Onda Corporation products

The HM Series membrane hydrophones are designed for measuring pulsed ultrasound fields. Their extremely flat sensitivity results in the best reproduction of acoustic waveforms. Version A is the traditional hydrophone configuration, and a more rugged version B prevents membrane vibration during scanning motion. Version A is recommended for high power ultrasound work, where the absorption of energy by the backing could result in damage to the hydrophone. Both types are excellent choices as in-house primary or secondary standard, and for general purpose field mapping.

The HGL hydrophone has been established as a workhorse for diagnostic level measurements, providing the best mix of frequency response, reflection profile, and aperture size. The HGL Series hydrophones were designed to meet or exceed recommendations of section 3.3.2 of the AIUM Acoustic Output Measurement Standard (May 1998). They have an exceptionally flat sensitivity in a small and sturdy package. These hydrophones are excellent in-house standards for ultrasonic acoustic intensity measurements, and for general purpose field mapping.

The HNP Series needle hydrophones are excellent sensors for laboratory use in ultrasonic field mapping, with pinpoint access and good spatial resolution. While they have lower sensitivity than the HNC series, these hydrophones have a flatter response and better directivity.

The HNC Series needle hydrophones are excellent sensors for laboratory use in ultrasonic field mapping, with pinpoint access and good spatial resolution. They exhibit higher sensitivity than the HNP series, with decreased sensitivity flatness and slightly narrower directivity.

The HNA series needle hydrophones are the result of an extensive development to combine good spatial resolution with the ability to withstand high acoustic intensities such as encountered in mapping HIFU acoustic fields. Its ruggedness also opens possibilities for use inside tissue or phantoms.

The HNR Series needle hydrophones are excellent sensors for laboratory use in high intensity ultrasonic field mapping, with pinpoint access and good spatial resolution. Due to their high sensitivity these hydrophones are commonly operated without amplification.

The HFO-690 is the latest generation optical fiber hydrophone designed to uniquely support high intensity fields for applications such as HIFU, providing both acoustic pressure and temperature measurements simultaneously. Whereas traditional piezoelectric hydrophones were susceptible to damage, the HFO can withstand acoustic pressures up to 500 MPa. Furthermore, the HFO system was designed to be easy to use. Operation with a visible wavelength makes the alignment process simple and safer to use.

The HCT hydrophone offers a reliable solution to characterize and monitor the acoustic properties of cavitation vessels, like ultrasonic cleaners. Its unique single point sensing design allows measurements with high spatial resolution to offer true 3-dimensional mapping of the cleaning tank. The rugged construction allows routine mapping of the acoustic pressure and ultimately determination of the cleaning efficiency of the tank.

The AIMS III offers the right balance between versatility and easy-to-use operations to meet the most advanced requirements in R&D characterization, regulatory testing, and production QC. The system is commonly used to characterize and validate transducer designs. Features such as the 5 axis motion, various firing/measuring orientations, and real-time plotting make it the tool of choice to meet the most stringent environments. The AIMS platform has also established itself as the premier instrument in the regulatory community. The system allows for automatic reporting compliant with standards for diagnostic equipment (AIUM-NEMA UD-2/UD-3 and IEC 60601-2- 37, 61217-1, and 62359) as well as for physiotherapy ( US 21 CFR1050.10 and IEC 60601- 2-5 and 61689).