1. Application in infrastructure engineering Internet of Things
In the process of construction and use of major projects such as highways, bridges, tunnels and buildings, there are often local collapses, leaks and fires in tunnels, and local cracks and collapses in bridges, which not only seriously threaten the safety of people's lives and property, but also affect the rapid and stable development of the national economy. The optical fiber sensor is embedded in these buildings or public facilities, and the structural deformation, structural dynamic characteristics and traffic load of the bridge can be felt, and the tension sensor can be used to feel the local deformation of the tunnel prone to collapse, and this information can be combined with the Internet to form a "optical fiber Internet of Things" to achieve long-term and stable real-time monitoring of these infrastructures and reduce the occurrence of accidents.
2. Application in the modern agricultural Internet of Things
The development of the Internet of Things and sensing technology has promoted the progress of agricultural modernization technology. The sensor technology is applied to the seedling, growth, harvesting and storage of crops, and forms an Internet of Things system, which can make the production and management of agriculture achieve the purpose of high yield and low consumption.
In the process of seedling raising and growth of crops, the temperature, relative humidity, light intensity, nutrients in the soil, PH value and carbon dioxide concentration in the crop growth environment are detected through optical fiber temperature sensors, optical fiber humidity sensors and optical fiber carbon dioxide sensors, and real-time feedback to the management center, and then the corresponding parameters are adjusted through automatic control devices, so that crops can have an optimal growth environment and achieve the purpose of rapid growth and high yield.
In addition, in the process of processing and storage of agricultural products, optical fiber temperature sensors and optical fiber humidity sensors can also be used to obtain environmental information of grain silos and be used to guide ventilation and drying operations. For the storage of fruits and vegetables, it is necessary to measure the concentration of gases such as ethylene, oxygen, carbon dioxide, ammonia, and freon. This information can be fed back to the monitoring center through the IoT system for real-time monitoring and remote control.
3. Application in the intelligent perimeter intrusion prevention system
The perimeter intrusion prevention system based on optical fiber sensing technology is a major application highlight in the industrial field with the development of optical fiber sensing technology in recent years. At present, there are many kinds of sensors used in the perimeter intrusion prevention system, so the technical solutions of the system are also very different, but in general, the optical fiber perimeter intrusion sensor is used to feel the external intrusion situation, and timely alarm, the technology can be widely used in important places such as airports, power stations and military bases.
4. Other applications
In national defense, optical fiber sensors can be used for underwater acoustic submarine detection (fiber optic hydrophones), optical fiber guidance, attitude control, structural damage detection of aerospace vehicles and detection of battlefield environment (electromagnetic environment, biochemical environment, etc.); In the power system, it can be used to measure the current, voltage and temperature inside the rotors, stators and high-voltage transformers of large motors; In addition, optical fiber sensors can also be used for the monitoring of downhole pressure, temperature and other parameters in the process of oil and gas exploitation, and the leakage monitoring of oil pipelines, which can be combined with the Internet to form a powerful Internet of Things network to achieve safe production and management.
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Banner Sensors – The basic building blocks of fiber optic sensors
There are three basic components of a fiber optic sensor network, one of which is called a single-point sensor. An optical fiber only plays the role of transmission here, and the other is called a multi-point sensor, where an optical fiber strings many sensors together, so that many sensors can share a light source to achieve networking.
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Banner Sensors – A common term for pressure sensors
Pressure is one of the important parameters in industrial production, and in order to ensure the normal operation of production, it must be monitored and controlled. The following are common terms used when selecting pressure sensors:
Standard press
The magnitude of the pressure expressed by atmospheric pressure is greater than the atmospheric pressure ...
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Banner Sensors - Introduction to the classification of infrared sensors
Common infrared sensors can be divided into thermal sensors and photonic sensors.
1. Thermal sensor
The thermal sensor is the use of incident infrared radiation to cause the temperature change of the sensor, and then make the relevant physical parameters change accordingly, by measuring the change of the relevant physical parameters to determine the ...
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Problem solving for Banner's QCM series of color sensors
1. Discrete photodiode with color filter
The traditional practice of sensing color is to combine three to four photodiodes on a single chip, with red, green, and blue color filters placed on the surface of the photodiode (usually two blue color filters are combined together to compensate for the ...
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Banner Sensors – How to Judge Good or Bad Fiber Optic Sensors?
How to judge the quality of fiber optic sensors:
1. Packaging, first of all, it depends on whether the packaging of the fiber grating sensor is suitable for your application;
2. Range, whether the range of the FBG sensor is consistent with your measurement index;
3. Accuracy, the accuracy of the sensor itself as ...
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Banner Sensors - Precautions for the use of linear displacement sensors
1. If the electronic ruler has been used for a long time, and the seal has been aged, and there are many impurities mixed with it, and the water mixture and oil will seriously affect the contact resistance of the brush, which will make the displayed numbers keep jumping. At this time, it can be said that the electronic ...
