CN106342223B - A kind of guided missile electric detonation circuitous resistance high precision instrument for testing - Google Patents
A kind of guided missile electric detonation circuitous resistance high precision instrument for testingInfo
- Publication number
- CN106342223B CN106342223B CN200610055234.1A CN200610055234A CN106342223B CN 106342223 B CN106342223 B CN 106342223B CN 200610055234 A CN200610055234 A CN 200610055234A CN 106342223 B CN106342223 B CN 106342223B
- Authority
- CN
- China
- Prior art keywords
- fixed contact
- contact
- change
- over switch
- resistance
- 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.)
- Expired - Fee Related
Links
Abstract
The invention belongs to measuring technology, relate to a kind of guided missile electric detonation circuitous resistance high precision instrument for testing. A kind of guided missile electric detonation circuitous resistance high precision instrument for testing, comprise a housing, it is characterized in that, it is made up of single-chip microcomputer [1], display [2], keyboard [3], A/D converter [4], operational amplifier [5], current selected switch [6], the first change-over switch [7], constant-current source [8], the second change-over switch [9], measuring resistance row [10] and 2 gear indicator lamps [13]. Measuring accuracy of the present invention is high, the not impact of tested person length of cable, testing contact resistance, and serviceability temperature wide ranges, intuitive display, can meet the electric detonation circuitous resistance test request of high accuracy, high safety test requirement.
Description
Technical field
The invention belongs to measuring technology, relate to a kind of guided missile electric detonation circuitous resistance high precision instrument for testing.
Background technology
Domestic air-to-air missile electric detonation circuit tester all adopts pointer electric bridge class testing instrument to carry out guided missileThe test of electric detonation circuitous resistance. Its measuring accuracy is low, and tested person length of cable, test contactThe impact of resistance, shows not intuitively, and serviceability temperature narrow range, can not meet and have degree of precision requirementTest request and the field testing requirement of electric detonation circuit. For example, newly the air-to-air missile of development is sent outMotivation adopts insensitiveness igniting element and other electric detonation circuit, stricter to igniting resistance requirement,Be up to ± 50m of resistance fluctuation scope Ω wants resistance between energy test point ignition circuit and housing simultaneouslyBe up to 20M Ω, also requirement can be used under the condition of-40～+ 50 DEG C. Existing electric detonation circuit is surveyedThe highest measuring accuracy of examination instrument is only ± 100m Ω to realize the test of large resistance.
Summary of the invention
The object of the invention is: propose that a kind of measuring accuracy is high, not tested person length of cable and testThe impact of contact resistance, intuitive display, can meet the electric detonation that high accuracy, high safety test requireCircuitous resistance testing arrangement.
Technical scheme of the present invention is: a kind of guided missile electric detonation circuitous resistance high precision instrument for testing, comprisesA housing, is characterized in that, it by single-chip microcomputer 1, display 2, keyboard 3, A/D converter 4,Operational amplifier 5, current selected switch 6, the first change-over switch 7, constant-current source 8, the second switchingSwitch 9,10 and 2 gear indicator lamps 13 of measuring resistance row form, 3 points, display 2 and keyboardBe not connected with the corresponding interface of single-chip microcomputer 1; The power input of constant-current source 8 is connected with power Vcc,The output of constant-current source 8 is measured with first: splicing ear 11 is connected, 4 electric current choosings of constant-current source 8Select input and be connected with 4 outputs of current selected switch 6 respectively, current selected switch 6Control end is connected with the corresponding parallel output port of single-chip microcomputer 1; The corresponding parallel output of single-chip microcomputer 1Port is connected with the control port of the first change-over switch 7, and the first change-over switch 7 has 3 fixing touchingPoint g1, g2, g3 and 2 armature contact h1, h2, armature contact h1 at fixed contact g1 andBetween g2, switch, armature contact h2 synchronously switches between fixed contact g2 and g3, when activity is touchedWhen point h1 contacts with fixed contact g1, armature contact h2 contacts with fixed contact g2, works as activityWhen contact h1 contacts with fixed contact g2, armature contact h2 contacts with fixed contact g3, fixingContact g1 and first measures splicing ear 11 and is connected, and fixed contact g2 and second measures splicing ear12 connect, fixed contact g3 ground connection, the normal phase input end of armature contact h1 and operational amplifier 5Connect, armature contact h2 is connected with the inverting input of operational amplifier 5; Operational amplifier 5Output is connected with the input of A/D converter 4, the output of A/D converter 4 and single-chip microcomputer 1Corresponding data-in port connects; The corresponding parallel output port of single-chip microcomputer 1 and second switches to be leftThe control port of pass 9 connects, and the second change-over switch 9 has 1 armature contact b and 4 fixing touchingPoint d1, d2, d3, d4, second measures the armature contact of splicing ear 12 and the second change-over switch 9B connects, and 4 fixed contact d1, d2, d3, d4 arrange 4 marks in 10 with measuring resistance respectivelyOne end of accurate resistance R 1～R4 connects, the other end ground connection of 4 measuring resistance R1～R4; 2 shelvesOne end of indicator lamp 13, position and the parallel output port of single-chip microcomputer 1 are connected, its other end ground connection.
