CN106569022A - Low-power-consumption hand-held microwave power meter - Google Patents
Low-power-consumption hand-held microwave power meter Download PDFInfo
- Publication number
- CN106569022A CN106569022A CN201611035792.1A CN201611035792A CN106569022A CN 106569022 A CN106569022 A CN 106569022A CN 201611035792 A CN201611035792 A CN 201611035792A CN 106569022 A CN106569022 A CN 106569022A
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- CN
- China
- Prior art keywords
- dsp
- microwave power
- adc
- power meter
- power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
Abstract
The invention provides a low-power-consumption hand-held microwave power meter. The power meter comprises a microwave power probe and a host. The microwave power probe is connected to the host through a multi-core cable so as to commonly realize a power measurement function. The host comprises the following unit modules of a simulation channel unit and an ADC. The simulation channel unit carries out amplification and filtering processing on a voltage signal of probe data and sends the signal to the ADC so as to carry out A/D conversion. Converted ADC data is sent to an EPLD. Serial-parallel conversion and primary treatment are performed in an internal portion of the EPLD, and an effective ADC is written into a register of the internal portion of the EPLD. An interrupted mode is used to inform a DSP to read effective ADC data. Compared to an existing desk-type microwave power meter, the microwave power meter of the invention has advantages that the size is small; weight is light; the power meter is convenient to carry and is convenient to be used in a place with a position offset and a narrow space; and the microwave power meter is equipped with a cell which is used for providing power so that the microwave power meter can be conveniently used at a place without an alternating current power supply.
Description
Technical field
The present invention relates to technical field of measurement and test, more particularly to a kind of low-power consumption hand-hold microwave power meter.
Background technology
Microwave power meter is universal tester, can be widely applied to the electricity such as radar, electronic countermeasure, communication, guidance, navigation
Test of the sub- change system to its microwave signal transmission power.
Existing technical scheme is desk-top microwave power meter scheme, and the index that desk-top power meter is realized is：
(1) power supply mode：220V Alternating Current Power Supplies, power consumption：About 30W；
(2) weight：About 5kg；
(3) volume：235mm×105mm×375mm；
(4) frequency measurement scope：9kHz～40GHz；
(5) power measurement scope：- 60dBm～+20dBm.
Due to equipment under test much be located at field, first-class remote, narrow space the position of car and boat, desk-top power meter due to
Volume is big, weight is heavy, need 220V Alternating Current Power Supplies, therefore, desk-top power meter can not meet under many circumstances power scene
Testing requirement.
The content of the invention
To solve above-mentioned deficiency of the prior art, the present invention proposes a kind of low-power consumption hand-hold microwave power meter.
The technical scheme is that what is be achieved in that：
A kind of low-power consumption hand-hold microwave power meter, including：Microwave power is popped one's head in and main frame；Microwave power probe is by more
Core cable is connected with main frame, and power measurement function is realized jointly；
In main frame, including following unit module：
Analog channel unit and ADC, analog channel unit is amplified the voltage signal of probe data, filtering process,
Being sent to ADC carries out A/D conversions, and the adc data after conversion sends into EPLD, through serioparallel exchange and preliminary treatment inside EPLD,
Effective ADC is write into the register inside EPLD, notifies that DSP reads effective adc data in the way of interrupting；
The plug-in SDRAM of DSP, extend the memory space of DSP, and SDRAM is connected by external storage interface with DSP；DSP is external
The operation program for DSP stored in FLASH, FLASH, after upper electricity, the program in FLASH is written to by SPI serial line interfaces
In DSP, operation program is automatically begun to；
Also include：Liquid crystal display, DSP is included performance number and various parameters in liquid crystal display by the first GPIO interface
In device 9；Button, DSP responds button operation by the second GPIO interface；PMU, for battery charging and discharging management, master
The generation of Ji Zhongge roads power supply, the charging of PMU is completed by USB interface, and USB interface is also write in FLASH simultaneously
Enter the operation of program；Lithium battery, for system power supply.
