Optical Communications Manufacturers -CPbay.com

Can also be called to handle led light bulbs, is a model of a double design. Handle bulb first allows to recognize a "child gate" in the dark, but also in emergency situations to provide you with lighting, because it is the power supply is built-in. Designer Jeong-Sun Park is a deep, especially interested in the butterfly effect and design of this section bulb, the butterfly effect is so profound principle Men do not understand. But it can change your life bit by bit, including the concept of using the handle, your friends, and every time your home could not help but want to touch, and he will talk about his friends this matter, his friends want to look at, I think this is the so-called butterfly effect.


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from:http://cpbay.chikablog.ir/light-bulbs-door-handles/

The solar rechargeable LED lamp is very simple to use design of the led light manufacturer cylindrical shape, simple and practical at the bottom of the solar cell, the inteal LED energy-saving lamps. Backwards placed in the sun needs to be charged on the windows automatically absorb solar energy and charge during the day, night out as a temporary lighting, LED lighting of the family to understand intimate Dynamo function, when no electric lights, soon extinguished, temporary emergency with a hand shake but also bright for some time.


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from:http://www.ledb2bglobal.biz/2012/07/solar-charging-led-light/

1 the main features of gas sensor
1.1 Stability
Stability refers to the stability of the basic response of the sensors in the entire time, depending on the zero drift and range drift.
Zero drift refers to changes in the absence of the target gas, the sensor output response time.
Range drift sensors placed consecutively in the target Gas Sensor in the output response to changes in the performance of the sensor output signal during working hours reduced.
Ideally, a sensor under continuous working conditions in each of zero drift is less than 10%
1.2 Sensitivity
Sensitivity refers to the ratio of the variation of sensor output and the measured input change is mainly dependent on the technology used in the structure of the sensor. Most of the gas sensor design principles of Biochemistry, electrochemistry, physics and optics. The first thing to consider is a sensitive technique, it is the target gas valve limit (TLV-thresh-old limit value) or lower explosive limit (LEL-lower explosive limit), the percentage of detection have sufficient sensitivity
1.3 Selective
The selectivity is also known as cross-sensitivity. This response is equivalent to a certain concentration of target gas generated by the sensor response can be determined by measuring the sensor response generated by the interference of the concentration of a particular gas. This feature is very important in tracking a variety of gas applications, will reduce the measurement of cross-sensitivity, repeatability and reliability, the ideal Sensor should have high sensitivity and high selectivity
1.4 corrosion resistance
Corrosion resistance when the sensor is exposed to the high volume fraction of the target gas, the ability of the large number of leaks of the gas, the probe should be able to withstand the expected gas volume fraction of 10 to 20 times retu to normal operating conditions, the sensor manufacturer drift and zero point correction due may be small.
The basic characteristics of the gas sensor sensitivity, selectivity and stability, mainly through the choice of materials to identify and select appropriate materials and develop new materials, so that the sensitive nature of the gas sensor optimal.

from :http://cpbay.informe.com/blog/2012/06/27/characteristics-of-gas-sensor/