Advantage of the present invention is: measuring accuracy of the present invention is high, and tested person length of cable, test do not connectThe impact of electric shock resistance, serviceability temperature wide ranges, intuitive display, can meet high accuracy, high safety surveyThe electric detonation circuitous resistance test request that examination requires.
Brief description of the drawings
Fig. 1 is circuit structure principle schematic of the present invention.
Fig. 2 is software main flow chart of the present invention.
Detailed description of the invention
Below the present invention is described in further details. Design principle of the present invention is: adopt constant-current sourceThe measuring current that is not more than 10mA (automatically selecting) is provided, resistance test scope is divided into 4 grade (10Ω is following, 10 Ω～1k Ω, 1k Ω～100k Ω, 100k Ω～20M Ω), for different electricityResistance gear, provides different measuring currents. Utilize Single-chip Controlling to carry out this selection. For ensureingMeasuring accuracy, by built-in corresponding to different gear measuring resistances carry out test result comparison andRevise the impact that simultaneously adopts four-wire measurement method to eliminate contact resistance and measure cable. AdoptCharactron display mode shows result, and the demonstration of different unit of resistance has been indicated by indicator lamp.
Circuit theory of the present invention is as follows: referring to Fig. 1, and guided missile electric detonation circuitous resistance high accuracy of the present inventionTester, comprises a housing, it is characterized in that, it by single-chip microcomputer 1, display 2, keyboard 3,A/D converter 4, operational amplifier 5, current selected switch 6, the first change-over switch 7, constant-current source8, the second change-over switch 9,10 and 2 gear indicator lamps 13 of measuring resistance row form.
Display 2 is connected with the corresponding interface of single-chip microcomputer 1 respectively with keyboard 3. The electricity of constant-current source 8Source input is connected with power Vcc, and the output of constant-current source 8 and first is measured splicing ear 11 and connectedConnect, 4 electric currents of constant-current source 8 select inputs respectively with 4 outputs of current selected switch 6End connects, and the control end of current selected switch 6 is connected with the corresponding parallel output port of single-chip microcomputer 1.
The corresponding parallel output port of single-chip microcomputer 1 is connected with the control port of the first change-over switch 7,The first change-over switch 7 has 3 fixed contact g1, g2, g3 and 2 armature contact h1, h2, livesMovable contact h1 switches between fixed contact g1 and g2, armature contact h2 at fixed contact g2 andBetween g3 synchronously switch, in the time that armature contact h1 contacts with fixed contact g1, armature contact h2 andFixed contact g2 contact, in the time that armature contact h1 contacts with fixed contact g2, armature contact h2G3 contacts with fixed contact, and fixed contact g1 and first measures splicing ear 11 and is connected, fixing touchingPoint g2 with second measure splicing ear 12 be connected, fixed contact g3 ground connection, armature contact h1 andThe normal phase input end of operational amplifier 5 connects, armature contact h2 and operational amplifier 5 anti-phase defeatedEntering end connects.
The output of operational amplifier 5 is connected with the input of A/D converter 4, A/D converter 4Output be connected with the corresponding data-in port of single-chip microcomputer 1.
