Accelerometer, probe and system for dynamic pile testing method of intelligent terminal interface

Abstract

The invention discloses an accelerometer probe for a dynamic pile testing method of an intelligent terminal interface. The probe comprises a probe casing, wherein an acceleration sensor, an excitationpower supply circuit, a power management module and a signal modulation module are arranged in the probe casing, the acceleration sensor is used for acquiring an acceleration signal produced during nondestructive completeness detection with the dynamic pile testing method; the excitation power supply circuit is used for producing excitation voltage and providing the excitation voltage for the accelerometer probe; the power management module is used for providing stable bias voltage and constant current for the accelerometer probe; the signal modulation module is used for performing modulationaccording to the waveform of the acceleration signal. The accelerometer probe has the advantages of being simple in structure, low in cost, small in size, light in mass, convenient to carry and the like and overcomes the defects that the cost is high due to a special dynamic tester, the integration of components and parts is low, carrying is inconvenient due to large size and weight, the storagecapacity is limited, the operation interface is not user-friendly, the analysis processing capability is low and the like.

Description

technical field [0001] The invention relates to the technical field of accelerometers, in particular to an accelerometer, a probe and a system for pile foundation dynamic measurement methods for intelligent terminal interfaces. Background technique [0002] The pile foundation dynamic measurement method is a method of judging the integrity of the measured object by applying a transient or steady-state excitation to the measured object, and observing and analyzing the time domain or frequency domain signal of its reflected wave. It is mainly used in the field of construction engineering, and the method is used to perform non-destructive integrity detection on building construction (mainly foundation piles). Accelerometer probes are currently the most widely used reflected wave detectors for low strain measurement. [0003] Most low-strain dynamic testers in the market must use a dedicated dynamic tester because the existing accelerometer probes require stable excitation volt...

AI Technical Summary

Problems solved by technology

[0003] Most low-strain dynamic testers in the market, because the existing accelerometer probes require stable excitation voltage and constant current power supply, and the returned waveform has sensitivity requirements for the receiving device, so a dedicated dynamic tester must be used

The special dynamic tester is usually independently developed by the manufacturer, which has disadvantages such as high cost, low integration of components, large volume and weight, not easy to carry, limited storage capacity, unfriendly operation interface, and low analysis and processing capabilities.

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