CN207096392U - Unit ignition circuit test circuit on a kind of bullet - Google Patents
Unit ignition circuit test circuit on a kind of bullet Download PDFInfo
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- CN207096392U CN207096392U CN201720931784.9U CN201720931784U CN207096392U CN 207096392 U CN207096392 U CN 207096392U CN 201720931784 U CN201720931784 U CN 201720931784U CN 207096392 U CN207096392 U CN 207096392U
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Abstract
The utility model discloses unit ignition circuit test circuit on a kind of bullet, and igniting sequential is tested including the use of photoelectrical coupler, passes through instrument amplifier, test igniting via resistance resistance；In the case that unit is not powered on bullet, while high precision measurement is realized, it is ensured that the security of test.The external A/D sample circuits of operational amplifier, when external A/D sample circuits test scope is 0V~+5V, it is possible to achieve the measurement of 0 Ω to 12 Ω priming system protective resistance；When external A/D sample circuits test scope is 0V~+10V, it is possible to achieve the measurement of 0 Ω to 24 Ω priming system protective resistance.
Description
Technical field
The utility model belongs to circuit testing technology field, is tested more particularly, to unit ignition circuit on a kind of bullet
Circuit.
Background technology
The performance of unit ignition circuit is directly connected to whether igniting succeeds on bullet, therefore, must before fire trial is carried out
Ignition circuit test must be carried out；Test for unit ignition circuit on bullet includes timing sequence test and priming system protective resistance resistance
Test；Wherein, timing sequence test needs power-up to be tested, and the test of priming system resistance can not then power up, power-up test one
Aspect can cause the resistance inaccuracy of test, and the opposing party may result in the damage of the instrument amplifier of test resistance.
Utility model content
For the disadvantages described above or Improvement requirement of prior art, the utility model provides unit ignition circuit on a kind of bullet
Test circuit, its object is to provide a kind of low voltage experiment circuit, realized in the case where being changed without test plug to priming system
The test of protective resistance resistance is compatible with timing sequence test.
To achieve the above object, according to one side of the present utility model, there is provided unit ignition circuit is surveyed on a kind of bullet
Try circuit, including the first relay, the second relay, the 3rd relay, the 4th relay, the 5th relay, photoelectrical coupler,
Instrument amplifier, operational amplifier, diode；
The first input end of second relay is used to access " SXDZ11+ " signal, and the second input is used to access " SXDZ12
+ " signal, the first output end is used for output resistance TCH test channel " DZCSH " signal, and it is logical that the second output end is used for output resistance test
Road " DZCSL " signal；
The first input end of 3rd relay is used to access " SXDZ21+ " signal, and the second input is used to access " SXDZ22
+ " signal, the first output end is used for output resistance TCH test channel " DZCSH " signal, and it is logical that the second output end is used for output resistance test
Road " DZCSL " signal；
The first input end of 4th relay is used to access " SXDZ31+ " signal, and the second input is used to access " SXDZ32
+ " signal, the first output end is used for output resistance TCH test channel " DZCSH " signal, and it is logical that the second output end is used for output resistance test
Road " DZCSL " signal；
The first input end of 5th relay is used to access " SXDZ41+ " signal, and the second input is used to access " SXDZ42
+ " signal, the first output end is used for output resistance TCH test channel " DZCSH " signal, and it is logical that the second output end is used for output resistance test
Road " DZCSL " signal；
Diodes in parallel is at the both ends of the first relay line bag, and a parallel connected end is used for the positive pole for connecting power supply, separately
One parallel connected end is used for the negative pole for connecting power supply；First relay includes two groups of switches, and one of one of which switch is defeated
Enter end to be used to connect output resistance TCH test channel " DZCSH " signal；One input of another group of switch is used to connect output electricity
Hinder TCH test channel " DZCSL " signal；
" SXDZ11+ " signal is connected to the first passage input positive terminal of photoelectrical coupler through a resistance R9；" DZGND " connects
It is connected to the first passage input negative terminal of photoelectrical coupler；Between the first passage input positive terminal and negative terminal of photoelectrical coupler have across
Connecting resistance R13；
" SXDZ21+ " signal is connected to photoelectrical coupler B1 second channel input positive terminal through a resistance R10；
" DZGND " is connected to photoelectrical coupler B1 second channel input negative terminal；The second channel input positive terminal of photoelectrical coupler is with bearing
There is bridging resistance R14 between end；
" SXDZ31+ " signal is connected to photoelectrical coupler B1 third channel input positive terminal through a resistance R11；
" DZGND " is connected to photoelectrical coupler B1 third channel input negative terminal；The third channel input positive terminal of photoelectrical coupler is with bearing
There is bridging resistance R15 between end；
" SXDZ41+ " signal is connected to photoelectrical coupler B1 fourth lane input positive terminal through a resistance R16；
" DZGND " is connected to photoelectrical coupler B1 fourth lane input negative terminal；The fourth lane input positive terminal of photoelectrical coupler is with bearing
There is bridging resistance R16 between end；
Photoelectrical coupler the ten, the 12,14,16 ends are connected with 5V power supplys；Connect a 1K resistance R20 at 9th end
After be grounded, output signal XSC4；It is grounded after tenth one end series connection, one 1K resistance R19, output signal XSC3；13rd series connection one
It is grounded, is grounded after one output signal XSC2, the 15th end series connection 1K resistance R17, output signal XSC1 after individual 1K resistance R18.