The corresponding parallel output port of single-chip microcomputer 1 is connected with the control port of the second change-over switch 9,The second change-over switch 9 has 1 armature contact b and 4 fixed contact d1, d2, d3, d4,Two measure splicing ear 12 is connected with the armature contact b of the second change-over switch 9,4 fixed contactsD1, d2, d3, d4 arrange respectively the one end of 4 measuring resistance R1～R4 in 10 with measuring resistanceConnect the other end ground connection of 4 measuring resistance R1～R4.
Have one end of 2 gear indicator lamps 13 and the parallel output port of single-chip microcomputer 1 to be connected, it is anotherOne end ground connection. The bright expression of one of them lamp K Ω gear, the bright expression of another lamp M Ω gear, twoAll do not work and represent Ω gear.
Referring to Fig. 2, after tester start of the present invention, first measurement terminal short circuit is shown as to " 0.000 ",Again measurement terminal is disconnected and is shown as " FFFF ", illustrate that tester is normal, can carry out electric detonation electricityThe test of road resistance. Measurement terminal is connected or is contacted with tested electric detonation circuit respectively by slotted line,Show value is electric detonation values of circuit resistances, as 2 resistance gear indicator lamps (" k Ω " and " M Ω "Indicator lamp) while not working, the unit of show value is " Ω ", in the time that " k Ω " indicator lamp is bright, show valueUnit " k Ω ", in the time that " M Ω " indicator lamp is bright, show value unit is " M Ω "; Measure and finish,Press closing key, tester shutdown.
The technical indicator of one embodiment of the present of invention is as follows: measuring accuracy is below 0.5 Ω, the highestMeasuring accuracy is ± 10m Ω; Be show value at 0.5 Ω～10 Ω ± 2%; 10 Ω～20M Ω is for aobviousIndicating value ± 5%. Serviceability temperature is-40～+ 50 DEG C; Measuring current is not more than 10mA.
Claims (3)
1. a guided missile electric detonation circuitous resistance high precision instrument for testing, comprises a housing, and its feature existsIn, it is by single-chip microcomputer [1], display [2], keyboard [3], A/D converter [4], operational amplifier[5], current selected switch [6], the first change-over switch [7], constant-current source [8], the second change-over switch[9], measuring resistance is arranged [10] and 2 gear indicator lamps [13] composition, display [2] and keyboard [3]Be connected with the corresponding interface of single-chip microcomputer [1] respectively; Power input and the power Vcc of constant-current source [8]Connect, the output of constant-current source [8] and first is measured splicing ear [11] and is connected, 4 of constant-current source [8]Individual electric current selects input to be connected with 4 outputs of current selected switch [6] respectively, and electric current is selectedThe control end of switch [6] is connected with the corresponding parallel output port of single-chip microcomputer [1]; Single-chip microcomputer [1] is correspondingParallel output port be connected with the control port of the first change-over switch [7], the first change-over switch [7]Have 3 fixed contact g1, g2, g3 and 2 armature contact h1, h2, armature contact h1 is solidBetween fixed contact g1 and g2, switch, armature contact h2 synchronously cuts between fixed contact g2 and g3Change, in the time that armature contact h1 contacts with fixed contact g1, armature contact h2 and fixed contact g2Contact, in the time that armature contact h1 contacts with fixed contact g2, armature contact h2 and fixed contact g3Contact, fixed contact g1 and first measures splicing ear [11] and is connected, fixed contact g2 and secondMeasure splicing ear [12] and connect, fixed contact g3 ground connection, armature contact h1 and operational amplifier[5] normal phase input end connects, and armature contact h2 is connected with the inverting input of operational amplifier [5];The output of operational amplifier [5] is connected with the input of A/D converter [4], A/D converter [4]The corresponding data-in port of output and single-chip microcomputer [1] be connected; Single-chip microcomputer [1] is parallel accordinglyOutput port is connected with the control port of the second change-over switch [9], and the second change-over switch [9] has] individualArmature contact b and 4 fixed contact d1, d2, d3, d4, second measure splicing ear [12] withThe armature contact b of the second change-over switch [9] connects, and 4 fixed contact d1, d2, d3, d4 distinguishBe connected 4 measuring resistances with the one end of 4 measuring resistance R1～R4 in measuring resistance row [10]The other end ground connection of R1～R4; One end of 2 gear indicator lamps [13] and single-chip microcomputer [1] parallel defeatedOutbound port connects, its other end ground connection.
