Used DPA Hydrophone 8011

DPA Hydrophone 8011

Main features and specification for DPA Hydrophone 8011:

• Cartridge type: Piezoelectric sensing element
• Principle of operation: Pressure
• Power Supply: 48 V Phantom
• Frequency range: 100Hz - 20kHz ±3dB
• Directional characteristics: Omnidirectional
• Sensitivity: Nominally 0.7mV/Pa ±2dB
• Equivalent noise level A-weighted: Typ. <8µVMax SPL: 162dB SPL peak
• Output impedance: <300 Ohm
• Polarity: Positively increasing sound pressure produces positive-going voltage at pin 2. Pin 1: Ground, Pin 2: Signal +, Pin 3: Signal return
• Operating temperature range: -10° to +50° C (+14° to 122°F)
• Dimensions: Microphone length: 150mm (5.7in); Capsule diameter: 32mm (1.2in)
• Weight: 500g (1.1lbs) (incl. cable)

The Hydrophone uses a piezoelectric crystal sensing element, which is enclosed in a capsule so that it can withstand high pressure encounteredat depths of up to 50m without being damaged or suffering changes in its performance characteristics. The sensing element gives the Hydrophone adynamic range of more than 100dB, so that even large fluctuations in the SPL emitted from a sound source, or in the distance from the sound source to the Hydrophone, will cause no distortion in the recorded audio signal.

The cable

The Hydrophone uses an integral cable with a robust and abrasion resistant polyurethane jacket. The choice of materials allows the product to be used inpermanent installations immersed in water or ice over longer periods of time without damaging the product or changing its specifications.

The preamplifier

The Type 8011 uses a built-in precision preamplifier, which remains unaffected by temperature changes. The preamplifier is powered via a standard P48 system and is equipped with a standard 3-pin XLR-connector.

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Glossary: DPA Hydrophone 8011