Alternatively, microwave power probe has multiple choices, according to frequency range be divided into 9kHz～6GHz, 10MHz～
18GHz, 10MHz～26.5MHz, 10MHz～40GHz.
Alternatively, the ADC is 24 bits serial A/Ds C.
Alternatively, the quantity of the DSP is 1, using floating point arithmetic.
The invention has the beneficial effects as follows：
(1) small volume, lightweight, is convenient for carrying, and can facilitate and be used where location bias, narrow space；
(2) power from charged pool, can facilitate and be used in the position of AC-less power.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the theory diagram of the Handheld microwave power meter of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, the low-power consumption hand-hold microwave power meter of the present invention：Including：Microwave power probe 1 and main frame 2；It is micro-
Wave power probe 1 is connected by multicore cable 13 with main frame 2, and power measurement function is realized jointly；Microwave power probe 1 has various
Select, 9kHz～6GHz, 10MHz～18GHz, 10MHz～26.5MHz, 10MHz～40GHz, Yong Huke are divided into according to frequency range
According to different demands, suitable probe is selected.
In Handheld microwave power meter main frame 2, including following unit module：Analog channel unit 3, analog-digital converter
The voltage signal of probe data is amplified, is filtered etc. and being processed by ADC 4, analog channel unit 3, is sent to ADC 4 and is carried out A/D and turns
Change, ADC 4 is 24 bits serial A/Ds C, the adc data after conversion sends into EPLD 5, through serioparallel exchange and tentatively inside EPLD
Process, effective ADC is write into the register inside EPLD, notify that DSP 6 reads effective adc data in the way of interrupting.
DSP (digital signal processor) 6 for Handheld microwave power meter core, the present invention in use low-power consumption,
Used as the sole processor of the present invention, power consumption is less than 0.4W to the DSP of floating point arithmetic during its operation.The arithmetic speed of DSP reaches
375MHz, disclosure satisfy that data operation complicated in power measurement；DSP has abundant GPIO interface, be capable of achieving liquid crystal display,
The operation of key response.
The plug-in SDRAM 7 of DSP, the memory space of expansible DSP, SDRAM 7 passes through EMIFB (external storage interface B) 15
It is connected with DSP；The external FLASH 8 of DSP, the operation program for DSP stored in FLASH 8, after upper electricity, the journey in FLASH 8
Sequence in being written to DSP, automatically begins to operation program by SPI serial line interfaces 16.
Hand-held power meter also includes liquid crystal display 9, and from 128 × 64 monochrome LCD displays, DSP is connect by GPIO
Mouth 18 is included performance number and various parameters in liquid crystal display 9；DSP responds button 10 by GPIO interface 17.
The PMU 11 of Handheld microwave power meter is used for battery charging and discharging management, the product of main frame Zhong Ge roads power supply
It is raw, including ± 5V ,+3.3V ,+1.2V Deng Ge roads power supply.The charging of PMU 11 is completed by usb 19, and USB connects
Mouth also achieves the operation of the write-in program in FLASH 8 simultaneously.The capacity of lithium battery 12 be 24.4VAh, handheld microwave work(
Overall Power Consumption about 1.2W during rate meter normal work, it is once fully charged after, can continuously work 9 hours or so.
