A temperature-resistant and pressure-resistant optical fiber adapter and its manufacturing and testing process

Abstract

The invention discloses a temperature and pressure-resistant optical fiber adapter, a main body of which is a base. The temperature and pressure-resistant optical fiber adapter is characterized in that a through hole is arranged in the base, a conical surface is arranged in the through hole, a regulating ring, a compacting ring and a sealing ring are arranged in the through hole, an optical fiber core rod is inserted and fixed in the through hole of the base through the regulating ring, the compacting ring and the sealing ring, and all parts are connected into a whole. A making and detecting process of the temperature and pressure-resistant optical fiber adapter comprises the steps of: connecting the optical fiber core rod with the sealing ring to form a pre-configuring body; respectively connecting the pre-configuring body with the regulating ring and the compacting ring to form a semi-configuring body; placing the semi-configuring body in the through hole in the base and sealing the semi-configuring body in the base to form a finished product; and carrying out pressure-resistant and temperature-resistant tests on the finished product by respectively adopting a temperature-resistant instrument and a pressure-resistant instrument; and carrying out optical testing on the finished product by an optical instrument. The temperature and pressure-resistant optical fiber adapter has the advantages of no electromagnetic interference, small size, temperature and pressure resistance, simple structure, convenience in installation and better interchangeability, and is easily installed on a part at which the conventional temperature measurement is difficult in arriving.

Description

technical field [0001] The invention relates to the technical field of optical fiber grating sensing, relates to a temperature sensor based on optical fiber grating, and in particular relates to a temperature-resistant and pressure-resistant optical fiber adapter that can effectively connect optical fiber gratings in harsh environments such as high voltage and high electromagnetic, and a manufacturing detection process thereof . Background technique [0002] During the operation of power equipment, it is affected by factors such as electricity, heat, natural environment, long-term work, overloaded work, etc., which can easily lead to equipment aging, performance degradation, reliability reduction, and even endanger the safe operation of the system. Such as transformers, switch cabinets, ring network cabinet contacts or cable joints due to poor contact, the contact resistance increases, resulting in excessive temperature rise of the contacts, causing fire, explosion and other...

AI Technical Summary

Problems solved by technology

However, although the existing optical fiber adapters have the advantages of low price, convenient installation, good interchangeability and repeatability; but they all have the disadvantages that they can only work under normal working conditions, are not resistant to pressure and temperature, and cannot adapt to harsh environments; and The structure of existing fiber optic adapters is basically as follows, consisting of a housing (which protects the C-shaped ring and the fixing part, and can be fixed on the required object at the same time, and has corresponding different interface forms to connect with the fiber jumper) , C-shaped ring (ceramic, fiber optic plugs are in contact with the C-shaped ring, which plays the role of adjustment, positioning, etc.), fixing parts (fixing the C-shaped ring), etc.; some adapters contain adjustment parts such as springs, which play a role Adjust the role of positioning, not listed in detail here

The optical fiber adapters in the prior art are all open structures, do not have sealing conditions, and have a small operating temperature range, which cannot meet the use in various harsh environments in the power industry

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