Enciclopédia de Tecnologia de Sensoriamento por Rede de Bragg em Fibra - FAQ FBG - FAQ Sensor FBG - FAQ Demodulador FBG - Análise de Problemas Comuns de Aplicação FBG
Resistência à Pressão do Sensor FBG - Sensor FBG de 180 MPa - Pressão Interna, Pressão Externa, Pressão Lateral de 9000 N
This article analyzes the advantages e benefits brought by good pressure resistance in FBG sensors, including the expansion of application environments e 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 e parameters.
1. Estrutura e Vantagens dos Sensores de Rede de Bragg em Fibra (Sensores FBG) Resistentes a Altas Pressões (Termômetro FBG, Sonda de Temperatura FBG)
A capacidade de resistir à pressão (externa, interna e lateral) determina diretamente os ambientes nos quais os sensores FBG podem ser usados e também afeta a construção de engenharia dos sensores FBG (sondas FBG). Vamos explicar brevemente as vantagens trazidas pela boa resistência à pressão para os sensores FBG (sondas FBG) sob a perspectiva da resistência à pressão.
 |
| 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 e 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, e lateral pressure.
 |
 |
|
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 e 2). Based on our calculations, the pressure resistance of the main body of the sensor is greater than 180 MPa (external pressure).。
 |
|
Figura 4 |
O número 180 MPa pode não ser intuitivamente compreensível para muitas pessoas. Na vida diária, a pressão atmosférica é de aproximadamente 0,1 MPa, que é aproximadamente equivalente à pressão da água a uma profundidade de 10 metros debaixo d'água. 1 MPa é aproximadamente a pressão da água a uma profundidade de 100 metros debaixo d'água, e 180 MPa é aproximadamente a pressão da água a uma profundidade de 18.000 metros debaixo d'água.
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 e 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!'
 |
|
Figura 5 |
In terms of pressure resistance, there is no comparison between OFSCN® Capillary Seamless Steel Tube FBG Sensors e traditional FBG sensors. They are not product in the same level, so there is no need to elaborate further.
3. Application e 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, e seamless steel tube sensing cables), communication e 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 e losses in construction, thus lowering the installation cost of the grating sensors.
Além disso, é inevitável que ocorram colisões durante a construção de engenharia, e os sensores de rede podem ser diretamente cobertos ou espremidos por outros materiais ou objetos sob teste. Em tais situações, a capacidade dos sensores de suportar pressão lateral torna-se 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 e 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, e FBG stress sensors that are resistant to lateral pressure; FBG brand is 'OFSCN'.