泥沼采样器

产品编号:
04.09

申请:

  • 土壤剖面描述和分类
  • 地下水位以上土壤采样
  • 地下水位以下土壤采样
  • 土壤环境研究
  • 沉积物采样

The stainless steel peat sampler is in fact a kind of gouge auger. The peat sampler is pushed into the soil manually. The sample containing part is a half cylinder. The peat sampler distinguishes itself from the standard gouge auger as its cone is massive. The sample containing section is sealed off by a plate (fin) that can pivot around the axle in the middle of the sampler and that is fitted with a cutting edge on one side. Having arrived at the correct sampling depth the complete sampler is given half a turn clockwise (180°). During the turning the fin remains in position which allows the half cylinder to be filled and closed again. The half circular sample cylinder is kept closed by the other side of the fin during extraction. The peat sampler is only suitable in flabby and very soft soils. To achieve maximum stability the connections between the T-handle, the extension rods and the bottom part have been executed as conic threaded connections. The standard set consists of: a T-handle with extension rods, an Edelman auger, a peat sampler, a push-/pull handle, tools, maintenance kit and a fibre glass utility probe. The whole is kept in a sturdy aluminum transport case.

Advantages

The advantages of a peat sampler by comparison to other gouge augers are:

  • At almost any desired depth a semi disturbed sample can be extracted with a length of 50 cm.
  • It is possible to take samples below the groundwater level or from below the surface water.
  • Because the fin closes the half cylinder properly it is possible to take samples from very soft and flabby soils.

The limitations are:

  • Substantial penetration resistance because of the massive cone.
  • In very fibrous soils the sharp edge of the sampling part may not cut the fibers, causing the fin to stay partly open and resulting in sample loss or contamination with upper layers (specially in case of very soft soil materials).

Applications

The peat sampler enables to take undisturbed samples from soft soils at predetermined depths on behalf of:

  • Environmental studies.
  • Visual interpretation of a soil layer.
  • Soft sediment sampling.
  • Palaeontological research.