News
News

06

2023

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01

New Year's Day | Happiness is a "yuan" that never ends; When troubles are all over, punish it to stand aside.

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【概要描述】Best wishes from Qiwei Electric Happy New Year's Day! Time flies, and it's the end of the year and the beginning of the year 2020 is an unusual year Nervous, flustered, moved, warm Fortunately, the bustling human fireworks market daily After a long separation, we will meet again And those who should be remembered for their heroism and dedication Moved and sighed that should be treasured Will cocoon in time and gradually become immortal and legendary It's like wine brewed with time Every drop is a sweet and moving story Welcome New Year's Day and go to the New Year Goodbye 2020, hello 2021 Four seasons, spring, summer, autumn and winter Wish you all the best in the new year!

Best wishes from Qiwei Electric
Happy New Year's Day!
Time flies, and it's the end of the year and the beginning of the year
2020 is an unusual year
Nervous, flustered, moved, warm
Fortunately, the bustling human fireworks market daily
After a long separation, we will meet again
And those who should be remembered for their heroism and dedication
Moved and sighed that should be treasured
Will cocoon in time and gradually become immortal and legendary
It's like wine brewed with time
Every drop is a sweet and moving story
Welcome New Year's Day and go to the New Year
Goodbye 2020, hello 2021
Four seasons, spring, summer, autumn and winter
Wish you all the best in the new year!

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Holiday notice
The New Year's Day holiday in 2021 is coming. All staff of Foshan Qiwei Electric Technology Co., Ltd. hereby send you the most sincere holiday greetings and best wishes!
Holiday time: January 1-2, 2021
Working time: January 3, 2021

For more products and solutions, please visit www.kiwell.cn or call us at 400-1722-868. dial 400-1172-868contact us。 

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Foshan Qiwei Electric Technology Co., Ltd. is a high-tech enterprise integrating sales, technical services, engineering and research and development. It is one of the few suppliers and system integrators in the domestic automation field that provide complete solutions for multi-brand intelligent manufacturing and digital chemical plants according to customer needs. With its strong strength and strong storage, Hong Kong companies have rich overseas channels and can bring high-quality products to customers. Guangdong Junying Automation Equipment Co., Ltd., a subsidiary of Siemens, is a first-level agent and has 10 years of experience in industrial control product sales. Based on years of industry experience, the company strives for change and progress, provides automation engineering technical services and complete solutions, and also provides intelligent manufacturing and digital factory solutions, realizing the "one-stop" service of industrial control automation.


BARTEC explosion-proof switch-Germany BARTEC limit type micro switch/travel switch

BARTEC explosion-proof switches are special-purpose switches developed by the renowned German company BARTEC, which was founded in 1975 in Baden-Württemberg.

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Comparison between optical fiber sensor and traditional sensor

At present, in the Chinese market, fiber Bragg grating (equipped with ASE broadband light source) and distributed sensor based on optical time-domain reflection are the most widely used optical fiber sensing technologies. This technology can basically meet the needs of the medium and low end general market and is well known by industry insiders. The single-frequency fiber laser with spectral linewidth as narrow as 2 kHz and the latest generation of optical sensing technology introduced now are completely different from the optical fiber sensing we now know. This new technical solution can fully meet the higher demand for ultra-long distance, ultra-high precision and ultra-high sensitivity in the high-end market, which cannot be completed by electric sensing and general optical fiber sensing. However, this technology is still in the stage of project approval and pre-research in China. Compared with traditional sensing technology, fiber-based sensors have the following major advantages: 1. Light weight, compact structure, easy to reuse in multiple ways; 2. Resistance to harsh environment, electromagnetic interference and chemical corrosion; 3. There is no need for electricity at the sensing point, and long-distance distributed sensing is possible; 4. Low cost mass production After optical fiber communication, optical fiber sensing has also ushered in an important development opportunity. It has extensive and huge application value in security, military, oil/gas, electricity and scientific research, especially in western developed countries. The optical principle of single-frequency fiber laser for optical sensing is optical frequency time-domain reflection.

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Structure principle and classification of optical fiber sensor

1. Structure principle of optical fiber sensor The traditional sensor based on electricity is a device that converts the measured state into measurable electrical signals. Its power supply, sensitive components, signal receiving and processing system and information transmission are all connected with metal wires. Optical fiber sensor is a device that converts the measured state into a measurable optical signal. It is composed of optical transmitter, sensing element (optical fiber or non-optical fiber), optical receiver, signal processing system and optical fiber. The light emitted by the optical transmitter is guided to the sensitive element through the source optical fiber. At this time, a certain property of the light is modulated by the measured, and the modulated light is coupled to the optical receiver through the receiving fiber, so that the optical signal is converted into an electrical signal, and finally the desired measured signal is obtained through signal processing. It can be seen that the optical fiber sensor is essentially different from the traditional sensor based on electricity in measuring principle. Traditional sensors are based on mechanical-electrical measurement, while optical fiber sensors are based on optical measurement. Light is a kind of electromagnetic wave, whose wavelength ranges from 1 mm in the far infrared to 10 nm in the far ultraviolet. Its physical and biochemical effects are mainly caused by the electric field. Therefore, when discussing the sensitive measurement of light, we must consider the vibration of the electric vector E of light, namely A - amplitude vector of electric field E; ω—— Vibration frequency of light wave; φ—— Optical phase; T - propagation time of light. It can be seen that as long as one of the parameters such as the intensity, polarization state (direction of vector A), frequency and phase of the light changes with the change of the measured state, or is modulated by the measured state, then the required measured information can be obtained by adjusting the intensity modulation, polarization modulation, frequency modulation or phase modulation of the light. 2. Classification of optical fiber sensors Note: MM multimode; SM single mode; PM polarization maintenance; a. B, c functional type, non-functional type, pickup type

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The exhibition of the first Fuji Electric Import Expo ended smoothly

The China International Import Expo is a major measure taken by the Chinese government to firmly support trade liberalization and economic globalization and actively open its market to the world. The exhibition covers seven major industries, including service trade, automobile, high intelligent high-end equipment, consumer electrical machinery and equipment. Fuji Electric Co., Ltd. also participated in the exhibition. With the theme of energy and environment business, in the 108 square meters, blue and white Fuji Electric Exhibition Hall, energy optimization and stabilization were carried out; Achieve stable operation and energy-saving effect of the plant; Environmental measurement of air pollution, etc., to the optimal operation of equipment; It also saves labor and people, and provides four displays of food safety and reassurance.

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琦威(香港)有限公司

Kiwell (Hongkong) Co., Ltd.

Add:  Workshop Unit No. A6, 8/F, Hoplite Industrial Centre, No. 3 & 5 Wang Tai Road, Kowloon Bay, Kowloon, Hongkong

Tel:852 3171 1488  

Fax:852 3111 6959

佛山市琦威电气技术有限公司

Kiwell (Foshan) Electric Technology Co., Ltd.

Add :  Floor 3,Block 5,No.23,Xinghua Road,

           Zhangcha Street,Foshan Clty,Guangdong Province

Tel :   0757-83276620    13827717320 

Fax :  0757-83992196

Mailbox: info@kiwell.cn

 

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