boosting the growth of the market. However, the limited detection of these sensors restricts the growth of the market.

The Global Ultrasonic Sensors Market size is expected to reach $5.9 billion by 2026, rising at a market growth of 9.5% CAGR during the forecast period.