Working principle of ultrasonic sound intensity measuring instrument
Ultrasonic sound intensity measuring instrument is a kind of equipment that can measure the sound intensity in the process of sound wave propagation. By sending and receiving ultrasonic signals to measure sound it uses non-contact ultrasonic detection technology, the intensity of the wave.
The working principle of ultrasonic sound intensity measuring instrument:
The equipment is mainly composed of signal generator, sensor, receiver, amplifier, filter and data processing unit. When working, the signal generator will generate a certain frequency and power of the superwave signal, and then through the sensor to transmit the signal, when the signal meets the object, part of the signal will be reflected back to the sensor. The receiver picks up the reflected signal and converts it into an electrical signal. The signal amplifier then amplifies the electrical signal and transmits it to a filter for filtering, which can filter out clutter and dry signals, and then transmits the signal to a data processing unit for processing and display.
When processing data, the ultrasonic sound intensity measuring instrument can calculate the energy loss when the sound wave passes through the object by calculating the difference between the reflected signal and the transmitted signal, so as to calculate the sound intensity. At the same time, the device can also measure the speed of sound propagation, in order to calculate the sound wave intensity value more accurately.
Because of its real-time, high precision, non-contact and other advantages, it is widely used in industrial production, acoustic research, medical diagnosis and other fields. For example, in industrial production, it can be used to detect the strength of materials, find defects and wrinkles and other problems. In medical diagnosis, it can be used to detect lesions and disease conditions inside the human body, compared with women to measure the function and disease status of the heart and blood vessels.
In general, the ultrasonic sound intensity measuring instrument uses the principle of ultrasonic wave to detect the sound wave intensity, and has a wide range of application prospects. It will play an increasingly important role in the fields of industry, production and medicine in the future.