Self-calibration ultrasonic survey pin device and measuring method

Abstract

The invention discloses a self-calibration ultrasonic survey pin device and a measuring method. The device comprises a survey pin rod which is provided with a standard reflection plate with a fixed distance to an ultrasonic transceiver module, the ultrasonic transceiver module is fixed to the top end of the survey pin rod, and the ultrasonic transceiver module comprises a single chip microcomputer, a TDC 1011 ultrasonic transceiving special chip machine, an ultrasonic transmitting circuit, an ultrasonic receiving circuit and an ultrasonic transducer. The single chip microcomputer and the TDC 1011 ultrasonic transceiving special chip machine are connected to an input end of the ultrasonic transmitting circuit and an output end of the ultrasonic receiving circuit, an output end of the ultrasonic transmitting circuit is connected to a control end of the ultrasonic transducer, and an output end of the ultrasonic transducer is connected to an input end of the ultrasonic receiving circuit. The standard reflection plate is arranged to face one side of the ultrasonic transducer emitting ultrasonic waves. According to the self-calibration ultrasonic survey pin device and the measuring method, the labor cost of traditional measurement is saved, at the same time a monitoring error caused by the damage to slope stability due to trampling in manual reading is avoided.

Description

technical field [0001] The invention belongs to the technical field of testing, and in particular relates to a self-calibrating ultrasonic brazing device and a measuring method. Background technique [0002] The brazing method is suitable for the observation of soil loss on stable slopes formed by dispersed soil-like accumulations. The specific operation of this method is: regularly insert a number of fine drills into the slope to be measured, the common measuring drill layout is set as a 3×3 nine measuring drill square array, mark the position on the inserted drill that is equal to the soil surface, as the original At the height point, the thickness of the surface soil layer is manually observed regularly, and the data related to water and soil loss such as soil erosion are calculated. This method requires surveyors to regularly arrive at the site to check the status of the inserted drills, and manually measure the thickness of the ground surface reduction of each inserted...

AI Technical Summary

Problems solved by technology

Generally, the temperature, humidity, air pressure and other environmental values ​​during the measurement are determined, and the accurate ultrasonic sound velocity can be obtained through mathematical modeling correction, but adding these environmental measurement devices to the measurement makes the measurement too complicated and increases the cost of the device

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