CN117452308A - Automatic calibration method for full-temperature power - Google Patents
Automatic calibration method for full-temperature power Download PDFInfo
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- CN117452308A CN117452308A CN202311764680.XA CN202311764680A CN117452308A CN 117452308 A CN117452308 A CN 117452308A CN 202311764680 A CN202311764680 A CN 202311764680A CN 117452308 A CN117452308 A CN 117452308A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 4
- 238000013500 data storage Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses an automatic calibration method of full-temperature power, which comprises the steps of setting calibration parameters and initializing by an upper computer; the upper computer is utilized to issue a frequency command and an attenuation command; the upper computer reads the current power of the power meter; the upper computer judges whether the power parameter meets the index requirement; if the power is not satisfied, the power is calibrated in a mode of increasing the attenuation according to the fact that the power is larger than a set value and decreasing the attenuation; if yes, the upper computer judges whether the power parameter is the power parameter of the cut-off frequency; if not, performing power calibration of the next frequency point; if yes, the current temperature power calibration is finished, and calibration data are written; the upper computer judges whether the full-temperature power calibration is completed or not, and if the full-temperature power calibration is completed, the calibration is finished; if not, the working environment temperature of the piece to be calibrated can be changed by means of the high-low temperature box; the next temperature calibration is performed. The invention effectively realizes automatic test, improves the working efficiency and greatly reduces the labor cost.
Description
Technical Field
The invention belongs to the technical field of power calibration, and particularly relates to an automatic calibration method of full-temperature power.
Background
The frequency source is a basic signal source of the electronic system, and in the modern electronic technology, the frequency source has become a core component of the electronic system and is widely applied to the fields of radar, communication, measurement and control, countermeasure, navigation and the like. With the development of modern electronic technology, the performance of electronic equipment is continuously improved, the functions are continuously increased, and simultaneously, higher requirements are also put on the performance of various aspects of frequency sources. The index of the frequency source mainly comprises: miniaturization, small stepping, high stability, ultra wide band, low phase noise, low stray, low power consumption, agile frequency, quick start, etc. If the power flatness requirement fluctuation of the broadband and small-step frequency source is small, the difficulty of manually calibrating the power flatness is high.
The existing calibration for the power flatness of the frequency source with wide frequency band and small step lacks a scheme for automatic calibration, and the manual calibration has low efficiency, cannot adapt to mass production and has high production cost.
Disclosure of Invention
The invention aims to provide an automatic calibration method for full-temperature power, which mainly solves the problems of low manual calibration efficiency, inadaptability to mass production and high production cost.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an automatic calibration method of full temperature power comprises the following steps:
s1, setting calibration parameters and initializing by an upper computer;
s2, the upper computer issues a frequency command and an attenuation command;
s3, the upper computer reads the current power of the power meter;
s4, judging whether the power parameter meets the requirement, and if not, entering S5; if yes, entering S6;
s5, if the power is larger than the set value, increasing attenuation; if the power is less than the set point, the attenuation is reduced; then S1 is carried out;
s6, judging whether the power parameter is the cut-off frequency, and if the power parameter is the power parameter of the cut-off frequency, entering S8; if the power parameter is not the power parameter of the cut-off frequency, proceeding to S7;
s7, starting power calibration of the next frequency point, repeating the steps S1 to S6 until the power parameter is the power parameter of the cut-off frequency, and entering S8;
s8, the upper computer judges whether the full-temperature power calibration is completed, and if the full-temperature power calibration is completed, the S12 is entered; if the temperature power calibration is not completed, entering S10;
s10, changing the working environment temperature of the piece to be calibrated by means of a high-low temperature box, and then entering S11;
s11, starting next temperature power calibration;
and S12, ending the power calibration.
Further, in the step S1, the calibration parameters set by the upper computer include a power flatness calibration parameter, a target power, an allowable error, a frequency range, a minimum attenuation accuracy, a maximum attenuation amount, a frequency step, a maximum temperature, a minimum temperature, and a temperature step.
