Device and method for measuring hydrodynamic influence of water level fluctuation on benthonic animal habitat in river-communicated lake
A technology for benthic animals and water level fluctuations, which is applied to measuring devices, measuring the depth of open water sources, surveying, mapping and navigation, etc. It can solve problems such as unrepresentative data, changing microhabitats of benthic animals, and habitat changes
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Embodiment 1
[0037] see Figure 1-6 , a device for measuring the hydrodynamic impact of water level fluctuations on the habitat of benthic animals in Tongjiang lakes, it includes a hull 1, a power device for controlling the movement of the entire hull is installed on the hull 1, and one side of the top of the hull 1 A water depth measuring device for measuring water depth is installed; a control room 20 is installed in the middle part of the hull 1, and a data acquisition and processing module 21 for collecting and feeding back data is arranged inside the control room 20; the top of the hull 1 and A flow measuring device is installed on the other side of the water depth measuring device. By adopting the device of the present invention, it can be used to measure the water depth and flow rate of lakes through rivers, and further measure the hydrodynamic environment. Its flow measurement device uses optical principles to measure the flow velocity at the bottom of the lake in real time; the w...
Embodiment 2
[0052] see Figure 5 , in this example, for the flow measuring device, the measurement is carried out by the optical principle. Weld a 5cm thick stainless steel plate at the junction with the ship deck, set a T-shaped base on the steel plate, the center of the base is recessed 2cm, and then install the column, and the column and the base are connected by bolts. A longitudinal telescopic sleeve is installed between the columns to facilitate the expansion and contraction of the lifting rod. Wherein the lifting rods are symmetrically distributed. A horizontal telescopic plate is installed on the upper end of the lifting rod, and the connection between the telescopic plate and the telescopic plate is connected by a telescopic joint. By adjusting the horizontal telescopic plate, the distance between the flow rate measuring instrument and the hull when entering the lake bottom is adjusted to ensure no interference. A concave rail is arranged at the transverse telescopic plate at t...
Embodiment 3
[0060] The method for measuring the hydrodynamic impact of water level fluctuations on the habitats of benthic animals in Tongjiang lakes includes the following steps:
[0061] Step1: Drive the boat to the lake, and the solar panel supplies power to the motor, monitoring device, and data acquisition and processing module;
[0062] Step2: The staff closes the switch of the motor and the control room, the controller controls the motor and the wire wheel to work together, puts the weight into the bottom of the water, and measures the water depth;
[0063] Step3: Start the flow measurement device, put the optical measurement device 33 into the bottom of the water through the grab bucket, the light source in the optical measurement device 33 will generate polarized light after passing through the polarizer, and then convert it into a sheet light source after passing through the optical irradiator to irradiate the liquid in the cross section A plurality of suspended particles, when ...
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