Preferably, unit ignition circuit test circuit on above-mentioned bullet, the input positive terminal and negative terminal of photoelectrical coupler are connected across
Between resistance use 1K resistance.
Preferably, unit ignition circuit test circuit on above-mentioned bullet, " SXDZ11+ " signal end, " SXDZ21+ " signal end,
Resistance R9, R10, the R11 to be connected between " SXDZ31+ " signal end, " SXDZ41+ " signal end and the input positive terminal of photoelectric coupling,
R12 resistance is 1K.
Preferably, unit ignition circuit test circuit on above-mentioned bullet, the 9th end of photoelectrical coupler, the tenth one end, the tenth
The grounding resistance that three ends, the 15th end are connected is 1K resistance.
Preferably, unit ignition circuit test circuit on above-mentioned bullet, its first relay is by power supply signal on bullet come pipe
Instrument amplifier N1 processed；When there is electricity on bullet, then the first relay adhesive, it is impossible to carry out resistance test；Second relay is used
Tested in first via circuitous resistance resistance, the 3rd relay is used for the second road circuitous resistance resistance test, and the 4th relay is used for
3rd road circuitous resistance resistance test；5th relay is used for the 4th road circuitous resistance resistance test.
Preferably, unit ignition circuit test circuit on above-mentioned bullet, when unit is not powered on tested bullet, it can be carried out
Priming system protective resistance resistance is tested；The first relay of adhesive second, continuity test aisle resistance TCH test channel " DZCSH " and
" DZCSL ", by the wheatstone bridge circuit being made up of resistance R2, R3, R4 and electric capacity C1, it is linked into amplifier N1；Computing is put
Big device N2 input is connected with amplifier N1 output end, and operational amplifier N2 output end is used for external A/D chips.
In general, by the contemplated above technical scheme of the utility model compared with prior art, can obtain down
Row beneficial effect：
(1) unit ignition circuit test circuit on bullet provided by the utility model, using unit power supply control firer on bullet
Product protective resistance, it is ensured that when carrying out the test of priming system protective resistance, unit is not powered on bullet, is realizing the same of high precision measurement
When, it is ensured that the security of test；
(2) unit ignition circuit test circuit on bullet provided by the utility model, when from A/D test scopes be 0V~+
During 5V, it is possible to achieve the measurement of 0 Ω to 12 Ω priming system protective resistance；, can when it is 0V~+10V to select A/D test scopes
To realize the measurement of 0 Ω to 24 Ω priming system protective resistance.
Brief description of the drawings
Fig. 1 is the physical circuit figure of unit ignition circuit test circuit on the bullet of embodiment offer.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.In addition, institute in each embodiment of the utility model disclosed below
As long as the technical characteristic being related to does not form conflict each other, can is mutually combined.
