Specialty Devices Inc.

Hydrographic Survey Systems

Vibecore-D

Vibecore-D

The VibeCore-D can take 2” or 3” diameter core samples and the new VibeCore-4D adds the ability to take a 4” diameter core sample. The SDI VibeCore can operate at up to 120 foot water depths and takes up to a 20 foot long core tube.

“Operating water depth” – The VibeCore is effective from virtually no water depth to about 100 feet or up to 200 feet if the deep water option is selected. The vibrating head goes underwater so there is no need for longer core tube than the sediment sample needed. Other systems you may be familiar with clamp onto the side of a core tube and the coring head needs to stay above water. This is not the case for the VibeCore.

“Core sample length” – We have taken 18 foot long samples with a 20 foot core tube on the VibeCore.  We reached the point of refusal at about 18.5 ft. The VibeCore will reach refusal if it encounters large gravel, a root, rock or sediment with very low water content. Generally we find we reach refusal in man made lakes a few inches into the pre-impoundment material as the pre-impoundment material water content drops below 10 to 15% and has rocks and debris not usually transported a significant distance from the edge of a reservoir after impoundment.

“Core compression” – Another factor in core sampling is “core compression” This “core compression” term is a bit of a misnomer. Water is virtually incompressible and usually even less compressible when dealing with water saturated sediments. The core material does not compress. A more accurate description is that the material fails to enter the core tube.

Read the “Vibecore Application Note

Contact For Pricing

Additional information

Input Voltage

22-28 VDC

Normal Active Time per core sample

30 sec. to 1 minute typical

Active time per 80 AH Battery

120 minutes

Estimated Cores per battery Charge

>75

Operating Frequency Working Water Depth (ft.)

100 ft. (220 ft. optional)

Core Head Dimensions (in.)

10.25" Long x 14" Wide x 23" High

Core Tube Materials

Aluminum, Acrylic, Polycarbonate, or Stainless Steel

Core Tube Diameter Core tube wall

2”, 3” or optional 4” 0.050” (typical)

Air Weight (core head)

77 lbs.

Specifications

  • High frequency vibration acquires near undisturbed cores
  • Ideal sampler for sediment geophysical parameters, contaminants, and trace metals
  • Unique near zero “core compression” for accurate true depth of sample recovery
  • Options for up to 30 foot long core samples from up to 200 foot water depths
  • Aluminum, Polycarbonate or Acrylic, 2” or 3” and now 4” core tubes, soft liners available
  • Designed for small boat operation. Powered by two 12 volt batteries
  • Core Keepers in Stainless Steel or Aluminum available for very soft or coarse sand sediments
  • Out-performs piston and gravity corers, equal or better the performance of heavier vibracores
  • Core Sampling in the Core sampling in a Canadian Artic River Delta
  • Integral “floating” top vent and seal helps collect very soft sediment samples
  • Unique, power saving “Energy Storage” weight ring design increases effectiveness
  • Quick-change and long-life core tube mount makes core tube mounting a simple operation
  • “Float and Weight” VibeCore Guide available for deep water or higher current sites
  • Simple, safe low-voltage car battery power, no generator or compressor needed on a small boat
  • Install core catchers as needed. No Core Liner required

Videos

 
 
 
 
 
 
 

Downloads

Vibecore Application Note

Vibecore-D Brochure