Ultraviolet flame sensor and manufacturing method thereof

A flame sensor and ultraviolet technology, which is applied in the field of flame detectors, can solve the problems that the rigidity and impact resistance of the detector need to be improved, it is difficult to ensure the distance and parallelism between the cathode and the anode, and the reliability and consistency of the sensor are not good. Guaranteed electrode distance and sensitivity, small and beautiful structure, little effect on working time and environmental interference

Inactive Publication Date: 2008-08-27
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

It adopts a glass structure, which is mainly composed of transparent purple glass balls, linear or sheet-shaped photocathode and anode. performance needs to be improved
The existing ultraviolet photosensitive tubes are all made of glass spherical shells in a high-temperature environment by vacuuming, which is complicated...

Method used

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  • Ultraviolet flame sensor and manufacturing method thereof
  • Ultraviolet flame sensor and manufacturing method thereof
  • Ultraviolet flame sensor and manufacturing method thereof

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Embodiment Construction

[0036] The ultraviolet flame sensor of the technical solution will be further described below in conjunction with the accompanying drawings.

[0037] refer to figure 1 and figure 2 , The invention is a novel ultraviolet flame sensor with compact structure, good impact resistance and high rigidity. The electrode anode 2 is plated on the lower layer of the transparent purple glass sheet 1, the photocathode 4 is plated on the upper surface of the cathode substrate glass sheet 3, and the upper and lower glass sheets and the glass ring 5 form a glass cavity. The glass cavity is bonded on the plastic base 7 , and the electrode leads are connected to the aeration circuit wires 10 on the plastic base 7 and connected to each pin 8 . The plastic-encapsulated base 7, the glass cavity and the plastic shell 9 are hermetically bonded to form an integrated compact detector. Therefore, the structure is relatively solid, the rigidity and impact resistance of the detector are improved, and ...

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Abstract

An ultraviolet flame sensor and a manufacturing method thereof relate to a solar blind type ultraviolet flame sensor. The invention provides the ultraviolet flame sensor with simple structure, small size, high stability, high strength and high linearity and sensitivity, and the sensor manufacturing method with good versatility, simple technique and low cost. The invention is characterized in that: the ultraviolet flame sensor comprises a uviol piece, a meshed anode which is arranged on the uviol piece, a cathode substrate glass piece, a photocathode which is arranged on the cathode substrate glass piece, a glass ring which is arranged between the cathode and the anode, a vacuum orifice which is arranged on the glass ring, a plastic packaged base which is arranged under the cathode substrate glass piece, a cathode and an anode lead which are adhered to the plastic packaged base and are respectively connected with the cathode and the anode, and a plastic casing which is arranged around the plastic packaged base, the glass ring and the glass piece.

Description

technical field [0001] The invention belongs to the field of flame detectors, in particular to an ultraviolet flame sensor and a preparation method thereof. Background technique [0002] Ultraviolet detection technology is another important photoelectric detection technology developed after infrared and laser technology. It has broad application prospects in medicine, biology, military and other fields, and is of great significance to a country's national defense and national economic construction. , can be widely used in the exhaust flame detection of aircraft and rockets, missile detection and guidance, ultraviolet security communication technology, fire alarm and so on. [0003] The traditional ultraviolet flame sensor uses an ultraviolet photocell as a detection device, which can detect the 1800-2600 in the flame spectrum before the flame has formed an obvious flame. A device that emits an alarm signal through ultraviolet rays. Due to the limitation of the technical l...

Claims

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Application Information

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IPC IPC(8): G01J1/02G01J3/28
Inventor 董政黄大贵张列平张德银黄逸平
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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