Product Details
SQ26-01 Hydrophone
SQ26-01 Hydrophone
The Sensor Technology SQ26-01 hydrophone is a reliable, low cost, rugged hydrophone which is integrated into instrumentation.
The SQ26-01 hydrophone is commonly used in towed arrays, AUVs, and autonomous recorders. This hydrophone is very popular with student AUV competition teams.
The usable response (+3/-12dB) is good to better than 50kHz. The official “Flat” frequency response (±1dB) is rated to 28kHz. See the frequency response plots and the beam pattern plots (click on any thumbnail for enlargements).
Although the SQ26-01 hydrophone is low cost, it is a professional hydrophone and is not recommended for novice users.
The SQ26-01 hydrophone has a 2000m depth rating and is, therefore, subject to export restrictions.
Description
| SQ26-01 hydrophone specifications | |
| Linear Frequency Range (±1dB) [kHz] | .001† to 28 |
| Usable Frequency Range (+3/-12dB) [kHz] | 0.001† to > 50 |
| Transducer Voltage Sensitivity @ 20°C [dB, re 1V/µPA] | -193.5 |
| Transducer Voltage Sensitivity @ 20°C [V/bar] | 20 |
| Transducer Charge Sensitivity @ 20°C [nC/bar] | 24 |
| Acceleration Sensitivity [mbar/g] | < 0.2 when properly mounted |
| Maximum Operating Depth [m] | down to 2,000 |
| Operating Temperature Range [ °C] | -30 to 60 |
| Capacitance (± 10 %) @ 20 °C [nF] | 1.4 |
| Sensitivity Variation with Temperature | less than 1dB loss from 0 to 35 °C |
| Capacitance Variation with Temperature | 0.33% increase per °C |
| Capacitance Variation with Depth | 7% loss per 1,000 m |
| Dimensions [mm] | 25.4 L x 25.4 dia. |
| Mass [grams] | 16 |
| Electrical Leads | two-wire shielded, 28AWG, 30cm (12″) long |
| Shielding | integral Faraday cage type |
| Electrical Insulation [Ω] | > 500 M |
| Water Blocked Leads | No |
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