Laser optical electric axis power measuring probe

Abstract

The invention relates to a laser optical electric axis power measuring probe. The probe mainly comprising a measuring probe optical chamber (1), an optical fiber focus lens (9), an optical electric diode (10) and a laser diode (12); the measuring probe optical chamber (1) is provided with a fixing slot which contains and fixes the optical fiber focus lens (9), the optical electric diode (10) and the laser diode (12), wherein the optical fiber focus lens (9) and the laser diode (12) are connected by an optical fiber. The measuring probe provided by the invention has the following advantages that the probe has integrated structure, therefore the mounting space is saved; by adopting the embedded structure, the optical fiber is convenient to mount; through collecting laser by using the optical fiber focus lens, the measuring accuracy is enhanced; and the whole probe has the advantages of being waterproof and dust proof, being free from the affect of working environment and the like.

Description

technical field [0001] The invention relates to a part of a measuring device, in particular to a laser photoelectric shaft power measurement probe suitable for photoelectric non-contact shaft power measurement, which is suitable for applications such as monitoring the working condition of a shaft system. Background technique [0002] In ship navigation, the propulsion shafting is an important part to realize the energy transfer between the ship's main engine and the propeller (generally the propeller), and it is an indispensable and important part of the ship's power plant system. With the development of ships in the direction of large-scale, high-speed and automation, higher requirements are put forward for the safety and reliability of propulsion shafting. By monitoring the operating status of the ship's power system online in real time, and judging whether there is a fault and the severity of the fault, the reliability of the ship's power system can be improved. At the s...

AI Technical Summary

Problems solved by technology

Although the current relatively advanced shaft power monitoring device uses a telemetry strain gauge, the measurement effect is still unsatisfactory. In addition, the installation and maintenance of the strain gauge is difficult and it is easily affected by complex environmental factors. The performance is not stable enough, and the measurement results are not satisfactory. Accurate, requires regular calibration

Non-contact measurement is the future development direction of shafting power and torsion measurement. At present, there are mainly magnetoelastic measurement method and laser Doppler measurement method. The former is measured according to the magnetoelastic effect, but its effect depends to a large extent It depends on the material properties and processing technology of the shaft; the latter is measured based on laser Doppler technology and optical heterodyne principle, but the error caused by the temperature drift of the photoelectric measurement sensor cannot be avoided

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