High-frequency radar detection circuit for three-dimensional geological exploration and detection method thereof

Abstract

The invention discloses a high-frequency radar detection circuit for three-dimensional geological exploration and a detection method thereof. The invention comprises an adjustable voltage stabilizingmodule, a power supply storage control module, a signal source module, a high-frequency ultrasonic transmitting module, an ultrasonic receiving module, a radar receiving control module and a signal processing module; the adjustable voltage stabilizing module changes an output voltage value by utilizing the resistance value of a variable resistor RV1, and then the voltage required by storage is met; the power supply storage control module stores the obtained power supply; the signal source module generates a signal instruction by acquiring a conduction voltage; the high-frequency ultrasonic transmitting module generates high-frequency ultrasonic waves through a signal instruction; the radar receiving control module adjusts and controls the received wave band signals; the signal processing module repairs the obtained detection wave band and suppresses interference of electromagnetic waves through an inductor L1; according to the invention, accurate detection of complex geology and processing of interference frequency bands are realized.

Description

technical field [0001] The invention relates to the technical field of radar detection, in particular to a high-frequency radar detection circuit for three-dimensional geological exploration and a detection method thereof. Background technique [0002] With the continuous deepening of the development and construction of underground space in our country, geological radar detection has developed rapidly as a non-destructive detection technology; And other advantages, has been widely used in various engineering fields, has a good application prospect. [0003] According to engineering practice experience, it is relatively easy to obtain on-site records reflecting underground cavities and pipeline cavities by using ground radar, but it is still difficult to obtain the volume information of the detection target; The detection of these defects is limited to qualitative explanations, and the specific severity of the disease cannot be estimated quantitatively. Therefore, it is diff...

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Problems solved by technology

[0003] According to engineering practice experience, it is relatively easy to obtain on-site records reflecting underground cavities and pipeline cavities by using ground radar, but it is still difficult to obtain the volume information of the detection target; The detection of these defects is limited to qualitative explanations, and the specific severity of the disease cannot be estimated quantitatively. Therefore, it is difficult to accurately and in-depth assess and monitor the quality of the underground, and it is difficult to make a decision on the scope and amount of reinforcement of the defects. Therefore, it is of great significance to establish a mathematical structure calculation model based on ground radar detection to obtain the equivalent volume of the measured target.

[0004] The traditional radar detection circuit has a narrow detection range and thus limits the survey of complex terrains. It is impossible to survey geological data in a large area and obtain geological information accurately. Since geological surveys are based on transmitting and receiving ultrasonic waves, the generation, conversion, and reception of ultrasonic waves are raised. Higher requirements, the stability of the output voltage cannot be guaranteed when providing continuous power to the power module, resulting in fluctuations in the output voltage, which in turn affects the emission of the radar band; when conducting complex geological surveys, it will be interfered by the electromagnetic field, making the radar The detection circuit is interfered when receiving the echo and cannot accurately obtain the survey information

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