What are the advantages of fiber optic sensors compared to conventional sensors-INNO

سنسورهای فیبر نوری are no stranger to people’s lives nowadays, as they can be applied in many aspects of people’s lives, such as temperature and humidity measurement, اندازه گیری فشار, vibration measurement, و غیره. Traditional sensor technology may not be able to adapt to so many measurement needs.

(1) حساسیت بالا. The response speed of fiber optic sensors is very fast, and the various physical values that can be measured are also very small.

(2) ضد تداخل الکترومغناطیسی, electrical insulation, مقاومت در برابر خوردگی, و ایمنی ذاتی.

Due to the fact that fiber optic sensors use light waves to transmit information, and fiber optic is an electrically insulated, corrosion-resistant transmission medium that is safe and reliable, it can be conveniently and effectively used in various large electromechanical, پتروشیمی, mining and other harsh environments with strong electromagnetic interference and flammable and explosive properties.

(3) Fast measurement speed. نور سریع ترین سرعت انتشار را دارد و می تواند اطلاعات دو بعدی را منتقل کند, آن را برای اندازه گیری های با سرعت بالا مناسب می کند. تجزیه و تحلیل رادار و سایر سیگنال ها به سرعت تشخیص بسیار بالایی نیاز دارد, که دستیابی به آن با استفاده از روش های الکترونیکی دشوار است. تجزیه و تحلیل طیفی با سرعت بالا با استفاده از پدیده پراش نور می تواند این مشکل را حل کند.

(4) ظرفیت اطلاعاتی زیاد. سیگنال اندازه گیری شده توسط امواج نور منتقل می شود, و فرکانس نور بسیار زیاد است, که می تواند یک باند فرکانسی وسیع را در خود جای دهد. همان فیبر نوری می تواند چندین سیگنال را منتقل کند.

(5) مناسب برای محیط های خشن. فیبر نوری یک ماده دی الکتریک است که در برابر ولتاژ بالا مقاوم است, خوردگی, و تداخل الکترومغناطیسی. می توان از آن در محیط های خشن استفاده کرد که سنسورهای دیگر برای آن مناسب نیستند.

علاوه بر این, fiber optic sensors also have the characteristics of light weight, اندازه کوچک, انعطاف پذیری, wide range of measurement objects, good reusability, و کم هزینه. The application of fiber optic sensors is precisely because fiber optic sensors have so many advantages, making their application fields very extensive, involving many fields such as petrochemicals, برق, دارو, مهندسی عمران, و غیره.

FJINNO’s fiber optic sensors are fully capable of meeting the higher demands of the high-end market for ultra long distance, ultra high precision, and ultra high sensitivity that cannot be achieved by electrical sensing and general fiber optic sensing.

Compared with traditional sensing technologies, fiber-optic sensors have the following major advantages:

1. Lightweight, compact structure, and easy to reuse multiple times;

2. Resistance to harsh environments, تداخل الکترومغناطیسی, و خوردگی شیمیایی;

3. At the sensing point, there is no need for electricity and long-distance distributed sensing is possible;

4. Can be mass-produced at low cost

After fiber optic communication, fiber optic sensing has also ushered in important development opportunities. It has broad and enormous application value in security, نظامی, oil/gas, برق, and scientific research, and its future is limitless.

The transmission fiber for اندازه گیری دمای فیبر نوری is generally quartz fiber, which has the characteristics of corrosion resistance and long service life, and can usually serve for 30 سال. Taking into account the cost of the sensor itself and future maintenance costs, the use of fiber optic sensors can greatly reduce the final operating cost of the entire project.

Compared with electronic systems, the advantages of fiber optic systems are mainly reflected in the high safety, ثبات خوب, and long lifespan of sensors. The main application areas are power systems (زیرزمینی, overhead lines), fire protection systems (traffic tunnels), پل ها, پتروشیمی ها (خطوط لوله, stations/valve chambers), حفظ آب, و غیره. در حال حاضر, the most popular technology is فیبر نوری توزیع شده تشخیص لرزش, which is applied in various security fields. In some niche markets, technologies such as active/passive infrared targeting, هدف گیری لیزری, leaky cables, and vibrating cables have gradually been replaced. Fiber optic sensors have a simple structure, دقت بالا, حساسیت بالا, and are easy to implement in many environments, making them currently very popular.

Disadvantages of non-contact temperature sensors: 1. They are easily affected by environmental factors, such as thermal radiation. 2. They are not easy to achieve long-term continuous measurement of targets.

Advantages of contact temperature sensors: stable measurement and high accuracy; The disadvantage of non-contact temperature sensors is, in turn, the disadvantage of contact sensors.

Thermal infrared sensor: The advantage is that it can be operated at room temperature, and wavelength dependence does not exist, making it inexpensive; The disadvantage is low sensitivity and slow response.

Quantum type infrared sensor: Its advantages are high sensitivity and fast response; The disadvantages are that it must be cooled (liquid nitrogen), wavelength dependent, and expensive.

Ultrasonic sensor: Its advantages include high frequency, short wavelength, small diffraction phenomenon, especially good directionality and the ability to become rays and propagate in a directional manner; The disadvantage is the presence of triangulation errors, which are easily affected by noise.