Sensor de Deformação por Grade de Bragg em Fibra - Medidor de Deformação FBG - Conceito Classificação Princípio Compensação de Temperatura Aplicação Preço
Tabela de Conteúdo:
Ⅰ. Relationship among OFSCN® Fiber Bragg Grating Strain Sensor, OFSCN® Sensor de Deslocamento por Grade de Bragg em Fibra, OFSCN® Fiber Bragg Grating Stress Sensor and OFSCN® Fiber Bragg Grating Deformation Sensor
The OFSCN® Fiber Bragg Grating Strain Sensor is the most common and widely used sensor among OFSCN® Fiber Bragg Grating Sensors. It shares a direct correspondence with OFSCN® Sensor de Deslocamento por Grade de Bragg em Fibra, OFSCN® Fiber Bragg Grating Stress Sensor and OFSCN® Fiber Bragg Grating Deformation Sensor, so they have the same structure.
1. Relationship between OFSCN® Fiber Bragg Grating Strain Sensor and OFSCN® Sensor de Deslocamento por Grade de Bragg em Fibra
The OFSCN® Sensor de Deslocamento por Grade de Bragg em Fibra is an application that extracts parameters from OFSCN® Fiber Bragg Grating Strain Sensor. The relationship is given by: Displacement = Total Length × Strain. Therefore, the structure of OFSCN® Sensor de Deslocamento por Grade de Bragg em Fibra is the same as OFSCN® Fiber Bragg Grating Strain Sensor, with the difference lying in the calibration formula, which corresponds length to wavelength values.
2. Relationship between OFSCN® Fiber Bragg Grating Strain Sensor and OFSCN® Sensor de Tensão por Grade de Bragg em Fibra
The OFSCN® Sensor de Tensão por Grade de Bragg em Fibra is a calculating application of OFSCN® Fiber Bragg Grating Strain Sensor. The relationship is given by: Measured Stress = Elastic Modulus of the Measured Object × Strain. Therefore, the structure of OFSCN® Sensor de Tensão por Grade de Bragg em Fibra is the same as OFSCN® Fiber Bragg Grating Strain Sensor. However, as the tested materials differ after purchasing the OFSCN® Sensor de Tensão por Grade de Bragg em Fibra, the calibration formula corresponds micro-strain to wavelength values.
3. Relationship between OFSCN® Grade de Bragg em Fibra Strain Sensor and OFSCN® Grade de Bragg em Fibra Deformation Sensor
'OFSCN® Fiber Bragg Grating Deformation Sensor' is not a precise term. Deformation can be expressed as displacement - in this case, corresponding to OFSCN® Sensor de Deslocamento por Grade de Bragg em Fibra, or it can be expressed as strain - in this case, corresponding to OFSCN® Fiber Bragg Grating Strain Sensor.
Ⅱ. What is an OFSCN® Grade de Bragg em Fibra Strain Sensor? Basic Concept of FBG Strain Gauge
The OFSCN® Grade de Bragg em Fibra Sensor de Deformação é um tipo de sensor que usa uma Grade de Bragg em Fibra (FBG) como elemento sensível. É combinado com um Demodulador FBG (Analisador FBG, Interrogador FBG) e fixado ao objeto medido para medição, detecção e monitoramento de deformação.
The OFSCN® Grade de Bragg em Fibra Strain Sensor is also known as an FBG Strain Gauge. It belongs to the category of Grade de Bragg em Fibra Sensors and is a type of fiber sensor. In terms of function, it is classified as a strain sensor.
Ⅲ. Classification of OFSCN® Grade de Bragg em Fibra Strain Sensors
OFSCN® Grade de Bragg em Fibra Strain Sensors can be classified based on the different encapsulation materials, which result in different measurement ranges.
Currently, there are three types: Regular OFSCN® Grade de Bragg em Fibra Strain Sensors - metal encapsulation with a maximum measurement range of 2000 με (microstrain), Large Measurement Range OFSCN® Grade de Bragg em Fibra Strain Sensors - polymer material encapsulation with a maximum measurement range of 10,000 με (microstrain), and Ultra-Large Measurement Range OFSCN® Grade de Bragg em Fibra Strain Sensors - a hybrid encapsulation of polymer material and elastomer, with a minimum measurement range greater than 10,000 με (deformation rate of 1%) and typical measurement ranges of 100,000 με (microstrain) for a 10% deformation rate and 300,000 με (microstrain) for a 30% deformation rate.
OFSCN® Grade de Bragg em Fibra Strain Sensors can also be classified based on the number of FBG strain measurement points, such as single-point and multi-point sensors.
Eles também podem ser categorizados com base em diferentes materiais de encapsulamento, estruturas e processos de implantação, incluindo sensores de deformação FBG tipo tubo, tipo wafer (montados em superfície) e de superfície.
There are many other classification methods for OFSCN® Grade de Bragg em Fibra Strain Sensors, and DCYS can provide customized sensors of different types, which will not be further elaborated here...
