What are the main types of ultrasonic measuring instruments?

Ultrasonic measuring is one technology that has been used for a long time. Since sound has long been found out to travel slower than light and the movement of it is easier to detect, lots of instruments that utilize sound to measure distance, heights, thickness or to detect objects have been developed and are used in various industries. So, what are the main types of ultrasonic measuring instruments? Well, please allow me to introduce that to you in the following contents.

Here is the content list:

l What are the three most popular ultrasonic measuring instruments?

l What is the working principle of ultrasonic sonar?

l What is the working principle of the ultrasonic distance measuring instrument?

l What is the working principle of ultrasonic thickness measuring instrument?

What are the three most popular ultrasonic measuring instruments?

Ultrasonic technology is widely used in the measuring industry. The most popular types of ultrasonic measuring instruments are ultrasonic distance measuring instrument, ultrasonic sonar and ultrasonic distance measuring instrument. The places where those three instruments are used are pretty different. The ultrasonic thickness measuring instrument is a widely used nondestructive test technique for measuring the thickness of a material from one side. It is fast, reliable, and versatile, and unlike a micrometre or calliper, it requires access to only one side of the test piece. The sonar is the earliest ultrasonic measuring instrument, it is widely used in the detecting of objects under the water. Unlike these two instruments above, the ultrasonic distance measuring instrument is widely used in the open air.

What is the working principle of ultrasonic sonar?

Ultrasonic sonar is one ultrasonic measuring instrument that works by emitting sound signals or sound pulses into the water. If there is an object in the path of the sound pulse, the sound will bounce back from the object and return "echoes" to the sonar transducer. If the transducer has the ability to receive a signal, it will measure the strength of the signal. By determining the time between the emission of a sound pulse and its reception, the transducer can determine the range and direction of the object.

What is the working principle of the ultrasonic distance measuring instrument?

An ultrasonic distance measuring instrument works by utilizing ultrasonic technology: The measuring instrument itself makes short sounds. These sounds are made by a cone-shaped transmitter. The microprocessor in the instrument calculates the elapsed time of the sound burst from the cable back to the instrument. The result can be displayed in feet, inches or meters. However, before displaying the final measurement value, the air temperature must be measured first, because the speed of sound changes approximately 0.2% per degree Celsius. The temperature sensor installed on the front of the instrument can sense the actual air temperature. This information is sent to the microprocessor and incorporated into the algorithm. Then, according to the selected distance, the distance is displayed in meters or feet and inches.

What is the working principle of ultrasonic thickness measuring instrument?

Ultrasonic thickness measuring instruments work by very accurately measuring the time it takes for a sound pulse generated by a small probe called an ultrasonic transducer to pass through the test piece and reflect from the inner surface or far wall. Because sound waves are reflected from the boundary between dissimilar materials, this measurement is usually taken from one side in a "pulse/echo" mode. The ultrasonic transducer inside the ultrasonic thickness measuring instrument contains piezoelectric elements that are excited by short electrical pulses to generate ultrasonic bursts. Acoustic waves are coupled into the test material and propagate through it until they meet the back wall or another boundary. The reflection then travels back to the transducer, which converts the acoustic energy back to electrical energy. Essentially, the gauge will monitor the echo from the other side. Usually, this time interval is only a fraction of a second. Use the speed of sound in the test material to program the measuring instrument, and then you can use a simple mathematical relationship to calculate the thickness from the measuring instrument.

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