Enciclopedia de Tecnología de Detección por Rejilla de Bragg de Fibra - Preguntas Frecuentes FBG - Preguntas Frecuentes Sensores FBG - Preguntas Frecuentes Demoduladores FBG - Análisis de Problemas Comunes de Aplicación FBG
Resistencia a la presión del sensor FBG - Sensor FBG de 180 MPa - Presión interna, Presión externa, Presión lateral de 9000 N
This article analyzes the advantages y benefits brought by good pressure resistance in FBG sensors, including the expansion of application environments y the convenience in engineering construction. It also introduces the 'OFSCN® Capillary Seamless Steel Tube Series Fiber Bragg Grating Sensor' produced by DCYS (These series of products are all high-pressure-resistant fiber optic gratingFBG sensors used for temperature, strain, or stress measurements). It shows part of the physical illustrations y parameters.
1. Estructura y Ventajas de los Sensores de Rejilla de Bragg de Fibra (Sensores FBG) Resistentes a Alta Presión (Termómetro FBG, Sonda de Temperatura FBG)
La capacidad de resistir la presión (externa, interna y lateral) determina directamente los entornos en los que se pueden utilizar los sensores FBG y también afecta la construcción de ingeniería de los sensores FBG (sondas FBG). Expliquemos brevemente las ventajas que aporta una buena resistencia a la presión para los sensores FBG (sondas FBG) desde la perspectiva de la resistencia a la presión.
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| Figura 1 |
The 'OFSCN® Capillary Seamless Steel Tube FBG Sensor' produced by DCYS is made of stainless steel seamless tubes. Benefiting from the characteristics of stainless steel material y seamless tube structure, this series of FBG sensors ( FBG probes) has high pressure resistance. The high pressure resistance mentioned here includes the ability to withstand external pressure, internal pressure, y lateral pressure.
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Figura 2 |
Figura 3 |
2. Pressure Resistance of OFSCN® Capillary® Seamless Steel Tube Fiber Bragg Grating Sensors (FBG sensors, FBG probes)
The main body of the OFSCN® Capillary Seamless Steel Tube FBG sensor ( FBG probe) is made of stainless steel seamless tubes. The standard outer diameter of the OFSCN® Capillary Seamless Steel Tube FBG sensor ( FBG probe) is 0.9 mm, with a wall thickness of 0.18 mm (see Figures 1 y 2). Based on our calculations, the pressure resistance of the main body of the sensor is greater than 180 MPa (external pressure).。
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Figura 4 |
El número 180 MPa puede no ser intuitivamente comprensible para muchas personas. En la vida diaria, la presión atmosférica es de aproximadamente 0.1 MPa, lo que equivale aproximadamente a la presión del agua a una profundidad de 10 metros bajo el agua. 1 MPa es aproximadamente la presión del agua a una profundidad de 100 metros bajo el agua, y 180 MPa es aproximadamente la presión del agua a una profundidad de 18,000 metros bajo el agua.
The deepest known point on Earth is the Mariana Trench, with a depth of 11,034 meters (approximately 110 MPa of pressure). If someone commissioned us to produce an OFSCN® Capillary Seamless Steel Tube FBG Sensor of such length y threw it into the deepest part of the Earth for fiber sensing, there would be no problem. Our sensor would not be damaged by the water pressure at that depth. Because our philosophy is: 'OFSCN®, make optical fiber stronger!'
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Figura 5 |
In terms of pressure resistance, there is no comparison between OFSCN® Capillary Seamless Steel Tube FBG Sensors y traditional FBG sensors. They are not product in the same level, so there is no need to elaborate further.
3. Application y Construction Advantages of OFSCN® Capillary Seamless Steel Tube Fiber Bragg Grating Sensors (FBG sensors , FBG probes) with High Pressure Resistance
The high pressure resistance of OFSCN® Capillary Seamless Steel Tube FBG Sensors greatly expands their range of applications. In the past, it was challenging to measure high-pressure locations deep within the Earth, but with the availability of OFSCN® seamless steel tube products (including FBG sensors, distributed fiber optic sensors, special fiber optic jumpers, y seamless steel tube sensing cables), communication y measurement in these high-pressure locations have become less difficult.
In terms of engineering construction, similar to the advantages of high tensile strength, the high pressure resistance of OFSCN® Capillary Seamless Steel Tube FBG Sensors directly reduces the difficulty y losses in construction, thus lowering the installation cost of the grating sensors.
Además, es inevitable que se produzcan colisiones durante la construcción de ingeniería, y los sensores de rejilla pueden ser cubiertos o apretados directamente por otros materiales u objetos bajo prueba. En tales situaciones, la capacidad de los sensores para soportar la presión lateral se vuelve crucial.
Based on our calculations, the standard OFSCN® Capillary Seamless Steel Tube FBG Sensor can withstand lateral pressure of more than 9000 N. In practical applications, our FBG sensors can be placed on the road surface y withstand repeated pressure from small cars. Apart from surface wear, there will be no actual damage to the sensors.
DCYS is a professional manufacturer of high-strength FBG sensors, providing information such as fiber bragg grating temperature sensors that are resistant to internal pressure, FBG strain sensors that are resistant to external pressure, y FBG stress sensors that are resistant to lateral pressure; FBG brand is 'OFSCN'.