CN105509723A - Apparatus for testing radio compass reception sensitivity - Google Patents
Apparatus for testing radio compass reception sensitivity Download PDFInfo
- Publication number
- CN105509723A CN105509723A CN201510861411.4A CN201510861411A CN105509723A CN 105509723 A CN105509723 A CN 105509723A CN 201510861411 A CN201510861411 A CN 201510861411A CN 105509723 A CN105509723 A CN 105509723A
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- CN
- China
- Prior art keywords
- compass
- reception sensitivity
- control box
- wireless
- sensitivity test
- Prior art date
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/38—Testing, calibrating, or compensating of compasses
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention belongs to avionics, and provides an apparatus for testing radio compass reception sensitivity. The apparatus comprises the following components: a UHF signal generator 3, which is connected to an ADF signal simulator 2 by a radio frequency cable, and sends radio frequency signals to the ADF signal simulator 2; a radio compass reception sensitivity testing module 9, which is connected to a compass control box 4 and a compass receiver 1 separately, forwards reception instructions from the compass control box 4 to the compass receiver 1, receives audio frequency outputs that are demodulated by the compass receiver 1 from radio frequency signals according to the reception instructions, and sends the audio frequency outputs to an earphone 5; an audio frequency power meter 6, which is connected to the radio compass reception sensitivity testing module 9, and displays magnitude of power of the earphone 5; a radio magnetic indicator 10, which is connected to the radio compass reception sensitivity testing module 9, and displays azimuth analog quantity that is 90 degrees or 270 degrees.
Description
Technical field
The invention belongs to aircraft avionics, relate to a kind of wireless compass reception sensitivity test device.
Background technology
My company is without finished product supporting verification Special test device at present, the requirement verified before wireless compass system is installed cannot be met, can not test the various functions of wireless compass system and detailed technical indicator, take direct installation, the quality of installation finished product can not be ensured.When on machine, energising checks this system malfunctions, means do not judge circuit or other cross-linking apparatus fault on finished product faults itself or machine effectively, can only carry out troubleshooting aboard, also cannot reappear phenomenon of the failure on ground.
Summary of the invention
The technical problem to be solved in the present invention: a kind of wireless compass reception sensitivity test device is provided, the test of reception sensitivity can be carried out, judge tested finished product duty, avoid fault product directly to install, ensure the reliable and use safety of installation end properties.
Technical scheme of the present invention: a kind of wireless compass reception sensitivity test device, comprising:
UHF signal generator 3, is connected by radio-frequency cable with ADF signal simulator 2, sends radiofrequency signal to ADF signal simulator 2;
Wireless compass reception sensitivity test module 9, be connected with control box of compass 4 and compass receiver 1 respectively, reception instruction from control box of compass 4 is transmitted to compass receiver 1, receive compass receiver 1 to export according to the audio frequency of reception instruction from radiofrequency signal demodulation, described audio frequency is exported and sends to earphone 5;
Audio power meter 6, is connected with wireless compass reception sensitivity test module 9, and display audio frequency outputs to the performance number of earphone 5;
Radio magnetic indicator 10, is connected with wireless compass reception sensitivity test module 9, and display orientation angle mould analog quantity is 90 degree or 270 degree;
D.C. regulated power supply 8, be connected with static convertor control box 7 and wireless compass reception sensitivity test module 9, there is provided direct supply to static convertor control box 7, and provide direct supply by wireless compass reception sensitivity test module 9 to compass receiver 1 and control box of compass 4;
Static convertor control box 7, be connected with wireless compass reception sensitivity test module 9, by converting direct-current power into alternating-current power, and provide AC power by wireless compass reception sensitivity test module 9 to compass receiver 1, control box of compass 4, radio magnetic indicator 10.
Beneficial effect of the present invention: the key issue that this test unit verifies before solving the installation of wireless compass system, before finished product installation, the reception sensitivity full test in wireless compass operating frequency range to be completed by it, can also be energized for aircraft general assembly, payment of taking a flight test provides technical guarantee effectively.
Accompanying drawing explanation
Fig. 1 is the test line schematic diagram of test unit of the present invention.
Embodiment
A kind of wireless compass reception sensitivity test device, as shown in Figure 1, comprising:
UHF signal generator 3, is connected by radio-frequency cable with ADF signal simulator 2, sends radiofrequency signal to ADF signal simulator 2;
Wireless compass reception sensitivity test module 9, be connected with control box of compass 4 and compass receiver 1 respectively, reception instruction from control box of compass 4 is transmitted to compass receiver 1, receive compass receiver 1 to export according to the audio frequency of reception instruction from radiofrequency signal demodulation, described audio frequency is exported and sends to earphone 5;
Audio power meter 6, is connected with wireless compass reception sensitivity test module 9, and display audio frequency outputs to the performance number of earphone 5;
Radio magnetic indicator 10, is connected with wireless compass reception sensitivity test module 9, and display orientation angle mould analog quantity is 90 degree or 270 degree;
D.C. regulated power supply 8, be connected with static convertor control box 7 and wireless compass reception sensitivity test module 9, there is provided direct supply to static convertor control box 7, and provide direct supply by wireless compass reception sensitivity test module 9 to compass receiver 1 and control box of compass 4;
Static convertor control box 7, be connected with wireless compass reception sensitivity test module 9, by converting direct-current power into alternating-current power, and provide AC power by wireless compass reception sensitivity test module 9 to compass receiver 1, control box of compass 4, radio magnetic indicator 10.
