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Pressure Resistance of FBG Sensor - 180 MPa FBG Sensor - Internal Pressure, External Pressure, Lateral Pressure of 9000 N

This article analyzes the advantages and benefits brought by good pressure resistance in FBG sensors, including the expansion of application environments and 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 and parameters.

1. Yüksek Basınca Dayanıklı Fiber Bragg Izgara Sensörlerinin (FBG Sensörleri) Yapısı ve Avantajları (FBG Termometre, FBG Sıcaklık Probu)

Basınca (harici, dahili ve yanal) dayanma yeteneği, FBG sensörlerinin kullanılabileceği ortamları doğrudan belirler ve aynı zamanda FBG sensörlerinin (FBG probları) mühendislik yapısını da etkiler. FBG sensörleri (FBG probları) için iyi basınç dayanımının getirdiği avantajları basınç dayanımı açısından kısaca açıklayalım.

OFSCN® Kılcal Dikişsiz Çelik Borunun Fiziksel Diyagramı FBG Sıcaklık/Gerilim/Gerilim Sensörü (Bunun bir parçası)
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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 and 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, and lateral pressure.

OFSCN® Kılcal Dikişsiz Çelik Boru Tek Uçlu FBG Sıcaklık Sensörü (Tek Noktalı, Çok Noktalı, FBG Dizisi/Dizisi) OFSCN® Kılcal Dikişsiz Çelik Borunun Kuyruk Ucu Tek Uçlu FBG Sıcaklık Sensörü (Tek Noktalı, Çok Noktalı, FBG Dizisi/Dizisi)

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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 and 2). Based on our calculations, the pressure resistance of the main body of the sensor is greater than 180 MPa (external pressure).。

OFSCN® Kılcal Dikişsiz Çelik Boru Çift Uçlu FBG Sıcaklık/Gerilim/Gerilim Sensörü (seri olarak bağlanabilir)

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180 MPa sayısı birçok kişi için sezgisel olarak anlaşılamayabilir. Günlük yaşamda atmosferik basınç yaklaşık 0,1 MPa'dır; bu da kabaca su altında 10 metre derinlikteki suyun basıncına eşdeğerdir. 1 MPa yaklaşık olarak 100 metre derinlikteki suyun basıncına, 180 MPa ise kabaca 18.000 metre derinlikteki suyun basıncına karşılık gelir.

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 and 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!'

 

0,9 mm, 0,6 mm OFSCN® Kılcal Dikişsiz Çelik Boru FBG sensörü ve 6 mm Geleneksel FBG Sensörü arasında Boyut Karşılaştırması

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In terms of pressure resistance, there is no comparison between OFSCN® Capillary Seamless Steel Tube FBG Sensors and traditional FBG sensors. They are not product in the same level, so there is no need to elaborate further.

3. Application and 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, and seamless steel tube sensing cables), communication and 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 and losses in construction, thus lowering the installation cost of the grating sensors.

Ayrıca, mühendislik inşaatı sırasında çarpışmaların meydana gelmesi kaçınılmazdır ve ızgara sensörleri, test edilen diğer malzemeler veya nesneler tarafından doğrudan kaplanabilir veya sıkıştırılabilir. Bu gibi durumlarda sensörlerin yanal basınca dayanma yeteneği çok önemli hale gelir.

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 and 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, and FBG stress sensors that are resistant to lateral pressure; FBG brand is 'OFSCN'.

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