CN212207504U

CN212207504U - Automatic frequency measuring equipment for magnetron tube core

Info

Publication number: CN212207504U
Application number: CN202020341299.8U
Authority: CN
Inventors: 郭志贵; 邓宏彬; 罗浩贤; 卢锦平
Original assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Current assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-12-22
Anticipated expiration: 2030-03-17

Abstract

An automatic frequency measurement device of a magnetron tube core comprises a tube core to be measured, a test system and a display system, wherein the test system comprises an active frequency measurement source module, a dual piezoelectric conversion and optical coupling isolation module and a frequency measurement control module; the active frequency measurement source module, the dual piezoelectric conversion and optical coupling isolation module, the frequency measurement control module and the display system are electrically connected with each other. The utility model discloses an above-mentioned structure's improvement, can be to the equipment that the tube core was selected in the frequency range who prescribes a limit to quick, accurate, reliable judgement and screening between the yields that realize the tube core frequency and the defective products, make the tube core frequency can reach digital, automatic detection effect, solve the problem that the accuracy nature in the operation processes such as artifical oscilloscope frequency measurement reads is limited effectively, the reliability and stable not enough, and measurement of efficiency is low, and the practicality is strong.

Description

Automatic frequency measuring equipment for magnetron tube core

Technical Field

The utility model relates to an automatic frequency measurement equipment of magnetron tube core.

Background

The magnetron is a vacuum electron tube capable of generating microwave energy by electric energy, and is widely applied to scenes such as military radars, microwave communication, life or industrial heating and the like. In the operation process of the magnetron, due to the use characteristics of the magnetron, or due to national or industrial frequency standards (such as the ISM frequency band), etc., there is a very definite limited range for the frequency of the magnetron product, and the main component determining the frequency is the tube core of the magnetron. Most of the tube core frequencies in the industry at present adopt a traditional manual oscilloscope test method, and the method is carried out manually because the test is carried out manually, so that the stability is poor, the test effect is different, mistakes are easy to occur, meanwhile, the test efficiency is low, the work labor amount is large, the production cost is high, physical and mental injuries are easy to cause when workers work for a long time, the problem of personnel safety needs to be considered by manufacturers, meanwhile, few workers are engaged in the test work, the recruitment of manufacturers is difficult, the personnel cost is gradually increased, and the modern production and processing requirements cannot be met. Therefore, further improvements are necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure is reasonable, the performance is excellent, convenient to use, safe and reliable, and the test is digital, automatic and efficient magnetron tube core automatic frequency measurement equipment to overcome the weak point among the prior art.

The automatic frequency measurement equipment for the magnetron tube core designed according to the purpose comprises a tube core to be measured, a test system and a display system, and is characterized in that: the test system comprises an active frequency measurement source module, a dual piezoelectric conversion and optical coupling isolation module and a frequency measurement control module; the active frequency measurement source module, the dual piezoelectric conversion and optical coupling isolation module, the frequency measurement control module and the display system are electrically connected with each other.

The active frequency measurement source module comprises a waveguide and a microwave frequency scanner; the tube core to be tested is placed on the waveguide, and the microwave frequency scanner is electrically connected with the waveguide, the display system and the dual piezoelectric conversion and optical coupling isolation module respectively.

The signal output end of the waveguide is electrically connected with the signal input end of the microwave frequency sweep instrument, the signal output end of the microwave frequency sweep instrument is respectively electrically connected with the signal input ends of the display system and the dual piezoelectric conversion and optical coupling isolation module, the signal output end of the dual piezoelectric conversion and optical coupling isolation module is electrically connected with the signal input end of the frequency measurement control module, and the signal output end of the frequency measurement control module is electrically connected with the signal input end of the display system.

The waveguide is arranged below the microwave frequency sweep instrument, the frequency measurement control module is arranged on the side portion of the microwave frequency sweep instrument, the dual piezoelectric conversion and optical coupling isolation module is arranged below the frequency measurement control module, and the display system is arranged in front of the frequency measurement control module and/or the dual piezoelectric conversion and optical coupling isolation module.

The frequency measurement control module comprises a single chip microcomputer, and an external trigger receiver, an Adc sampler, a frequency converter, a communication protocol stack, a display driver and a storage which are respectively electrically connected with the single chip microcomputer.

