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Table of Contents
Related Manuals for DPA Hydrophone 8011
Summary of Contents for DPA Hydrophone 8011
- Page 1 User’s Manual Hydrophone Type 8011...
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Page 2: Table Of Contents
User’s Manual Contents Hydrophone Type 8011 Technical Description ..... . . Page 2 Full Specifications ......Page 3 Using the Hydrophone . -
Page 3: Technical Description
User’s Manual Technical Description The cartridge The Hydrophone uses a piezoelectric crystal sensing element, which is enclosed in a capsule so that it can withstand high pressure encountered at depths of up to 50m without being damaged or suffering changes in its performance characteristics. -
Page 4: Full Specifications
User’s Manual Full Specifications 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. <8µV Max SPL: 162dB SPL peak Output impedance: <300 Ohm Polarity: Positively increasing sound pressure produces positive-going voltage at pin 2. - Page 5 User’s Manual Full Specifications Polar pattern 0 dB 10 dB 20 dB 30 dB 40 dB Directional characteristics of Hydrophone Type 8011 at 10kHz.
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Page 6: Using The Hydrophone
User’s Manual Using the Hydrophone Using the Hydrophone To ensure optimal results, certain steps must be taken to prepare the Hydrophone for use, bearing in mind any possible adverse effects of the environment or medium in which it will be immersed. Please read the important tips and precautions below. - Page 7 User’s Manual Using the Hydrophone Stereo recording in water Due to the omnidirectional pick-up pattern of the Hydrophone it is possible to record A-B stereo using two 8011 Hydrophones. The spacing between the two Hydrophones needs to be 4 times larger (approx. 1-2 meters) than when making A-B stereo recording in air.
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Page 8: Care Of The Hydrophone
7.79 cm Care of the Hydrophone The Type 8011 Hydrophone from DPA Microphones is covered by a polyurethane seal on both the sensing element and on the cable. Polyurethane is quite resistant to salt-water and does not require any additional coating. Keep the Hydrophone... -
Page 9: Service And Repair
Service & Repair Service & Repair Products from DPA Microphones are extremely stable and there should not be any significant change in the specifications with time and use. If you are not totally satisfied with the characteristics exhibited by these products, please contact the nearest DPA Microphones representative for further details of the service and repair facilities available. - Page 10 Gydevang 42-44 • 3450 Alleroed • Denmark tel: +45 48 14 28 28 Fax: +45 48 14 27 00 email: info@dpamicrophones.com www.dpamicrophones.com...
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