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1. Introduction
TDH-90 pipeline monitoring hydrophone features a cylindrical piezoelectric ceramic and supports gains of 10, 20, 30dB by adjusting the preamplifier's amplification factor. It provides a horizontal omnidirectional response within the 2Hz~84kHz frequency band. According to the different thread specifications selected for the hydrophone, it is divided into HTD-90 type I (M36x2, 25mm thread) and HTD-90 type II (M36x2, 14mm thread). The product can operate normally after undergoing 7*24h pressure testing at over 10MPa (i.e., supporting a maximum working depth of 1000 meters).contactus
2. Application scenarios
(1) Passive acoustic monitoring;
(2) Target radiated noise measurement;
(3) Pipeline noise measurement, etc.
3. Technical Specifications
N0. | Parameter | Performance |
1. | Sensitivity | -17 0 dB V/μPa @1kHz |
2. | Operating frequency band | 2 Hz ~ 84 kHz |
3. | Pre-amplifier (dB) | 10, 20, 30 |
4. | Output type | Differential input or single-ended output |
5. | Max. working depth | 1000 meters |
6. | Dimensions | Φ28 x 100mm |
7. | Thread specifications | Type I M36x2 25mm long thread Type II M36x2 14mm long thread |
8. | Weight | 450g |
9. | Material | 316 stainless steel, acoustic materials |
10. | Power supply | 5~24V |
11. | Drive cable length | 1000 meters (differential) |
12. | Operating temperature | -10°C - +60°C |
Sensitivity

Azimuth angle
