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Device for measuring drilling water level

A technology of water level measurement and line measurement, which is applied in the directions of measurement, earthwork drilling, wellbore/well components, etc., which can solve problems such as errors and achieve the effects of improving accuracy, simple structure, and reducing measurement errors

Inactive Publication Date: 2010-01-27
湖南省水利水电勘测设计规划研究总院有限公司
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Problems solved by technology

[0004] In view of this, the present invention provides a water level measuring device, which can provide an automatic counting technology, which solves the problem that errors are likely to occur in manual counting during the measurement process that has always existed in the prior art, and achieves a small measurement error. , which further improves the accuracy of measuring the depth of the water level

Method used

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  • Device for measuring drilling water level
  • Device for measuring drilling water level
  • Device for measuring drilling water level

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no. 1 example

[0035] Please refer to the attached figure 1 , attached figure 2 , attached image 3 And attached Figure 4 , The first embodiment of a water level measuring device provided by the present invention includes: an automatic counting system 1 , a transmission wheel 2 and a probe 3 .

[0036] One end of the probe 3 is used for measurement, and the other end is connected to a measuring line 31 .

[0037] The transmission wheel 2 includes an optical fiber sensor 21 , a wire passing runner 22 , a sensing point 23 , a runner shaft 24 and a support plate 25 .

[0038] The line passing runner 22 is sleeved on the runner shaft 24, and then the runner shaft 24 is fixed on the support plate 25, that is, the two ends of the runner shaft 24 are connected on the support plate 25; the measuring line 31 of the probe 3 is clamped on the On the thread passing runner 22, the thread passing runner 22 moves synchronously with the measuring line 31, so that the corresponding measuring line 31 pa...

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Abstract

The invention discloses a device for measuring drilling water level, which comprises an automatic counting system, a driving wheel and a probe, wherein a measuring line of the probe is clamped on the driving wheel which moves synchronously with the measuring line; and an optical fiber sensor arranged on the driving wheel outputs a sensing signal to the automatic counting system when sensing the rotary set angle of the driving wheel. When the device is used for measuring water level, the probe provided with the measuring line is put down. When the probe touches water, a circuit in the probe is conducted to generate a guard signal, and the guard signal is transmitted to the automatic counting system which calculates the depth of water level according to the number of received sensing signals. By utilizing the automatic counting, the invention controls errors, reduces measuring errors and further enhances the precision of water level measurement.

Description

technical field [0001] The invention relates to the technical field of borehole water level measuring instruments, in particular to a borehole water level measuring device. Background technique [0002] In the drilling of water conservancy and hydropower exploration, it is essential to measure the groundwater level, and the accuracy of the measurement is directly related to the accuracy of the hydrogeological data. At present, two methods are usually used to measure the groundwater level: the first is simple measurement. When the depth of the hole is not large, use the method of hanging a steel ruler or iron cylinder with a measuring rope, and rely on artificial listening to the sound of water at the hole. Measure the length of the measuring rope after the steel ruler or iron cylinder touches the water to determine the depth of the water level. The second is to use a water level meter. The basic principle is to use a probe, that is, a sensor, to touch the water. After touch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/04E21B47/047
Inventor 梁东红文武左重辉
Owner 湖南省水利水电勘测设计规划研究总院有限公司
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