Electromagnetic log signal simulation detector

Abstract

The invention discloses an electromagnetic log signal simulation detector which comprises an upper shell and a lower shell, wherein a touch control liquid crystal screen is arranged in the center of the upper shell, a control circuit board is fixed in the lower shell, an inductive load is fixed in the lower shell and located on the adjacent side of the control circuit board; wherein the inductive load is used for simulation of an electromagnetic sensor, an interface connector is further fixed to the side edge of the lower shell of the load, and the interface connector is used for excitation signal input and induced potential signal output of the electromagnetic log. The invention is applied to small portable detection instruments, and can also be configured to various detection systems as a modular functional component. The detector can provide a navigational speed signal for an electromagnetic log host in a non-navigational state. Therefore, detection of the electromagnetic log host in a water-free environment is realized, meanwhile, whether the electromagnetic sensor on a real installation site is normal or not can be indirectly verified, use and operation are convenient, and popularization and application are easy.

Description

technical field [0001] The invention relates to the field of detection devices, in particular to an electromagnetic log signal simulation detector. Background technique [0002] Speed ​​and mileage are important navigation parameters of a ship. The log measures the running speed of a ship and calculates its voyage cumulatively. It is one of the most basic navigation equipment for a ship. [0003] The electromagnetic log is based on the principle of electromagnetic induction, through the magnetic field of the electromagnetic sensor cut by the water flow, the speed of the ship's navigation relative to the water is converted into an induced potential, and then converted into a speed and a voyage. [0004] Limited by the working principle of the electromagnetic log, in the production inspection or maintenance work of the traditional electromagnetic log, it is necessary to build a large-scale pool, and configure a motion mechanism to drive the electromagnetic sensor to perform li...

AI Technical Summary

Problems solved by technology

[0005] Restricted by the above factors, the electromagnetic sensor cannot provide the induction potential signal of the continuously adjustable speed under the state of static water flow, so the maintenance personnel cannot effectively detect the electromagnetic log in the room or at the ship maintenance site.

[0006] However, for most maintenance and repair units, if a water detection environment is constructed, there will be problems such as high construction cost, low detection efficiency and complicated operation.

Especially at the installation site of the ship, it is impossible to directly perform daily maintenance and testing on the log equipment without dismantling it

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