Workflow of the present invention is as follows:
Connecting D.C. regulated power supply 8 and static convertor control box 7 for wireless compass reception sensitivity test device 9 provides 28V direct supply and 26V/400Hz AC power, controls to output to compass receiver 1 and control box of compass 4 and radio magnetic indicator 10 by wireless compass reception sensitivity test device 9.UHF signal generator 3 is arranged output 300KHz frequency, 1000Hz/30% modulates, and amplitude is the radiofrequency signal of 350 μ V, introduces compass receiver 1 by ADF signal simulator compass antenna 2.When control box of compass 4 operational mode switch puts " reception " position, frequency of operation selects 300KHz, when radio magnetic indicator 10 indicates 90 °, volume control knob on adjustment control box of compass 4, while earphone 5 can hear normal 1000Hz tone, the audio power of display on audio power meter 6 is made to export as 80mW, after removing the modulation signal of UHF signal generator 3, testing audio power stage again, the test result calculations comparing twice goes out signal to noise ratio (S/N ratio) and should be not less than the reception sensitivity that 6dB is compass receiver 1.
Claims (1)
1. a wireless compass reception sensitivity test device, is characterized in that, comprising:
UHF signal generator (3), is connected by radio-frequency cable with ADF signal simulator (2), sends radiofrequency signal to ADF signal simulator (2);
Wireless compass reception sensitivity test module (9), be connected with control box of compass (4) and compass receiver (1) respectively, reception instruction from control box of compass (4) is transmitted to compass receiver (1), receive compass receiver (1) to export according to the audio frequency of reception instruction from radiofrequency signal demodulation, described audio frequency is exported and sends to earphone (5);
Audio power meter (6), is connected with wireless compass reception sensitivity test module (9), and display audio frequency outputs to the performance number of earphone (5);
Radio magnetic indicator (10), is connected with wireless compass reception sensitivity test module (9), and display orientation angle mould analog quantity is 90 degree or 270 degree;
D.C. regulated power supply (8), be connected with static convertor control box (7) and wireless compass reception sensitivity test module (9), there is provided direct supply to static convertor control box (7), and provide direct supply by wireless compass reception sensitivity test module (9) to compass receiver (1) and control box of compass (4);
Static convertor control box (7), be connected with wireless compass reception sensitivity test module (9), by converting direct-current power into alternating-current power, and provide AC power by wireless compass reception sensitivity test module (9) to compass receiver (1), control box of compass (4), radio magnetic indicator (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861411.4A CN105509723A (en) | 2015-11-30 | 2015-11-30 | Apparatus for testing radio compass reception sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861411.4A CN105509723A (en) | 2015-11-30 | 2015-11-30 | Apparatus for testing radio compass reception sensitivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105509723A true CN105509723A (en) | 2016-04-20 |
Family
ID=55717880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510861411.4A Pending CN105509723A (en) | 2015-11-30 | 2015-11-30 | Apparatus for testing radio compass reception sensitivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105509723A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107360529A (en) * | 2017-06-22 | 2017-11-17 | 哈尔滨飞机工业集团有限责任公司 | A kind of radio station voice test device |
| CN110906917A (en) * | 2019-12-19 | 2020-03-24 | 中航贵州飞机有限责任公司 | Test inspection method on multipurpose airplane radio compass |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4342596A1 (en) * | 1993-12-14 | 1995-06-22 | Uhlig Hans Ruediger | Electronic magnetic compass for compensation of course indication errors caused by ship's inclination |
| CN103234534A (en) * | 2013-03-29 | 2013-08-07 | 陕西飞机工业（集团）有限公司 | Method for testing sensitivity of airplane radio compass receiver |
| CN203414793U (en) * | 2013-08-06 | 2014-01-29 | 江西洪都航空工业集团有限责任公司 | Dynamic excitation and simulation system of radio test system |
| CN104515515A (en) * | 2013-09-30 | 2015-04-15 | 哈尔滨飞机工业集团有限责任公司 | Radio compass tester |
-
2015
- 2015-11-30 CN CN201510861411.4A patent/CN105509723A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4342596A1 (en) * | 1993-12-14 | 1995-06-22 | Uhlig Hans Ruediger | Electronic magnetic compass for compensation of course indication errors caused by ship's inclination |
| CN103234534A (en) * | 2013-03-29 | 2013-08-07 | 陕西飞机工业（集团）有限公司 | Method for testing sensitivity of airplane radio compass receiver |
| CN203414793U (en) * | 2013-08-06 | 2014-01-29 | 江西洪都航空工业集团有限责任公司 | Dynamic excitation and simulation system of radio test system |
| CN104515515A (en) * | 2013-09-30 | 2015-04-15 | 哈尔滨飞机工业集团有限责任公司 | Radio compass tester |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107360529A (en) * | 2017-06-22 | 2017-11-17 | 哈尔滨飞机工业集团有限责任公司 | A kind of radio station voice test device |
| CN110906917A (en) * | 2019-12-19 | 2020-03-24 | 中航贵州飞机有限责任公司 | Test inspection method on multipurpose airplane radio compass |
| CN110906917B (en) * | 2019-12-19 | 2022-09-16 | 中航贵州飞机有限责任公司 | Test inspection method on multipurpose airplane radio compass |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160420 |