A digital sensor for intelligent measurement of sediment depth in rivers and lakes
A digital sensor, intelligent measurement technology, applied in the field of measurement and sensing, can solve the problems of complicated operation, no digital sensor, low sampling measurement efficiency of rivers and lakes, etc., to achieve the effect of increasing life cost and convenient measurement
Active Publication Date: 2021-07-13
GUIZHOU BROADCASTING & TV INFORMATION NETWORK
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Problems solved by technology
[0004] At present, the sediment measurement devices on the market are usually mechanical devices, without digital sensors, and often need to manually read the indication value of the sediment sampling pipe. After each measurement, the sediment sampling pipe needs to be cleaned. The operation is complicated. Sampling of rivers and lakes is inefficient
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[0017] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0018] A kind of river and lake sediment depth intelligent measurement digital sensor of the present invention, such as figure 1 and 2 As shown, it includes detection head 1, rebound shaft 2, iron core 3, sleeve tube 4, coil 5 and signal processing module; rebound shaft 2 is fixedly connected to detection head 1, and the rear end is fixedly connected to iron core 3; iron core 3 The bearing is installed inside the sleeve tube 4 made of copper, and moves axially inside it; the coil 5 is arranged outside the sleeve tube 4; the pulse signal is passed into the coil 5 as the excitation signal, and the pulse width p and delay of the pulse signal When t should satisfy p=2(T-t), T is the cycle of the pulse signal. In this embodiment, the period of the pulse signal is set to T=20us, the pulse width is controlled to be p=30us, and the delay time is t=5us. Practice ...
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The invention provides a digital sensor for intelligent measurement of river and lake bottom mud depth. The sensor adopts the principle of inductance and is composed of a rebound shaft, LVDT iron core and precision sleeve. core connection. The rebound shaft is in contact with the bottom mud, causing the rebound shaft to cut the magnetic induction line generated by the LVDT iron core in the precision sleeve, thereby forming a corresponding change in the electrical signal. After the electrical signal is converted from analog to digital, it represents the bottom of the river and lake Mud depth; the invention is convenient, fast, and accurate to measure, and the sensor principle and material adopted can greatly increase the life cost. The intelligent measurement digital sensor for river and lake bottom mud depth of the invention can meet the measurement requirements of different perception scenarios, and is more suitable for large-scale deployment.
Description
technical field [0001] The invention belongs to the technical field of measurement and sensing, and in particular relates to a digital sensor for intelligently measuring the depth of bottom mud in rivers and lakes. Background technique [0002] At present, the improvement of black and smelly rivers in my country's cities and water environment improvement have become an important part of economic transformation and people's livelihood projects, and have extremely important practical significance for the health of people and the sustainable development of green mountains and green waters. However, the dirt, microorganisms, and particles in rivers and lakes are deposited at the bottom of rivers and lakes, forming sediment. The sediment will be released repeatedly, leading to secondary pollution of rivers and lakes, so the amount of sediment is of great significance for water environment improvement. [0003] In particular, for the preliminary investigation of dredging, it is n...
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IPC IPC(8): G01C13/00
CPCG01C13/008
Inventor 李国政徐军许峰曹安民
Owner GUIZHOU BROADCASTING & TV INFORMATION NETWORK