Further, in the power calibration, the computer transmits a control signal to the upper computer control calibration clamp by using a USB-to-RS 232 cable, the calibration clamp controls the piece to be calibrated through a control line, the radio frequency output end of the piece to be calibrated is connected with the signal input end of the power meter, and the power meter and the computer are in network cable communication.
Further, in the attenuation control of the step S5, the current ambient temperature is identified and identified by using a temperature sensor, and reported to the controller, and the memory stores the power calibration value of each temperature segment; the controller controls data receiving, forwarding and data storage read-write operations and controls numerical control attenuation.
Compared with the prior art, the invention has the following beneficial effects:
the method of the invention does not need manual work, can complete automatic calibration of full-temperature power under the condition of no testing personnel, is especially applied to the conditions that the power flatness fluctuation required by a broadband and fine stepping frequency source is small, and the power flatness index requirement can be met only by power calibration, the testing personnel can build a testing table, and complete full-temperature power calibration of the piece to be calibrated under the condition of no personnel at night, thereby maximizing time utilization, improving working efficiency and reducing labor cost.
Drawings
FIG. 1 is a schematic diagram of a test architecture according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a control structure of a controller according to an embodiment of the present invention.
FIG. 3 is a schematic flow chart of the method of the present invention.
Detailed Description
The invention will be further illustrated by the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1, a computer sets a power flatness calibration parameter, a target power, an allowable error, a frequency range, a minimum attenuation precision, a maximum attenuation amount, a frequency step, a highest temperature, a lowest temperature and a temperature step by using an upper computer; the computer transmits a control signal to the upper computer control calibration clamp by using a USB-RS 232 cable, the calibration clamp controls the piece to be calibrated through a control line, the radio frequency output end of the piece to be calibrated is connected with the signal input end of the power meter, and the power meter and the computer are in network cable communication.
As shown in fig. 2, the temperature sensor recognizes and identifies the current ambient temperature and reports it to the controller (FPGA/ARM); the memory stores the power calibration value of each temperature section; the controller (FPGA/ARM) controls the data receiving, forwarding and data storage read-write operation and the numerical control attenuation.
Based on this, as shown in fig. 3, the automatic calibration method of full-temperature power provided by the invention is as follows: the upper computer sets calibration parameters and initializes the calibration parameters; then the upper computer issues a frequency command and an attenuation command; the upper computer reads the current power of the power meter; the upper computer judges whether the power parameter meets the index requirement; if the technical index requirements are not met, the power is calibrated in a mode of increasing attenuation according to the fact that the power is larger than a set value and smaller than the set value and reducing attenuation; if the power parameter of the frequency point meets the technical index requirement, the upper computer judges whether the power parameter is the power parameter of the cut-off frequency; if the power parameter is not the power parameter of the cut-off frequency, performing power calibration of the next frequency point; if the power parameter is the power parameter of the cut-off frequency, finishing the current temperature power calibration, and writing calibration data; the upper computer judges whether the full-temperature power calibration is completed or not, and if the full-temperature power calibration is completed, the calibration is finished; if the temperature power calibration is not completed, the working environment temperature of the piece to be calibrated can be changed by means of the high-low temperature box; the next temperature calibration is performed. The automatic calibration method of the full-temperature power effectively realizes automatic test, improves the working efficiency and greatly reduces the labor cost.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or color changes made in the main design concept and spirit of the present invention are still consistent with the present invention, and all the technical problems to be solved are included in the scope of the present invention.
