OKI Com-Echoes has released SW1050, a compact and portable underwater sound pressure meter for offshore power generation and seabed resource development.

This product combines measuring instruments such as hydrophones, high-precision amplifiers, and A/D converters into one device, and has improved operability and measurement accuracy compared to conventional products. This makes it easy to measure and monitor underwater sounds in a wide range of fields, reducing the burden on field workers and contributing to more accurate data collection and analysis.

With the development of offshore power generation and seabed resource development, the demand for underwater acoustic measurements such as underwater environmental assessment is increasing. However, when using general-purpose measuring instruments, it is necessary to prepare and connect hydrophones, high-precision amplifiers, A/D converters, band-limiting filters, etc. individually, which results in variations in data accuracy and issues such as a high risk of human error due to the need to set up each device separately.
The “SW1050” was designed to solve these problems, and by integrating functions such as a hydrophone, a high-precision amplifier, an A/D converter, and a band-limiting filter, it is compact, easy to carry, and easy to handle in the field.
The hydrophone supports a wide range of frequencies from 10Hz to 100kHz, and the underwater sound pressure meter itself uses an amplifier with a wide variable range. This allows it to support a wide range of frequencies, from high frequencies that cannot be detected by human hearing to low frequencies that are felt as vibrations, and it can measure a wide range of sound pressure levels, from loud sounds to small sounds that occur far away and have been attenuated.
The barcode display and digital display of data values ​​allow clear comparison with numerical values, making it easy to use even for field workers without specialized knowledge.