Online magnetron fault detecting method

A detection method and magnetron technology, applied in the detection field, can solve problems such as low accuracy, low precision, and increased cost, and achieve the effects of not being easy to misjudgment, high detection accuracy, and low cost

Inactive Publication Date: 2014-10-08
QINGDAO DONGFANG RECYCLING ENERGY +1
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Problems solved by technology

The above-mentioned fault judgment method is relatively simple, and only judges whether the magnetron is faulty by the change of one or two physical quantities, and the accuracy is low
In addition, the misjudgment of the magnetron failure will also cause two problems. One is that the replaced magnetron is returned to the factory for repair or directly scrapped. Damage to the newly replaced magnetron on the unit
[0004] It can be seen that, in the prior art, the magnetron fault detection method has low accuracy and will also lead to an increase in cost

Method used

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  • Online magnetron fault detecting method

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Embodiment Construction

[0016] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] figure 1 It is a flow chart of the magnetron fault online detection method of the present invention. Such as figure 1 As shown, the magnetron fault online detection method described in the present invention, for the magnetron of 1 kilowatt output power, it comprises the following steps:

[0018] Step 1. Determine the diode anode current I in the device containing the magnetron b Whether meet 300mA≤I b ≤340mA: If satisfied, return to step 1; if not satisfied, judge the diode anode current I again b Whether meet 300mA≤I b ≤340mA: If it is satisfied, return to step 1; if it is still not satisfied, start the process threshold analysis mechanism, and perform steps 2, 3, and 4 at the same time.

[0019] Step 2, when I b When >340m...

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Abstract

The invention provides an online magnetron fault detecting method comprising the steps of acquiring changes of physical quantities like diode anode current, diode anode voltage, filament current and mains current of a piece of magnetron-containing equipment, and comprehensively judging the specific reasons for a magnetron fault, including magnetron leakage, power supply fault, filament breakage, filament emission capability fault, filament aging or magnet steel aging. The online magnetron fault detecting method of the invention has the following characteristics: the detection accuracy is high, the cost is low, misjudgment is not easily caused, and waste of magnetrons and human resources is not caused. The online magnetron fault detecting method can be widely applied to the field of microwave.

Description

technical field [0001] The invention relates to detection technology, in particular to an online fault detection method of a magnetron. Background technique [0002] At present, magnetrons have been widely used in many fields; moreover, for high-power magnetrons composed of small-power magnetrons connected in parallel, they are prone to aging and appear Fault. In order to ensure the effective operation of the magnetron equipment, the staff must be able to find and eliminate the faults of the magnetron in a timely and accurate manner. [0003] In practical applications, there are mainly three methods for online fault detection of magnetrons: the first method is for fault judgment only by detecting the anode current; the second method is for fault judgment by simultaneously detecting the anode current and anode negative high voltage; the third method is by Detect the output power of the primary side of the transformer inside the magnetron equipment for fault judgment. The a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/25
Inventor 袁仲雪陈海军安健逞姚永李玉峰
Owner QINGDAO DONGFANG RECYCLING ENERGY
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