Self-control vibratory sediment sampler
A vibrator and sampler technology, applied in sampling devices and other directions, can solve the problems of large disturbance, instability and low efficiency, and achieve the effects of convenient installation, simple structure and controllable underwater operation.
Active Publication Date: 2015-11-25
DALIAN UNIV OF TECH
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Problems solved by technology
Solve the problems of low efficiency, instability and large disturbance in the current sediment sampler
Method used
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[0033] Step 1: Tie the cable to the lifting ring 1-3 on the sampling ship, one end of the cable is connected to the vibrator 1 through the watertight joint 1-2, the signal line at the other end is connected to the host computer 5 through the USB interface, and the power supply line is connected to the generator. Power the instrument on board and turn on the upper computer 5 to check the working conditions of the vibrator 1, the governor 1-5, the pressure sensor 1-6, and the single-chip microcomputer control module 1-8. After all checks are correct, connect the vibrator 1, The rod 2, the support frame 3, and the sampling tube 4 are assembled and fixed, and the instrument is slowly put into the water.
[0034] Step 2: During the water entry process of the instrument, the pressure sensor 1-6 continuously detects the water entry pressure signal, reads the signal through the single-chip microcomputer control module 1-8 and converts it into a corresponding depth value and transmits i...
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The invention discloses a self-control vibratory sediment sampler, and belongs to the fields of measurement and control technologies and underwater sediment collection. The sampler mainly comprises a vibrator, a connecting rod, a sampling pipe, a support frame and a control unit, wherein the vibrator provides a power source for the sampler; the support frame is used for ensuring vertical descending of the sampler; the instrument underwater penetration is detected through a pressure sensor; a single-chip microcomputer control module is used for transmitting a signal to a host for displaying; meanwhile, the startup and shutdown of the vibrator are controlled; the frequency of the vibrator can be adjusted as required on line through a speed regulator. The self-control vibratory sediment sampler has the beneficial effects of high sampling efficiency, working stability and small disturbance. The self-control vibratory sediment sampler has the characteristics of underwater operation controllability, simple structure, convenience in installation and capability of collecting original-state bedding formation sediment samples. The self-control vibratory sediment sampler is suitable for collecting sediments in the inland water areas of reservoirs, rivers, lakes and the like.
Description
technical field [0001] The invention belongs to the field of measurement and control technology and underwater sediment collection, and relates to a sampler used for underwater sediment collection, in particular to a sampler for inland water bottom sediment collection when the water depth is relatively large. Background technique [0002] Bottom sediments are an important part of water bodies in reservoirs and other water sources. Due to the cumulative effect of pollutants over the years, pollutants from river basins accumulate in sediments for a long time, posing a threat to water bodies and their environment. Affected by sedimentary characteristics and pollution sources, the composition and concentration of sediments at different depths are different. With the growth of time, the bottom sediments present a bedding structure. Therefore, it is necessary to study the characteristics of sediments in depth, and the key is to obtain undisturbed stratified sediment samples. [0...
Claims
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IPC IPC(8): G01N1/10
Inventor 许士国蒋坤高卫国崔宝卫汪天祥
Owner DALIAN UNIV OF TECH