It is the physical circuit figure of unit ignition circuit test circuit on the bullet of embodiment offer shown in Fig. 1, the device includes
First relay K1, the second relay K2, the 3rd relay K3, the 4th relay K4, the 5th relay K5, photoelectrical coupler
B1, instrument amplifier N1, operational amplifier N2；
" SXDZ11+ " signal accesses the second relay K2 first input end, and " SXDZ12+ " signal accesses the second relay
K2 the second input；Second relay K2 the first output end is used for output resistance TCH test channel " DZCSH " signal, second after
The output ends of electrical equipment K2 second are used for output resistance TCH test channel " DZCSL " signal；
" SXDZ21+ " signal accesses the 3rd relay K3 first input end, and " SXDZ22+ " signal accesses the 3rd relay
K3 the second input；3rd relay K3 the first output end is used for output resistance TCH test channel " DZCSH " signal, the 3rd after
The output ends of electrical equipment K3 second are used for output resistance TCH test channel " DZCSL " signal；
" SXDZ31+ " signal accesses the 4th relay K4 first input end, and " SXDZ32+ " signal accesses the 4th relay
K4 the second input；4th relay K4 the first output end is used for output resistance TCH test channel " DZCSH " signal, the 4th after
The output ends of electrical equipment K4 second are used for output resistance TCH test channel " DZCSL " signal；
" SXDZ41+ " signal accesses the 5th relay K5 first input end, and " SXDZ42+ " signal accesses the 5th relay
K5 the second input；5th relay K5 the first output end is used for output resistance TCH test channel " DZCSH " signal, and second is defeated
Go out end and be used for output resistance TCH test channel " DZCSL " signal；
Diode V17 is connected in parallel on relay K1 line bags K1A both ends, and a parallel connected end is used to connect power supply just
Pole, another parallel connected end are used for the negative pole for connecting power supply；
First relay K1 includes two groups of switches；One input of one of which switch is used to connect output resistance test
Passage " DZCSH " signal；One input of another group of switch is used to connect output resistance TCH test channel " DZCSL " signal.
" SXDZ11+ " signal is connected to photoelectrical coupler B1 first passage input positive terminal through a 2.2K resistance R9；
" DZGND " is connected to photoelectrical coupler B1 first passage input negative terminal；The first passage that one 1K resistance R13 is connected across B1 is defeated
Enter between anode and negative terminal；
" SXDZ21+ " signal is connected to photoelectrical coupler B1 second channel input positive terminal through a 2.2K resistance R10；
" DZGND " is connected to photoelectrical coupler B1 second channel input negative terminal；The second channel that one 1K resistance R14 is connected across B1 is defeated
Enter between anode and negative terminal；
" SXDZ31+ " signal is connected to photoelectrical coupler B1 third channel input positive terminal through a 2.2K resistance R11；
" DZGND " is connected to photoelectrical coupler B1 third channel input negative terminal；The third channel that one 1K resistance R15 is connected across B1 is defeated
Enter between anode and negative terminal；
" SXDZ41+ " signal is connected to photoelectrical coupler B1 fourth lane input positive terminal through a 2.2K resistance R16；
" DZGND " is connected to photoelectrical coupler B1 fourth lane input negative terminal；The fourth lane that one 1K resistance R16 is connected across B1 is defeated
Enter between anode and negative terminal；
Photoelectrical coupler B1 outputs the ten, the 12,14,16 ends are connected with 5V power supplys；Connect a 1K at 9th end
It is grounded after resistance R20, output signal XSC4；It is grounded after tenth one end series connection, one 1K resistance R19, output signal XSC3；Tenth
It is grounded, is grounded after one output signal XSC2, the 15th end series connection 1K resistance R17, output letter after three one 1K resistance R18 of series connection
Number XSC1.In above-mentioned test circuit, the first relay K1 is by power supply signal+BB on bullet and-BB come control instrument amplifier
N1 ,+BB and-BB are+28V；When there is electricity on bullet, then K1 adhesives, it is impossible to carry out resistance test；Second relay K2 is used for the
Circuitous resistance resistance is tested all the way；3rd relay K3 is used for the second road circuitous resistance resistance test；4th relay K4 is used for
3rd road circuitous resistance resistance test；5th relay K5 is used for the 4th road circuitous resistance resistance test.
In Fig. 1, " SXDZ11+ " and " SXDZ12+ " is the passage main track with priming system protective resistance of priming system output,
" DZGND " is passage negative wire, and "+BB " and "-BB " is the positive pole and negative pole of the power supply of tested unit.First relay K1 is used
In control priming system protective resistance resistance passage, after tested unit distribution, the first relay K1 adhesives, resistance test passage
" DZCSH " and " DZCSL " disconnects, it is impossible to carries out resistance test；" SXDZ11+ " connects photo-coupler with " DZGND " signal
B1 carries out timing sequence test.
When tested unit is not powered, the test of priming system protective resistance resistance can be carried out to it；The first relay of adhesive second
Device K2, continuity test aisle resistance TCH test channel " DZCSH " and " DZCSL ", pass through what is be made up of resistance R2, R3, R4 and C1
Wheatstone bridge circuit, it is input to amplifier N1；Operational amplifier N2 input is connected with amplifier N1 output end, and computing is put
Big device N2 output end is used for external A/D chips.In the present embodiment, amplifier N1 uses the instrument amplifier of AD companies
AD620BRZ, its operating voltage ± 2.3V~± 18V, multiplication factor 1~1000；The multiplication factor used in embodiment for
33.93 times.
