Onda Corporation
Onda - Model HFO-690 -Optical Fiber Hydrophone System
FromOnda Corporation
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.
- Support high acoustic pressures up to 500 MPa
- Bandwidth limiting filters to reduce Noise Equivalent Pressure
- Easy to use touch screen user interface
- Simultaneous temperature measurement
- Simple self-calibration routine
- Visible light source to simplify alignment
- Simple cleaving procedure to repair probes within minutes
- Optically filtered to reject stray environmental light
HFO-690
- Frequency Response: 3 kHz to 150 MHz
- Nominal Acoustic Sensitivity: 6 mV / MPa
- Noise Equivalent Pressure:
- 0.25 MPa at 2 MHz BW
- 0.3 Mpa at 10 MHz BW
- 0.5 MPa at 100 MHz BW
- Laser Source: 690 nm
- Laser Classification: Class 3B
- Spatial Resolution: 100 μm
- Temperature Sensitivity: 10 mV / °C
- Operating Water Temperature Range: 5 to 95 °C
- Length of Optical Fiber: 2 m
All specifications subject to change.
- HFO-690 Fiber Optic Controller
- Optical Probes: set of five, 2 meters long
- Optical Probe Holder
- Bandwidth Limiting Filters: 2 and 10 MHz
- Calibration kit
- Fiber preparation kit
- Deconvolution Software
- Protective Eyewear
- Optical Probes: set of five, 2 meters long
- Protective Eyewear