Relative to current desk-top microwave power meter, it is an advantage of the invention that：It is small volume, lightweight, it is convenient for carrying, can be with
It is convenient to use where location bias, narrow space；Power from charged pool, can facilitate and be used in the position of AC-less power.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (4)
1. a kind of low-power consumption hand-hold microwave power meter, it is characterised in that include：Microwave power is popped one's head in and main frame；Microwave power
Probe is connected by multicore cable with main frame, and power measurement function is realized jointly；
In main frame, including following unit module：
Analog channel unit and ADC, analog channel unit is amplified the voltage signal of probe data, filtering process, is sent to
ADC carries out A/D conversions, and the adc data after conversion sends into EPLD, through serioparallel exchange and preliminary treatment inside EPLD, will have
Register inside the ADC write EPLD of effect, notifies that DSP reads effective adc data in the way of interrupting；
The plug-in SDRAM of DSP, extend the memory space of DSP, and SDRAM is connected by external storage interface with DSP；DSP is external
The operation program for DSP stored in FLASH, FLASH, after upper electricity, the program in FLASH is written to by SPI serial line interfaces
In DSP, operation program is automatically begun to；
Also include：Liquid crystal display, DSP is included performance number and various parameters in liquid crystal display 9 by the first GPIO interface
In；Button, DSP responds button operation by the second GPIO interface；PMU, for battery charging and discharging management, main frame
The generation of Zhong Ge roads power supply, the charging of PMU is completed by USB interface, and USB interface writes also in FLASH simultaneously
The operation of program；Lithium battery, for system power supply.
2. a kind of low-power consumption hand-hold microwave power meter as claimed in claim 1：Characterized in that, the microwave power probe
There are multiple choices, 9kHz～6GHz, 10MHz～18GHz, 10MHz～26.5MHz, 10MHz～40GHz are divided into according to frequency range.
3. a kind of low-power consumption hand-hold microwave power meter as claimed in claim 1：Characterized in that, the ADC is 24 bit strings
Row ADC.
4. a kind of low-power consumption hand-hold microwave power meter as claimed in claim 1：Characterized in that, the quantity of the DSP is 1
It is individual, using floating point arithmetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035792.1A CN106569022A (en) | 2016-11-15 | 2016-11-15 | Low-power-consumption hand-held microwave power meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035792.1A CN106569022A (en) | 2016-11-15 | 2016-11-15 | Low-power-consumption hand-held microwave power meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106569022A true CN106569022A (en) | 2017-04-19 |
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ID=58542974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611035792.1A Pending CN106569022A (en) | 2016-11-15 | 2016-11-15 | Low-power-consumption hand-held microwave power meter |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201035096Y (en) * | 2006-07-22 | 2008-03-12 | 合肥众成生物工程设备有限公司 | Hand-hold microwave wattmeter |
| CN103389410A (en) * | 2013-07-10 | 2013-11-13 | 中国电子科技集团公司第四十一研究所 | Microwave power testing device based on universal serial bus (USB) interface |
| CN103984263A (en) * | 2014-05-07 | 2014-08-13 | 中国电子科技集团公司第四十一研究所 | Universal DSP module compatible with ISA bus interface and PCI bus interface and configuration method |
| CN204347589U (en) * | 2015-01-14 | 2015-05-20 | 邓柳于勤 | A kind of embedded data acquisition based on microprocessor and disposal system |
| CN105425028A (en) * | 2015-10-27 | 2016-03-23 | 中国电子科技集团公司第四十一研究所 | Microwave power measurer based on FPGA |
-
2016
- 2016-11-15 CN CN201611035792.1A patent/CN106569022A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201035096Y (en) * | 2006-07-22 | 2008-03-12 | 合肥众成生物工程设备有限公司 | Hand-hold microwave wattmeter |
| CN103389410A (en) * | 2013-07-10 | 2013-11-13 | 中国电子科技集团公司第四十一研究所 | Microwave power testing device based on universal serial bus (USB) interface |
| CN103984263A (en) * | 2014-05-07 | 2014-08-13 | 中国电子科技集团公司第四十一研究所 | Universal DSP module compatible with ISA bus interface and PCI bus interface and configuration method |
| CN204347589U (en) * | 2015-01-14 | 2015-05-20 | 邓柳于勤 | A kind of embedded data acquisition based on microprocessor and disposal system |
| CN105425028A (en) * | 2015-10-27 | 2016-03-23 | 中国电子科技集团公司第四十一研究所 | Microwave power measurer based on FPGA |
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Application publication date: 20170419 |