Ⅳ. Principle of Strain Measurement for OFSCN® Grade de Bragg em Fibra Strain Sensor
OFSCN® Grade de Bragg em Fibra Strain Sensor can be used for strain and deformation measurements based on the following principle:
Ⅴ. Temperature Compensation Principle for OFSCN® Grade de Bragg em Fibra Strain Sensor
When used for strain and deformation measurements, OFSCN® Grade de Bragg em Fibra Strain Sensor needs to compensate for temperature effects. This process is known as temperature compensation for OFSCN® Grade de Bragg em Fibra Strain Sensor, and its principle is as follows:
Ⅵ. Application of OFSCN® Grade de Bragg em Fibra Strain Sensor - Civil Engineering Applications
OFSCN® Grade de Bragg em Fibra Strain Sensor is the most widely used among all optical fiber sensors. It can be widely applied in various environments for strain measurements, including civil engineering, bridges, tunnels, buildings, large mechanical components, slope applications, excavation projects, and other fields for strain and deformation measurements, monitoring, and testing. It also serves as the foundation for producing other types of FBG sensors. Its applications are exceptionally diverse, and further details are not elaborated here by DCYS.
Ⅶ. Structure of OFSCN® Grade de Bragg em Fibra Strain Sensor
DCYS produces the OFSCN® capillary series FBG strain sensors, which can be customized with various structures. The standard structures are as follows:
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| Structure diagram of OFSCN® Capillary seamless steel tube Grade de Bragg em Fibra strain sensor (single-ended ) |
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| Structure diagram of OFSCN® Tubular large-range Grade de Bragg em Fibra strain sensor (double-ended, can be connected in series) |
Ⅷ. Measuring Range of OFSCN® Grade de Bragg em Fibra Strain Sensor
OFSCN® capillary series Grade de Bragg em Fibra strain sensors produced by DCYS, have the following measuring ranges:
3、Sensor de Deformação por Grade de Bragg em Fibra de Longo Alcance - Medidor de deformação FBG de Bragg - Proteção metálica, faixa de medição: 30000με (personalizável até um máximo de 50000με)
Ⅸ. Model and Parameters of OFSCN Grade de Bragg em Fibra Strain Sensor
OFSCN® capillary series Grade de Bragg em Fibra strain sensors, which use DCYS's proprietary 'stainless steel seamless tube encapsulation technology' and 'high molecular material encapsulation technology' for FBG encapsulation, come in various models.
A estrutura do produto é simples e pode ser de extremidade única, encapsulando um único ponto FBG para inserção no objeto medido para medição de deformação, ou de extremidade dupla para imersão ou montagem em superfície para medição de deformação, alcançando medição de deformação quase-distribuída multiponto em série.
The specific model numbers and parameters of OFSCN® capillary series Grade de Bragg em Fibra strain sensors designed by DCYS can be found in the related product introduction.
Ⅹ. Installation and Placement of OFSCN® Grade de Bragg em Fibra Strain Sensor
OFSCN® capillary® series Grade de Bragg em Fibra strain sensors, produced by DCYS, have the advantages of simple installation and flexible placement. They can be installed in two main ways:
1. Acessórios personalizados para perfuração e fixação ou soldagem para instalação e posicionamento.
2. Materiais de base personalizados para colocação adesiva.
Ⅺ. Sensor de Deformação por Grade de Bragg em Fibra de Superfície - Sensor de Deformação por Grade de Bragg em Fibra de Superfície Curva
DCYS can customize special bases and fixtures for Grade de Bragg em Fibra strain sensors according to customers' usage requirements and the actual working environment of the sensors, enabling the installation and fixation of Grade de Bragg em Fibra strain sensors on the surface of the measured object.
At this point, the OFSCN® Grade de Bragg em Fibra strain sensor becomes a surface FBG strain sensor or surface-mounted FBG strain sensor. It can also be adhered and placed on various curved surfaces, turning it into a curved surface FBG strain sensor. If arranged on the surface of a pipeline, it can be referred to as a FBG pipeline strain sensor.
Ⅻ. Pontos Chave para a Compra de Sensor de Deformação por Grade de Bragg em Fibra
DCYS produces a rich variety and numerous models of the OFSCN® series Grade de Bragg em Fibra strain sensors. When making a purchase, you should consider your specific needs:
1. Determine claramente a faixa de medição da deformação que você precisa testar. Confirmar a faixa máxima de medição necessária o ajudará a decidir a estrutura do sensor de deformação FBG que você usará.
2. Determine claramente o número de pontos de medição de deformação necessários. Decida se você precisa de uma medição de deformação de ponto único ou multiponto, e se for multiponto, você precisa confirmar o número de FBG necessários para um sensor.
3. Consider the length of the object to be measured. The length of OFSCN® large-range Grade de Bragg em Fibra strain sensors can be customized, ranging from a few centimeters to tens of meters.
4. Decide the placement method of the sensor. Confirming the placement method of the Grade de Bragg em Fibra strain sensor will determine if you need corresponding customized sensor fixtures. DCYS has rich experience in customizing Grade de Bragg em Fibra strain sensors for various applications.
XIII. Precificação do Sensor de Deformação por Grade de Bragg em Fibra
After providing DCYS with the required information such as the measuring range, number of measurement points, length, and placement method of the Grade de Bragg em Fibra strain sensor, DCYS will calculate the price for you.