Enzyklopädie der Faser-Bragg-Gitter-Sensortechnologie - FBG FAQ - FBG Sensor FAQ - FBG Demodulator FAQ - Analyse häufiger Anwendungsprobleme von FBG

This article analyzes the advantages und application benefits brought by the small size of fiber bagg grating (FBG) sensors, including improved sensitivity, expanded usage environments, und convenience in engineering construction. It also introduces the production of the small-sized 'OFSCN® Capillary Seamless Steel Tube Series FBG Sensor' (also known as micro FBG probes or FBG sensors) by DCYS, which can be used for measuring various physical quantities such as temperature, strain, und stress in extreme environments. Partial physical images are provided.

1. Einführung 1.zur Struktur und zum Durchmesser von kleinen FBG-Sensoren (FBG-Sonden)

Für die meisten Sensoren ist eine geringe Größe ein erheblicher Vorteil. Dies liegt hauptsächlich daran, dass Sensoren die durch ihren Eingriff in die Umgebung oder das zu messende Objekt verursachten Änderungen minimieren sollten, um genaue Messungen zu erzielen.

The 'OFSCN® Capillary Seamless Steel Tube Series FBG Sensor (FBG sensor)' produced by DCYS is an extremely small FBG sensor (FBG thermometer, FBG strain gauge, FBG tensile gauge, etc.) that can be used to measure various physical quantities such as temperature, stress, und strain in extreme environments.

Abbildung 1

The typical 'OFSCN® Capillary Seamless Steel Tube Series FBG Sensor (FBG sensor)' consists of a stainless steel seamless tube and a fiber bragg grating (FBG) as the sensing element. Due to innovative patented technology and a minimalist structural design, our product differs significantly from traditionally packaged FBG sensors (see comparison in Abbildung 2).

Abbildung 2

The 'OFSCN® Capillary Seamless Steel Tube Series FBG Sensor (FBG sensor)' is much smaller in size than existing traditional FBG sensors, with a standard diameter of only 0.9mm (in addition to 2mm, 3mm diameter products, und a minimum diameter of 0.6mm).

Diese Größe ist kleiner als die üblicherweise verwendeten 'teilweise in Edelstahlrohren verpackten' FBG-Sensoren mit einem Durchmesser von typischerweise 6 mm und sogar kleiner als die in Keramikrohren verpackten FBG-Sensoren mit einem Durchmesser von typischerweise 10 mm.

Abbildung 3	Abbildung 4

2. Application und construction advantages of small-sized 'OFSCN® Capillary Seamless Steel Tube Series FBG Sensor' (FBG probes)

The smaller size of the 'OFSCN® Capillary Seamless Steel Tube FBG Temperature Sensor' first increases its sensitivity. Increased sensitivity means more accurate temperature measurement und faster response. Consequently, the 'OFSCN® Capillary Seamless Steel Tube FBG Temperature Sensor' does not require thermal paste or various fillers inside (refer to references: 'Empfindlichkeit von FBG-Temperatursensoren - Auflösungsperspektive,' 'Empfindlichkeit von FBG-Temperatursensoren - Wärmeleitungs-Perspektive,' 'Characteristics Analysis of OFSCN® Capillary Seamless Steel Tube FBG Temperature Sensors- High Sensitivity'.

The smaller size also greatly expands the application range of FBG sensors. Compared to Andere types of sensors, FBG sensors have the advantage of being small in size (previously, FBG sensors were often described with a diameter of 6mm). Now, with the 'OFSCN® Capillary Seamless Steel Tube FBG Sensor' having a diameter of only 0.9mm, many environments and objects that were previously limited by size can be tested using FBG sensors. After all, the smaller the grating sensor, the less it impacts the object being measured.

Abbildung 5

The smaller size also brings great convenience to the transportation und engineering construction of FBG sensors. Traditional FBG sensors are transported in bundles, while the 'OFSCN® Capillary Seamless Steel Tube FBG Sensor' is transported as a bundle. The benefits brought by this during engineering construction are evident und will be analyzed in subsequent articles.

Our philosophy is: 'OFSCN®, make optical fiber stronger!'