The equipment also comprises a PLC and a radio frequency circuit; the single chip microcomputer is electrically connected with the dual piezoelectric conversion and optical coupling isolation module through an external trigger receiver and/or an Adc sampler and/or a frequency converter, the single chip microcomputer is electrically connected with the PLC through a communication protocol stack, the single chip microcomputer is electrically connected with a display system through a display driver, and the single chip microcomputer is electrically connected with the radio frequency circuit through a storage.

The utility model discloses an improvement of above-mentioned structure, utilize initiative frequency measurement source module, dual piezoelectric conversion and opto-coupler isolation module, frequency measurement control module and display system's mutual electricity is connected, can make up one can carry out the equipment of selecting to the tube core in the frequency range who prescribes a limit to, in order to realize the yields of tube core frequency and the fast between the defective products, it is accurate, reliable differentiation and screening, make the tube core frequency can reach the digitization, automatic detection effect, it is limited to solve the accuracy nature in the operation processes such as manual oscilloscope frequency measurement reading effectively, reliability and stability are not enough, and the problem that measurement of efficiency is low.

Compared with the prior art, the method has the following advantages:

1. through digital frequency detection, the accuracy and the reliability of frequency detection can be improved, and the reading error of the traditional manual oscilloscope is reduced.

2. The stability of the tube core evaluation result can be improved by automatically measuring and judging the frequency through the frequency measurement control module 4.

3. Through automatic frequency reading, the workload of staff can be reduced, and the detection efficiency of the tube core frequency is improved.

4. And diversified results are output, so that the accurate distinguishing of good products/defective products and the accurate detection and acquisition of quality data in the aspect of magnetron tube core frequency can be ensured.

5. The hardware cost of a single frequency measurement device can be reduced.

In a comprehensive aspect, the device has the characteristics of simple and reasonable structure, excellent performance, convenience in use, safety, reliability, full-automatic test, high efficiency and the like, and is high in practicability.

Drawings

Fig. 1 and 2 are schematic views of an assembly structure according to a first embodiment of the present invention.

Fig. 3 is a schematic circuit diagram of a first embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-3, the automatic frequency measurement device for the magnetron tube core comprises a tube core 1 to be measured, a test system and a display system 2, wherein the test system comprises an active frequency measurement source module, a dual piezoelectric conversion and optical coupling isolation module 3 and a frequency measurement control module 4; the tube core 1 to be tested is placed on the active frequency measurement source module, and the active frequency measurement source module, the dual piezoelectric conversion and optical coupling isolation module 3, the frequency measurement control module 4 and the display system 2 are electrically connected with each other.

The active frequency measurement source module comprises a waveguide 5 and a microwave frequency sweep instrument 6; the tube core 1 to be tested is placed on the waveguide 5, and the microwave frequency sweep instrument 6 is electrically connected with the waveguide 5, the display system 2 and the dual piezoelectric conversion and optical coupling isolation module 3 respectively.

The signal output end of the waveguide 5 is electrically connected with the signal input end of the microwave frequency sweep instrument 6, the signal output end of the microwave frequency sweep instrument 6 is electrically connected with the signal input ends of the display system 2 and the dual piezoelectric conversion and optical coupling isolation module 3 respectively, the signal output end of the dual piezoelectric conversion and optical coupling isolation module 3 is electrically connected with the signal input end of the frequency measurement control module 4, and the signal output end of the frequency measurement control module 4 is electrically connected with the signal input end of the display system 2.

The waveguide 5 is arranged below the microwave frequency sweep instrument 6, the frequency measurement control module 4 is arranged on the side portion of the microwave frequency sweep instrument 6, the dual piezoelectric conversion and optical coupling isolation module 3 is arranged below the frequency measurement control module 4, and the display system 2 is arranged in front of the frequency measurement control module 4 and/or the dual piezoelectric conversion and optical coupling isolation module 3.

The frequency measurement control module 4 comprises a single chip microcomputer, and an external trigger receiver, an Adc sampler, a frequency converter, a communication protocol stack, a display driver and a storage which are respectively electrically connected with the single chip microcomputer.

The equipment also comprises a PLC and a radio frequency circuit; the single chip microcomputer is electrically connected with the dual piezoelectric conversion and optical coupling isolation module 3 through an external trigger receiver and/or an Adc sampler and/or a frequency converter, the single chip microcomputer is electrically connected with the PLC through a communication protocol stack, the single chip microcomputer is electrically connected with the display system 2 through a display driver, and the single chip microcomputer is electrically connected with the radio frequency circuit through a storage.

