Portable ground penetrating radar capable of detecting soil water content in field

Abstract

The invention discloses a portable ground penetrating radar capable of detecting soil water content in a field. The portable ground penetrating radar comprises a transmission / receiving antenna which is connected with a circulator; a transmitter and a receiver are respectively connected with the circulator; a frequency synthesizing unit is connected with the transmitter, and while a signal processing unit is connected with the receiver; a host computer is connected with the signal processing unit. The portable ground penetrating radar has the beneficial effects that the preset code type can be processed by radar wave transmission, quick sampling of target echo, follow radar algorithm processing, and host computer data processing and displaying; all target signals exceeding threshold after detecting and determining can be uploaded to the host computer; the mathematical model obtained in test can be adopted; the host computer can be used for processing and displaying the water content rate data under different soil depth; in addition, the data are transmitted through WLAN, the networking capacity can be expanded in the future so as to achieve multi-point synchronous testing.

Description

technical field [0001] The invention belongs to the technical field of detection equipment, and relates to a portable ground-penetrating radar capable of detecting soil moisture content on site. Background technique [0002] At present, the methods for on-site detection of soil moisture content are mainly resistance method, capacitance method, etc., all of which are based on the change of soil resistivity / permittivity with the change of moisture content. The signal collected by the sensor is converted to the water content parameter, and the final water content index is displayed, and multi-point real-time monitoring can be realized by establishing a regional wireless network. [0003] However, in the early stage of the above-mentioned on-site detection, multiple sensors need to be buried in the target area in advance, and the depth of the embedded sensor cannot be changed, that is, it can only detect the moisture content at a relatively fixed depth; because it is buried in t...

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Problems solved by technology

[0003] However, in the early stage of the above-mentioned on-site detection, multiple sensors need to be buried in the target area in advance, and the depth of the embedded sensor cannot be changed, that is, it can only detect the moisture content at a relatively fixed depth; because it is buried in the soil, it is not conducive to the later stage. In addition, the larger the target area, the more sensors are required, which increases the cost of instruments and labor at the same time, and reduces the detection efficiency

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