Claims (4)
1. An automatic calibration method for full-temperature power is characterized by comprising the following steps:
s1, setting calibration parameters and initializing by an upper computer;
s2, the upper computer issues a frequency command and an attenuation command;
s3, the upper computer reads the current power of the power meter;
s4, judging whether the power parameter meets the requirement, and if not, entering S5; if yes, entering S6;
s5, if the power is larger than the set value, increasing attenuation; if the power is less than the set point, the attenuation is reduced; then S1 is carried out;
s6, judging whether the power parameter is the cut-off frequency, and if the power parameter is the power parameter of the cut-off frequency, entering S8; if the power parameter is not the power parameter of the cut-off frequency, proceeding to S7;
s7, starting power calibration of the next frequency point, repeating the steps S1 to S6 until the power parameter is the power parameter of the cut-off frequency, and entering S8;
s8, the upper computer judges whether the full-temperature power calibration is completed, and if the full-temperature power calibration is completed, the S12 is entered; if the temperature power calibration is not completed, entering S10;
s10, changing the working environment temperature of the piece to be calibrated by means of a high-low temperature box, and then entering S11;
s11, starting next temperature power calibration;
and S12, ending the power calibration.
2. The automatic calibration method of full-temperature power according to claim 1, wherein in the step S1, the calibration parameters set by the upper computer include a power flatness calibration parameter, a target power, an allowable error, a frequency range, a minimum attenuation accuracy, a maximum attenuation amount, a frequency step, a maximum temperature, a minimum temperature, and a temperature step.
3. The automatic calibration method of full-temperature power according to claim 2, wherein in the power calibration, a computer transmits a control signal to an upper computer control calibration clamp by using a USB-to-RS 232 cable, the calibration clamp controls a piece to be calibrated through a control wire, a radio frequency output end of the piece to be calibrated is connected with a signal input end of a power meter, and the power meter and the computer are in network cable communication.
4. The automatic calibration method of full-temperature power according to claim 3, wherein in the attenuation control of step S5, a temperature sensor is used to identify the current ambient temperature and report the current ambient temperature to the controller, and the memory stores the power calibration values of each temperature segment; the controller controls data receiving, forwarding and data storage read-write operations and controls numerical control attenuation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311764680.XA CN117452308A (en) | 2023-12-21 | 2023-12-21 | Automatic calibration method for full-temperature power |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311764680.XA CN117452308A (en) | 2023-12-21 | 2023-12-21 | Automatic calibration method for full-temperature power |
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| CN113253190A (en) * | 2021-04-22 | 2021-08-13 | 中国电子科技集团公司第二十九研究所 | Method for correcting full-band amplitude of radio frequency channel of distributed system |
| CN113504742A (en) * | 2021-06-15 | 2021-10-15 | 电子科技大学 | Double-fed automatic level control system based on FPGA |
| CN113872543A (en) * | 2021-09-30 | 2021-12-31 | 中国船舶重工集团公司第七二三研究所 | Large dynamic power control unit of airborne broadband linear power amplifier |
| CN115421087A (en) * | 2022-07-25 | 2022-12-02 | 中国电子科技集团公司第二十九研究所 | Power self-adaptive closed-loop calibration method and system based on broadband frequency source |
| CN117200876A (en) * | 2023-08-30 | 2023-12-08 | 中国电子科技集团公司第五十四研究所 | Power automatic calibration method for frequency hopping dispersion communication |
-
2023
- 2023-12-21 CN CN202311764680.XA patent/CN117452308A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635049A (en) * | 2013-11-08 | 2015-05-20 | 苏州普源精电科技有限公司 | Spectrum analyzer with calibration function |
| CN105162459A (en) * | 2015-09-08 | 2015-12-16 | 四川九洲电器集团有限责任公司 | Power calibration method and system of DDS (Direct Digital Synthesizer) broadband signal source |
| CN106918797A (en) * | 2017-03-29 | 2017-07-04 | 国家电网公司 | A kind of digitalized electrical energy meter calibrating and source tracing method based on standard digital power source |
| CN109714118A (en) * | 2019-02-13 | 2019-05-03 | 南京迅测科技有限公司 | The system and method for calibration of power processing are realized for the outfield 5G panoramic receiver |
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| CN113504742A (en) * | 2021-06-15 | 2021-10-15 | 电子科技大学 | Double-fed automatic level control system based on FPGA |
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