Leak detection hydrophone sensor HP-01-050S

monitoringcommunicationfor pipes

Product Overview HP-01-050S is a micro hydrophone based on a semiconductor MEMS manufacturing platform. It features a compact and lightweight structure with a wide bandwidth of 1 kHz to 50 kHz, high sensitivity of -185 ±3.0 dB re 1V/µPa, and a built-in 40 dB amplifier. The small package size improves installation convenience and supports deployment in limited spaces, including array configurations where compact dimensions are important.

Key Features

• Wide bandwidth: 1 to 50 kHz
• High sensitivity: -185 ±3.0 dB re 1V/µPa
• Built-in amplifier gain: 40 dB
• High linearity with nonlinearity below 1%
• Compact package size: Φ15 × 32 mm
• Light weight: approximately 6 g (excluding cable weight)
• Omnidirectional directivity

Stable Frequency Response The HP-01-050S offers strong frequency response consistency. Within the 1 kHz to 50 kHz bandwidth, sensitivity variation is less than ±3 dB. Sensitivity difference between units is also less than ±3 dB.

Compact MEMS Design This micro hydrophone uses MEMS technology to achieve a small form factor suitable for easier transport and installation and for dense array arrangements in limited spaces.

Temperature and Depth Performance Temperature influence on sensitivity is less than 0.1%/°C across the operating temperature range of -40 to 80°C. The hydrophone is insensitive to static water pressure, with sensitivity change less than ±1 dB from 0 to 100 m water depth.

Applications

• Pipeline leak detection
• Waterway monitoring
• Underwater communication
• Geological exploration
• Marine fishery
• Ultrasonic detection

Pin Configuration The HP-01-050S uses a 3-wire connection:

• Pin 1 (Yellow): AC signal output
• Pin 2 (Red): DC power supply
• Pin 3 (Black): Ground

Dimensions and Weight

• Package dimensions: Φ15 mm × 32 mm
• Weight: approximately 6 g (cable weight not included)

Technical Specifications

• Model: HP-01-050S
• Product type: Micro hydrophone
• Bandwidth: 1 to 50 kHz
• Dynamic range: ±1000 Pa
• Sound sensitivity: -185 ±3.0 dB re 1V/µPa
• Temperature influence on sensitivity: <0.1%/°C
• Nonlinearity: <1%
• Noise resolution at 1 kHz: ~60 dB re µPa/√Hz
• Built-in amplifier gain: 40 dB
• Output amplitude: 1 Vppk
• Current: 4 mA
• Insulation resistance: >50 GΩ
• Directivity: Omnidirectional
• Supply voltage range: 5V to 15V
• Absolute maximum supply voltage: 16V
• Measurement condition: 25°C, 8V supply
• Operating temperature range: -40 to 80°C
• Storage temperature: -50 to 80°C
• Operating depth: <100 m
• Survival depth: 400 m
• Pin configuration: 3-wire (Pin1 Yellow AC output, Pin2 Red V+, Pin3 Black GND)
• Package dimensions: Φ15 mm × 32 mm
• Weight: approximately 6 g (excluding cable)