CN204945369U - A kind of radio altimeter industrial universal tester - Google Patents
A kind of radio altimeter industrial universal tester Download PDFInfo
- Publication number
- CN204945369U CN204945369U CN201520463260.2U CN201520463260U CN204945369U CN 204945369 U CN204945369 U CN 204945369U CN 201520463260 U CN201520463260 U CN 201520463260U CN 204945369 U CN204945369 U CN 204945369U
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- China
- Prior art keywords
- module
- radio altimeter
- model
- utility
- light delay
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- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/882—Radar or analogous systems specially adapted for specific applications for altimeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
- G01S7/406—Means for monitoring or calibrating by simulation of echoes using internally generated reference signals, e.g. via delay line, via RF or IF signal injection or via integrated reference reflector or transponder
- G01S7/4065—Means for monitoring or calibrating by simulation of echoes using internally generated reference signals, e.g. via delay line, via RF or IF signal injection or via integrated reference reflector or transponder involving a delay line
Abstract
The utility model discloses a kind of radio altimeter industrial universal tester, comprise high power attenuator, microwave module, light delay module, control display module and power module, described high power attenuator, microwave module are connected successively with light delay module, described control display module and microwave module and light delay model calling, described power module supplies electric energy needed for other parts.
Description
Technical field
The utility model relates to a kind of electronic instrument, particularly relates to the airborne equipment that a kind of radio signal measures aircraft terrain clearance.
Background technology
Radio altimeter is a kind of airborne equipment using radio signal to measure aircraft terrain clearance, is divided into frequency modulation type and pulsed two kinds of systems by working method; Along with the development that scientific and technological level is at full speed, radio altimeter is widely used in the various aircraft such as military or civil aircraft, unmanned plane, guided missile; But domestic and international existing radio altimeter testing apparatus is only to a kind of working system of pin, poor universality, can not gamut simulated altitude, several fixing height can only be simulated, test not comprehensive; And lag line used mostly is acoustic bulk wave delay line, cost is high, and altitude simulation error is large, soon aging.
Summary of the invention
The utility model, for the deficiencies in the prior art, in conjunction with radiofrequency signal time delay and attenuation principle, provides a kind of radio altimeter industrial universal tester.
To achieve these goals, the technical solution of the utility model is such: a kind of radio altimeter industrial universal tester of the utility model, it is characterized in that: comprise high power attenuator, microwave module, light delay module, control display module and power module, described high power attenuator, microwave module are connected successively with light delay module, described control display module and microwave module and light delay model calling, described power module supplies electric energy needed for other parts.
Further, described control display module is with AC/DC conversion circuit.
The technical solution of the utility model, compared with domestic more existing like products, has the following advantages:
1, can test the radio height table of domestic and international frequency modulation type and pulsed two kinds of systems;
2, simulated altitude can improve configuration, and range is large, can reach 20000 meters, solves existing tester and can only test 2,3 simulated altitudes;
3. volume is little, and carries lithium battery power supply directly can receive radio altimeter transceiver TX RX port on limit, outfield, therefore can identify that radio altimeter system is without part fault more quickly.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1: utility model works schematic diagram.
Fig. 2: the utility model directly modulation type electrooptic modulator working circuit diagram.
Fig. 3: the utility model display control module fundamental diagram.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As Fig. 1, a kind of radio altimeter industrial universal tester of the utility model, comprise high power attenuator, microwave module, light delay module, control display module and power module, described high power attenuator, microwave module are connected successively with light delay module, described control display module and microwave module and light delay model calling, described power module supplies electric energy needed for other parts.
Radiofrequency signal time delay, carries out the time delay of special value, to simulate specific true altitude value to the rf modulated signal of radio altimeter transceiver " transmitting " antenna socket output.During radio frequency signal attenuation; the rf modulated signal exported radio altimeter transceiver " transmitting " antenna socket carries out the power attenuation (can carry out 120dB variable adjustment) of special value or change numerical value, to protect height indicator transceiver or to complete the test of transponder sensitivity performance index.Radiofrequency signal after radiofrequency signal time delay/attenuation module carries out time delay and power attenuation send " reception " antenna socket of radio altimeter transceiver.
In light delay module, choosing of laser instrument mainly contains some requirement following: conversion efficiency, input resistant matching characteristic, modulation band-width, operating temperature range, volume, power consumption and work optical wavelength.The electrooptic modulator of high conversion efficiency can reduce the insertion loss that electro-optic conversion brings, thus improves the operating dynamic range of assembly.Good input resistant matching is not only the essential condition realizing the good amplitude flatness of assembly, also can reduce the extra insertion loss of assembly to a certain extent.This programme chooses directly modulation type, as Fig. 2, directly modulation type electrooptic conversion module is made up of laser instrument, DC bias circuit, match circuit, luminous power testing circuit, temperature-control circuit, optoisolator etc., completes function radiofrequency signal being converted to light signal.There is the advantages such as line construction is simple, RF driving power is low, total link load is low.
The detailed hardware circuit theory composition frame chart of control/display module as shown in Figure 3, + 12V the voltage transformation that external power source module is sent here by the DC-DC voltage conversion circuit in control/display module is+5V and+3.3V voltage, wherein+3.3V voltage supply MCU system ,+5V voltage supplies simulated altitude value and pad value arranges keyboard circuit, simulated altitude value and pad value display driver circuit, lag line selection/damping capacity arranges control signal and exports conditioning/driving circuit and the circuit such as malfunction monitoring and indicating circuit.In control/display module, the PC104 that MCU selects is low in energy consumption, strong interference immunity, program upgrade convenient (directly directly can carry out program upgrade by USB); MCU adopts the mode of rank scanning carry out Scanning Detction to its button (simulated altitude arranges button and damping capacity arranges button) state; The display of simulated altitude value and delta attenuation values adopt 5.1 inch liquid crystal LCD display have power consumption extremely low, still have the advantages such as good contrast in the use occasion of the strong direct projection of outdoor solar light.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a radio altimeter industrial universal tester, it is characterized in that: comprise high power attenuator, microwave module, light delay module, control display module and power module, described high power attenuator, microwave module are connected successively with light delay module, described control display module and microwave module and light delay model calling, described power module supplies electric energy needed for other parts.
2. a kind of radio altimeter industrial universal tester according to claim 1, is characterized in that: described control display module is with AC/DC conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520463260.2U CN204945369U (en) | 2015-06-30 | 2015-06-30 | A kind of radio altimeter industrial universal tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520463260.2U CN204945369U (en) | 2015-06-30 | 2015-06-30 | A kind of radio altimeter industrial universal tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945369U true CN204945369U (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520463260.2U Active CN204945369U (en) | 2015-06-30 | 2015-06-30 | A kind of radio altimeter industrial universal tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204945369U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954058A (en) * | 2019-12-20 | 2020-04-03 | 西安航空电子科技有限公司 | Radio altimeter test system |
| CN113965277A (en) * | 2021-11-05 | 2022-01-21 | 江西洪都航空工业集团有限责任公司 | Method, device and system for testing radio altimeter in closed environment |
-
2015
- 2015-06-30 CN CN201520463260.2U patent/CN204945369U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954058A (en) * | 2019-12-20 | 2020-04-03 | 西安航空电子科技有限公司 | Radio altimeter test system |
| CN113965277A (en) * | 2021-11-05 | 2022-01-21 | 江西洪都航空工业集团有限责任公司 | Method, device and system for testing radio altimeter in closed environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |