Data recorder for destructive experiment of external pressure vessel

Abstract

The invention discloses a data recorder for destructive experiment of an external pressure vessel. The data recorder comprises a casing body and a test recording device, wherein the casing body comprises an upper casing and a lower casing, which are butted to form a closed cavity, and a first sealing device is disposed at the docking joint; the upper casing or the lower casing is provided with a lead through hole; the test recording device is fixedly mounted in the casing body by a damping device and comprises an STM32 single chip microcomputer, a micro SD card and an outer guide wire; one endof the outer guide wire passes through the lead through hole to the casing body, and the other end is connected to the STM32 single chip microcomputer; the communication port of the STM32 single chipmicrocomputer is connected to the communication port of the micro SD card; the outer guide wire comprises an external power supply lead and an external sensor lead; and a second sealing device is disposed between the lead through hole and the outer guide wire. The device provided by the invention has good shock resistance, impact resistance and waterproof performance, and can be used for recording various test signals for destructive experiment of the external pressure vessel.

Description

technical field [0001] The invention belongs to the technical field of destructive experiments of external pressure vessels, in particular to a data recorder used for destructive experiments of external pressure vessels. Background technique [0002] In destructive engineering tests or engineering tests in harsh and dangerous environments, such as destructive experiments on external pressure vessels, it is necessary to test and record the parameters inside the pressure vessel, and the internal test site of the pressure vessel cannot externally connect the sensor signal Large-scale test and analysis instruments cannot be externally output through wireless communication, and a data recording and acquisition device is required. [0003] The existing data recording and acquisition devices do not have the functions of shock resistance, shock resistance and waterproof, and cannot meet the requirements for recording data in destructive experiments on external pressure vessels; at t...

AI Technical Summary

Problems solved by technology

[0002] In destructive engineering tests or engineering tests in harsh and dangerous environments, such as destructive experiments on external pressure vessels, it is necessary to test and record the parameters inside the pressure vessel, and the internal test site of the pressure vessel cannot externally connect the sensor signal Large-scale test and analysis instruments cannot be connected to the external output through wireless communication, so a data recording and acquisition device is required

[0003] The existing data recording and acquisition devices do not have the functions of shock resistance, shock resistance and waterproof, and cannot meet the requirements for recording data in destructive experiments on external pressure vessels; at the same time, experiments show that the existing data recording and acquisition devices are used in destructive experiments. There is a problem of being extremely vulnerable to damage, failure and data loss

The cost of destructive experiments on external pressure vessels is high and the repeatability is poor. If the reliability of experimental data collection is poor, it will undoubtedly increase the cost of experiments to a large extent.

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