2. tester according to claim 1, is characterized in that, operational amplifier [5],The power input of current selected switch [6], the first change-over switch [7], the second change-over switch [9] withBetween power Vcc, be in series with current-limiting resistance; Output and first at constant-current source [8] is measured linkBetween son [11], second measure splicing ear [12] and the armature contact b of the second change-over switch [9] itBetween, fixed contact g1 and first measure splicing ear is connected between [11] and fixed contact g2 andBetween the second measurement splicing ear [12], be all in series with current-limiting resistance, measuring electric current can not be greater than simultaneously
10mA。
3. tester according to claim 1 and 2, is characterized in that, said standard electricThe resistance of resistance R1～R4 is 10 Ω, 100 Ω, 10k Ω and 500k Ω, and precision is 1 ‰.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610055234.1A CN106342223B (en) | 2006-01-12 | 2006-01-12 | A kind of guided missile electric detonation circuitous resistance high precision instrument for testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610055234.1A CN106342223B (en) | 2006-01-12 | 2006-01-12 | A kind of guided missile electric detonation circuitous resistance high precision instrument for testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106342223B true CN106342223B (en) | 2010-08-04 |
Family
ID=57797864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610055234.1A Expired - Fee Related CN106342223B (en) | 2006-01-12 | 2006-01-12 | A kind of guided missile electric detonation circuitous resistance high precision instrument for testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106342223B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872842A (en) * | 2017-04-11 | 2017-06-20 | 东南大学 | Potentiometer carbon plate tester and measuring method with resistance sorting measurement function |
| CN114152154A (en) * | 2021-11-25 | 2022-03-08 | 兰州北方机电有限公司 | Universal missile electric igniter detection system |
-
2006
- 2006-01-12 CN CN200610055234.1A patent/CN106342223B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872842A (en) * | 2017-04-11 | 2017-06-20 | 东南大学 | Potentiometer carbon plate tester and measuring method with resistance sorting measurement function |
| CN106872842B (en) * | 2017-04-11 | 2023-09-15 | 东南大学 | Potentiometer carbon sheet tester with resistance sorting and measuring functions and measuring method |
| CN114152154A (en) * | 2021-11-25 | 2022-03-08 | 兰州北方机电有限公司 | Universal missile electric igniter detection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102435894A (en) | Digital leakage protector tester and test method thereof | |
| CN213181942U (en) | Be applicable to BMS simulation front end and gather chip functional test frock | |
| CN109854414A (en) | A kind of safety ignition mechanism unit tester | |
| CN201199264Y (en) | Multi purpose meter for checking process | |
| CN106342223B (en) | A kind of guided missile electric detonation circuitous resistance high precision instrument for testing | |
| CN203688108U (en) | Transformer temperature measurement system calibration meter | |
| CN213813912U (en) | Portable intelligent detector for testing micro-current multi-core cable | |
| CN104865482A (en) | High-precision comprehensive electrical parameter detector for duplex potentiometer | |
| CN102175941B (en) | Optical coupler measurement device capable of directly displaying current transfer ratio | |
| CN108828359A (en) | A kind of method of inspection for realizing direct-current charging post electric flux error checking function | |
| CN201600173U (en) | Tester of helicopter oil gage indicator | |
| CN107884653B (en) | Electricity inspection equipment for extensible module | |
| CN216387829U (en) | Program-controlled resistance box for vehicle-mounted instrument | |
| CN211123230U (en) | Portable automatic debugging system for calibrator | |
| CN201203593Y (en) | Instrument for measuring combustible gas concentration | |
| CN109443599A (en) | A kind of marine diesel thermal resistance automatic measurement system and measurement method | |
| CN213148221U (en) | Palladium alloy film hydrogen sensor | |
| CN109374306A (en) | A kind of movable type internal combustion engine measure and control device | |
| CN202494714U (en) | Novel electroscope | |
| CN200944423Y (en) | Automatic calibrating device for lithium ion battery formation cabinet | |
| CN203705563U (en) | Digital display potentiometer motive noise detector | |
| CN216900728U (en) | Comprehensive electric system maintenance instrument | |
| CN104101782A (en) | Resistance testing circuit and testing device | |
| CN201845059U (en) | Process checking multimeter | |
| CN108490264A (en) | A kind of digital display explosion cap tester and its operating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| DCSP | Declassification of secret patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20190112 |