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Digital three-component wave speed probe

A three-component, digital technology, applied in the direction of seismic signal transmission, seismic signal receiver, etc., can solve the problems of increasing system cost and power consumption, erroneous vibration signal, reducing signal-to-noise ratio, etc., to achieve large test depth, anti-interference Good characteristics and high signal-to-noise ratio

Inactive Publication Date: 2011-11-16
武汉鑫宏泰液压科技有限公司
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  • Abstract
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Problems solved by technology

However, in the process of transmission, the original signal is often interfered by other noise signals, and the signal-to-noise ratio decreases. With the increase of the transmission distance, some weak original signals are even submerged in the noise signal. In order to pick up useful original signals, acquisition The instrument needs to adopt different hardware measures and software means, which not only increases the system cost and power consumption, but also handles it improperly, and even obtains wrong vibration signals

Method used

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Embodiment Construction

[0014] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] figure 1 It is a structural schematic diagram of the digital three-component wave velocity probe of the present invention; figure 2 It is a schematic diagram of the circuit connection of the circuit module of the present invention; as figure 1 As shown, a digital three-component wave velocity probe includes a housing 1, a sensor core 2, an electromagnetic mechanism 3, an elastic arm 4 connected to the housing configured with the electromagnetic mechanism, the sensor core 2, the electromagnetic mechanism The mechanism 3 is set in the casing 1, the difference is that: the casing 1 is also provided with a circuit module 6, the end of the elastic arm 4 can be connected to the metal cover 5, and the electromagnetic mechanism 3 in the probe can pass the metal cover 5 is attracted to the end of the probe to control the action of the elast...

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Abstract

The invention relates to a digital three-component wave speed probe which comprises a shell, a sensor core, an electromagnetic mechanism and an elastic arm, wherein the elastic arm is matched with the electromagnetic mechanism and is connected with the shell, and the sensor core and the electromagnetic mechanism are arranged in the shell. The invention is also characterized in that a circuit module is also arranged in the shell; the circuit module comprises a power supply circuit, a central processing controller, a signal acquisition circuit and a digital signal transmission circuit; the signal acquisition circuit and the digital signal transmission circuit are respectively connected with the central processing controller; the signal acquisition circuit comprises a signal acquisition interface; the digital signal transmission circuit is provided with a signal transmission interface and a communication port connected with the central processing controller; the signal acquisition circuit comprises an acquisition channel for acquiring vibration signals; and a signal modulating circuit transmits the vibration signals which are converted into digital signals to a signal receiving end of a ground instrument.

Description

technical field [0001] The invention relates to the field of on-site wave velocity testing in the field of construction engineering, and is particularly suitable for engineering soil dynamic parameters of geotechnical engineering on-site testing, in particular to a digital three-component wave velocity probe. technical background [0002] Because the shear wave velocity of rock and soil, compression wave velocity, and the ratio of compression wave velocity and shear wave velocity of rock and soil can better reflect the dynamic characteristics of the site rock and soil, the engineering mechanical properties of the site soil, and the actual engineering conditions of the site soil, so (GB50011-2001) "Code for Seismic Design of Buildings" and (GB50021-2001) "Code for Geotechnical Engineering Investigation" both regard the compression wave velocity and shear wave velocity of the site soil as the discrimination of the site's seismic type, saturated soil liquefaction potential, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/18G01V1/22
Inventor 张卫东纪航滨颜华
Owner 武汉鑫宏泰液压科技有限公司
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