Depth transducer automatic calibration system and calibration method

Abstract

The invention relates to a depth transducer automatic calibration system and belongs to the field of electronic circuit design, a single chip software design, a communication protocol and the like. The system of the invention adopts synchronous control technology, which realizes synchronous collection of a pressure meter (1) air pressure (theoretical depth) and output voltage of a depth measurement single chip circuit. The method comprises the following steps: through an automatic data reading process of a display control system computer, establishing a voltage-depth calibration lookup table, conducting real-time downloading to a depth measurement single chip, thus completing automatic depth calibration of an underwater device. The system and method of the invention save human labor and time, effectively address the problem of low efficiency of artificial step-by-step calibration, and guarantee calibration reliability.

Description

Technical field [0001] The invention relates to a depth sensor automatic calibration system and a calibration method thereof, which belong to the fields of electronic circuit design, single-chip microcomputer software design, communication protocol and the like. Background technique [0002] In underwater detection equipment, the deployment depth of transducers is strictly limited. In order to quantitatively check the depth, a depth sensor (11) is installed on the housing of the electronic watertight cabin (2) above the transducer. The depth sensor (11) converts the water depth pressure into a voltage and outputs it to the depth detection single-chip microcomputer circuit (7) in the watertight cabin. The circuit board converts the voltage value into a depth value, which is transmitted to a system control computer for display through an underwater signal transmission cable (5). There is a voltage-to-depth conversion lookup table in the depth detection single-chip circuit (7...

AI Technical Summary

Problems solved by technology

The process of suppressing and recording data is quite labor-intensive and time-consuming, and there are also large errors

There are two main reasons: on the one hand, the manometer (1) needs a stable process, and the staff often have to keep an eye on the manometer (1) instrument panel to judge that the instrument panel pointer is stable before reading, and the manual reading itself will have errors; On the other hand, several points should be read for each depth sensor (11). Taking the working range of 0 to 120 meters as an example, in order to ensure the accuracy, one point should be taken at least 5 meters, and the readings can reach up to 24 points.

The independent step-by-step method greatly affects the efficiency of depth calibration work

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