Sound intensity measuring instrument

Sound intensity measuring instrument is a device used to measure the sound intensity during the propagation of sound waves. It adopts non-contact ultrasonic detection technology to measure the intensity of sound waves by sending and receiving ultrasonic signals.

The working principle of a sound intensity measuring instrument is that an ultrasonic signal with a certain frequency and electric quantity is generated by a signal generator, and the signal is emitted through a sensor. When the signal encounters an object, some of the signal will be reflected back to the sensor. The receiver will receive the reflected signal and convert it into an electrical signal. Then the signal amplifier will amplify the electrical signal and transmit it to the filter for filtering. The filter can filter out clutter and interference signals, and then transmit the signal to the data processing unit for processing and display. When processing data, the sound intensity measuring instrument can calculate the energy loss of sound waves passing through an object by calculating the difference between the reflected signal and the emitted signal, thereby calculating the sound intensity.

The sound intensity measuring instrument has the following advantages:

Real time performance: It can quickly and easily measure the sound field intensity anytime, anywhere, and provide intuitive sound power values.

High precision: capable of accurately measuring sound wave intensity and propagation speed, thereby providing accurate sound field information.

Non contact: Using non-contact measurement technology can avoid affecting or damaging the measured object.

Widely used: It has a wide range of applications in industrial production, acoustic research, medical diagnosis, and other fields.

For the maintenance of sound intensity measuring instruments, the following points should be noted:

Regularly check whether the power supply and various components of the equipment are working properly.

Avoid strong vibrations or impacts on the equipment to avoid affecting measurement accuracy.

During use, it is necessary to maintain the parallelism and stability between the sensor and the measured surface to avoid affecting the measurement results.

If the equipment malfunctions or has abnormal conditions, it should be stopped in a timely manner for inspection and repair.

For components that cannot withstand high temperatures, it is necessary to pay attention to temperature control during operation.

Keep the equipment clean and hygienic to avoid affecting measurement results and equipment lifespan.

Regular calibration and maintenance are carried out to ensure the measurement accuracy and service life of the equipment.

Overall, sound intensity measuring instruments are important acoustic measurement devices with broad application prospects. Attention to details is necessary in maintenance to ensure the normal operation of equipment and improve production efficiency.