Wiki source code of Peilstok/peilhengel
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7.1 | 9 | With this manual technique, the depth of the sediment can be measured. The dipstick has a foot. This is lowered vertically to the bottom of the water. Then the height of the water column above the foot is measured. |
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7.1 | 11 | A dipstick is a dipstick on a fishing rod. The difference between a stick and a fishing rod lies in the approach to the water bottom from the side (rod) or from a boat (stick). If the foot is exchanged for a point, the thickness of the 'soft' (non-consolidated) sediment or silt layer can also be determined. |
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7.1 | 16 | |(% colspan="4" style="text-align:center" %)**General information** |
| 17 | | |Name|Dipstick / sounding rod | ||
| 18 | | |Unit of measure and parameter|Height of water column in centimeters or thickness of the sludge layer | ||
| 19 | | |Nature technique|Physical | ||
| 20 | | |Place of application|in situ | ||
| 21 | | |Detection Mode|Drilling / stabbing or measurement at ground level/water bottom | ||
| 22 | | |Applicable in separate layers|new | ||
| 23 | | |Land soil/water bottom|water bottom | ||
| 24 | | |Step in the data collection chain|((( | ||
| 25 | * Measure | ||
| 26 | * Data collection and evaluation | ||
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3.1 | 27 | ))) |
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7.1 | 28 | | |Moment of availability results|Measurement results are available in the field |
| 29 | | |Technology development phase|Applied routinely | ||
| 30 | | |Method of purchasing|as service or as a device | ||
| 31 | | |General description of the implementation method|((( | ||
| 32 | The dipstick with foot is sunk down to the sludge. There is a light version that is placed with a fishing rod or a heavier version that is carefully placed from a boat or into the water. The height of the water column can then be read on the basis of a measurement on the stick. This means that the depth at which the water bed is located is known on site. | ||
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7.1 | 34 | With a sounding rod the same can be done from the side up to a maximum waterway width of 6 m. |
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3.1 | 35 | |
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7.1 | 36 | If foot is exchanged for a point, the thickness of sediment or silt layers can also be determined. |
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3.1 | 37 | ))) |
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7.1 | 38 | | |Working principle|The height of the water column can be measured by means of a graduation on the stick. A fishing rod provides a good vertical measurement from the shore. |
| 39 | | |Point / line measurement / volume measurement|Point measurement | ||
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| 41 | Technical specifications | ||
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3.1 | 42 | |
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7.1 | 43 | (including accuracy) |
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7.1 | 45 | Dipstick is made of aluminum; periodic calibration prevents measurement errors. |
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3.1 | 46 | |
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7.1 | 47 | Accuracy: ± 1 to 2 centimeters (depending on the wave action) |
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7.1 | 49 | | |Typical depth range|((( |
| 50 | Dipstick maximum 5 meters | ||
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3.1 | 51 | |
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7.1 | 52 | Leveling rod maximum 2 meters. |
| 53 | Sensitivity independent of depth | ||
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3.1 | 54 | ))) |
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7.1 | 55 | | |Time properties|A single measurement can be performed in a short time. |
| 56 | | |Measuring rate|From 1 minute per measurement | ||
| 57 | | |Presentation results|Observation is directly readable on the dipstick; several measurements form a cross section. | ||
| 58 | | |Cost|Vary very strongly per provider and conditions in the field: from € 20 to € 150 per measurement | ||
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| 60 | **User information** | ||
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7.1 | 62 | | |availabilty|large number of providers |
| 63 | | |Is technology often used?|Very organized | ||
| 64 | | |Research phase in which technology can be applied|((( | ||
| 65 | * Explore | ||
| 66 | * Design | ||
| 67 | * Check | ||
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3.1 | 68 | ))) |
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7.1 | 69 | | |Verification measurements / calibration measurements|are often used |
| 70 | | |Frequently used application in practice|Gauging in and out of smaller waterways and of sediment or sludge layer thickness | ||
| 71 | | |Suitability|Suitable for manually sounding waterways that are not too large. | ||
| 72 | | |Practical experiences in the Netherlands|It is used very regularly, mainly by water boards or consultancy firms throughout the Netherlands. Experience shows that the accuracy strongly depends on the circumstances and the sounder. Manual gauging usually gives a good idea of the thickness of the sludge layer. | ||
| 73 | | |“Dos“|Measuring level with a higher measurement density at the slopes | ||
| 74 | | |“Don'ts”|Use as little pressure as possible when probing to press the foot into the sludge layer. | ||
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3.1 | 75 | |
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7.1 | 76 | = References = |
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1.1 | 77 | |
| 78 | * [[Stowa>>url:http://linkmanager.bodemrichtlijn.nl/Connect/iryfzv]] | ||
| 79 | * [[Stowa: INTELLIGENTE PEILSTOK>>url:http://linkmanager.bodemrichtlijn.nl/Connect/kyocgw]] | ||
| 80 | * [[SIKB-protocol 2003>>url:http://linkmanager.bodemrichtlijn.nl/Connect/gdbwil]] | ||
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7.1 | 87 | = Dipstick = |
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1.1 | 88 | |
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7.1 | 89 | [[image:peilhengel.jpg||alt="image.jpg"]] |
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1.1 | 90 | |
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7.1 | 91 | |=(% scope="row" %)Image|[[Dipstick>>https://www-bodemrichtlijn-nl.translate.goog/Connect/bodemonderzoek/fts078-1?_x_tr_sl=nl&_x_tr_tl=en&_x_tr_hl=nl&_x_tr_pto=wapp]] |
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7.1 | 96 | **Contents** |
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1.1 | 97 | |
| 98 | {{toc/}} | ||
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