2results about How to "Wide temperature adaptability" patented technology

This utility model discloses a piezoelectric acoustic sensor, including a transducer, a preamplifier, and an adapter structure. Sound waves act on the outer shell at the bottom of the transducer, and the shell transmits pressure to the piezoelectric element, causing polarization within the element. Through a series of processes, the sound signal is converted into an electrical signal. The piezoelectric acoustic sensor has a closed structure, requiring no sound-permeable hole, allowing it to adapt to harsh environments. It can also measure relatively large sound pressure levels and has a wide temperature range, operating from -40℃ to 120℃.

The utility model provides a high-temperature-resistant piezoelectric acoustic transducer, which comprises a transducer, a preamplifier and a high-temperature-resistant cable, sound waves act on a shell at the bottom of the transducer, the shell transmits pressure to a piezoelectric patch, an electric polarization phenomenon is generated in the piezoelectric patch, and sound signals are converted into electric signals through a series of processing. The piezoelectric acoustic sensor provided by the utility model is of a closed structure, does not need a sound transmission hole, can adapt to a severe environment, can measure relatively large sound pressure, has a relatively wide temperature range, and can be used at the temperature of-40 DEG C to 350 DEG C.