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Banner Sensors – How pressure sensors work
1. Piezoresistive pressure sensor
Resistive strain gauges are one of the main components of piezoresistive strain transducers. The working principle of metal resistance strain gauge is the phenomenon that the resistance value changes due to mechanical deformation due to the strain resistance adsorbed on the base material, which is commonly known as the resistance strain effect.
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Banner Sensors – Seven Common Sensors and Their Introduction
1. Physical sensor:
A physical sensor is a sensor that detects a physical quantity. It is a device that uses certain physical effects to convert the measured physical quantity into a signal in the form of energy that can be easily processed. There is a definite relationship between the output signal and the input signal. The main physical ...
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What are the application areas of Banner pressure sensors?
Everyone is familiar with the brand Banner, what are the fields of sensor applications under Banner? Today, we will introduce the application fields of Banner sensors, which are mainly used in: booster cylinders, boosters, gas-hydraulic booster cylinders, gas-liquid boosters, presses, compressors, air conditioning and refrigeration equipment, etc.
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Banner Sensors – How to Choose a Color Sensor?
1. What is the purpose of the application?
2. What are the existing power supply types? AC or DC? What is the rated voltage?
3. What equipment should be controlled by the detection system? Conveyor or inspection system?
4. What is the output load?
5. What is the working speed of the required system? In order to...
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Banner Sensors – Analysis of common alarm codes for pressure sensors
First, the reason for the alarm code of the pressure sensor
There are generally a variety of reasons for the alarm code of a pressure sensor, among which the following conditions are the following:
1. The sensor circuit is short-circuited or broken due to damage or aging of the sensor sensing element, which causes the machine code to send an alarm signal.
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Banner Sensors – A debugging method for fiber optic sensors
1. Fully automatic calibration
When the workpiece enters the sensitive area of the probe, hold down the "SET" button for 3 seconds, and the sensitivity value will be set and displayed in green
2. Two-point calibration
When the workpiece is not in the sensitive area, hold down the "SET" key for three seconds, there is a ...
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Banner Sensors - Introduction to the characteristics of distributed fiber optic sensors
(1) The sensing element in the distributed optical fiber sensing system is only optical fiber;
(2) The one-dimensional distribution map of the measured optical fiber area can be obtained in one measurement, and the two-dimensional and three-dimensional distribution of the measured can be measured by erecting the optical fiber into a grating-like shape;
(3) The space of the OTDR system ...
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Banner Sensors – Precautions for the use of grating displacement sensors
1. Add a protective cover as much as possible, and clean up the chips and oil splashed on the ruler in time to strictly prevent any foreign matter from entering the inside of the grating ruler sensor housing.
2. When plugging and unplugging the grating displacement sensor and the plug holder of the digital display, the power should be turned off.
3. For the extension of the dust seal ...
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"2018 China Automation Industry Annual Conference" Banner won another award
The 2018 China Automation Industry Annual Conference and the 13th China Automation Industry Century Tour (CAIAC2018) were held on April 12, 2018 at Tianma Hotel, Shaoxing, Zhejiang.
CAIAC2018 aims to remember and look forward to China ...
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Banner Sensors – A detailed description of the 20 most common types of sensors
1. Temperature sensor
Temperature sensors are used to detect temperature and heat energy and convert it into an electrical signal (transmitted in the form of voltage or current).
We actually have the following types of temperature sensors to use.
1. Thermometer
2. Thermocouples
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Precautions for using and maintaining Banner sensor products
Cleaner: Clean the surface of the Banner sensor with a special cleaner to remove dirt and dust. Do not use any acidic or alkaline cleaners to avoid damaging the sensor surface. It is recommended to use anhydrous alcohol or deionized water for cleaning.
Lube: Some Banner sensors require ...
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Banner Sensors - Introduction to the features and advantages of fiber optic sensors
High sensitivity
Lightweight and flexible, easy to install and buried
Electrical insulation and chemical stability. Optical fiber itself is a highly insulating and chemically stable substance, which is suitable for harsh environments such as high-voltage isolation and flammable and explosive in power systems and chemical systems
Good security ...
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Classification and introduction of Banner sensors
(1) Slot Banner sensor
Placing an optical transmitter and a receiver facing each other on either side of a slot is a fork photoelectric. The luminaire emits infrared or visible light, and the light receiver receives the light in an unobstructed condition. But when the detected object passes through the slot, the light is blocked ...
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Banner Sensor - Introduction to the advantages of fiber optic sensors
1. High precision, fast response speed, wide range of linear features, good repeatability of use, high signal-to-noise ratio of detection signal, due to the mass production of optical fiber, low price, can be widely used.
2. The optical fiber is made of dielectric material quartz, which transmits optical signals, so it is safe ...
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