When the frequency measurement device works, a tube core 1 to be measured is placed on a waveguide 5 and is subjected to frequency source scanning through a microwave frequency scanner 6, corresponding frequency scanning amplitude signals are output at the same time, and then the signals are led into a frequency measurement control module 4 through a dual piezoelectric conversion and optical coupling isolation module 3.

Due to the fact that the waveguide 5 and the microwave frequency scanner 6 are matched to actively scan the frequency source of the tube core 1 to be measured, the dual piezoelectric conversion and optical coupling isolation module 3 can introduce a trigger mechanism to scanning signals in the frequency source through measures such as conversion and isolation, data conversion and algorithm processing are conducted through the single-chip-based frequency measurement control module 4, and therefore frequency values of the tube core are read and judged. The frequency measurement control module 4 can also be provided with functions of storage, multi-type communication, display driving and the like, and the final frequency measurement number and the judgment result can be stored, output and correspondingly displayed.

The drawings are for illustrative purposes only and are presented in the form of illustrations only, not illustrations as physical or logical, and should not be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Moreover, like or similar reference numerals in the drawings of the embodiments of the present invention correspond to like or similar parts; in the description of the present invention, it should be understood that, if there are any terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "longitudinal", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is for convenience and simplicity, and it is not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are used for illustrative purposes only and are not to be construed as limiting the present patent.

Claims

1. The utility model provides a magnetron tube core automatic frequency measurement equipment, includes the tube core (1) that awaits measuring, test system and display system (2), its characterized in that: the test system comprises an active frequency measurement source module, a dual piezoelectric conversion and optical coupling isolation module (3) and a frequency measurement control module (4); the active frequency measurement source module, the dual piezoelectric conversion and optical coupling isolation module (3), the frequency measurement control module (4) and the display system (2) are electrically connected with each other.

2. The magnetron tube core automatic frequency measurement device of claim 1, wherein: the active frequency measurement source module comprises a waveguide (5) and a microwave frequency scanner (6); the tube core (1) to be tested is placed on the waveguide (5), and the microwave frequency sweep instrument (6) is electrically connected with the waveguide (5), the display system (2) and the dual piezoelectric conversion and optical coupling isolation module (3) respectively.

3. The magnetron tube core automatic frequency measurement device of claim 2, wherein: the signal output end of the waveguide (5) is electrically connected with the signal input end of the microwave frequency sweep instrument (6), the signal output end of the microwave frequency sweep instrument (6) is electrically connected with the signal input ends of the display system (2) and the dual piezoelectric conversion and optical coupling isolation module (3) respectively, the signal output end of the dual piezoelectric conversion and optical coupling isolation module (3) is electrically connected with the signal input end of the frequency measurement control module (4), and the signal output end of the frequency measurement control module (4) is electrically connected with the signal input end of the display system (2).

4. The magnetron tube core automatic frequency measurement device of claim 3, wherein: the microwave frequency measurement device is characterized in that the waveguide (5) is arranged below the microwave frequency scanner (6), the frequency measurement control module (4) is arranged on the side of the microwave frequency scanner (6), the dual piezoelectric conversion and optical coupling isolation module (3) is arranged below the frequency measurement control module (4), and the display system (2) is arranged in front of the frequency measurement control module (4) and/or the dual piezoelectric conversion and optical coupling isolation module (3).

5. An automatic magnetron tube core frequency measuring device according to any of claims 1 to 4 wherein: the frequency measurement control module (4) comprises a single chip microcomputer, and an external trigger receiver, an Adc sampler, a frequency converter, a communication protocol stack, a display driver and a storage which are respectively electrically connected with the single chip microcomputer.

6. The magnetron tube core automatic frequency measurement device of claim 5, wherein: the system also comprises a PLC and a radio frequency circuit; the single chip microcomputer is electrically connected with the dual piezoelectric conversion and optical coupling isolation module (3) through an external trigger receiver and/or an Adc sampler and/or a frequency converter, the single chip microcomputer is electrically connected with the PLC through a communication protocol stack, the single chip microcomputer is electrically connected with the display system (2) through a display driver, and the single chip microcomputer is electrically connected with the radio frequency circuit through a storage.