Operational amplifier N2 carries out voltage follow using OP07A, amplifies instrument amplifier output current, beneficial to A/D chips
Tested.OP07A is a kind of bipolar operational amplifier integrated circuit of the non-chopper-zero-stabilized of low noise, is had low-down defeated
Enter offset voltage 25 μ A of maximum, low input bias current is ± 2nA, and open-loop gain up to arrives 300V/mV, supports that input voltage is
± 3V~± 22V, common-mode resistance impedance are 120G Ω.
Calculated according to instrument amplifier N1 multiplication factor and output voltage values and obtain priming system protective resistance resistance
Wherein,G is instrument amplifier N1 multiplication factor, and Vin is instrument amplifier N1 output voltage values；When
When measured resistance resistance is 0 Ω, Vin 0V；When measured resistance resistance is 4 Ω, Vin 1.647V.When measured resistance resistance
For 12 Ω when, Vin 4.856V.In the present embodiment, 0.1% can be reached by actual test resistance test precision.
When external A/D chips use 0V~+5V test scopes, the device provided by the present embodiment can realize 0
The measurement of priming system sequential and priming system protective resistance resistance between Ω to 12 Ω；When external A/D chips use 0V~+5V
During test scope, the device provided by the present embodiment can realize priming system sequential and priming system guarantor between 0 Ω to 24 Ω
Protect the measurement of resistance.
In the present embodiment, photoelectrical coupler B1 is used for firing circuit timing sequence test, when " SXDZ11+ " and " DZGND " voltage
Be worth for+28V when, B1 output XSC1 signals be 1, when " SXDZ11+ " and " DZGND " magnitude of voltage is 0V, B1 export XSC1
Signal is 0.When " SXDZ21+ " and " DZGND " magnitude of voltage is+28V, the XSC2 signals of B1 outputs are 1, as " SXDZ21+ " and
When " DZGND " magnitude of voltage is 0V, the XSC2 signals of B1 outputs are 0.When " SXDZ31+ " and " DZGND " magnitude of voltage is+28V, B1
The XSC3 signals of output are 1, and when " SXDZ31+ " and " DZGND " magnitude of voltage is 0V, the XSC3 signals of B1 outputs are 0.When
When " SXDZ41+ " and " DZGND " magnitude of voltage is+28V, the XSC4 signals of B1 outputs are 1, when " SXDZ41+ " and " DZGND " voltage
Be worth for 0V when, B1 output XSC4 signals be 0." SXDZ11+ " and " SXDZ12+ " is the band priming system protection electricity of priming system output
The passage main track of resistance, " DZGND " are passage negative wire, and "+BB " and "-BB " is the positive pole and negative pole of the power supply of tested unit.
First relay K1 is used for control priming system protective resistance resistance passage, after tested unit distribution, the first relay K1 adhesives,
Resistance test passage " DZCSH " and " DZCSL " disconnect, it is impossible to carry out resistance test.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
To limit the utility model, any modification of all made within spirit of the present utility model and principle, equivalent substitution and change
Enter, should be included within the scope of protection of the utility model.
Claims (6)
1. unit ignition circuit test circuit on a kind of bullet, it is characterised in that including the first relay, the second relay, the 3rd
Relay, the 4th relay, the 5th relay, photoelectrical coupler, instrument amplifier, operational amplifier, diode and several
Resistance；
The first input end of second relay is used to access " SXDZ11+ " signal, and the second input is used to access " SXDZ12
+ " signal, the first output end is used for output resistance TCH test channel " DZCSH " signal, and it is logical that the second output end is used for output resistance test
Road " DZCSL " signal；
The first input end of 3rd relay is used to access " SXDZ21+ " signal, and the second input is used to access " SXDZ22+ " letter
Number, the first output end is used for output resistance TCH test channel " DZCSH " signal, and the second output end is used for output resistance TCH test channel
" DZCSL " signal；
The first input end of 4th relay is used to access " SXDZ31+ " signal, and the second input is used to access " SXDZ32+ " letter
Number, the first output end is used for output resistance TCH test channel " DZCSH " signal, and the second output end is used for output resistance TCH test channel
" DZCSL " signal；
The first input end of 5th relay is used to access " SXDZ41+ " signal, and the second input is used to access " SXDZ42+ " letter
Number, the first output end is used for output resistance TCH test channel " DZCSH " signal, and the second output end is used for output resistance TCH test channel
" DZCSL " signal；
The diodes in parallel is at the both ends of the first relay line bag, and a parallel connected end is used for the positive pole for connecting power supply, separately
One parallel connected end is used for the negative pole for connecting power supply；First relay includes two groups of switches, and one of one of which switch is defeated
Enter end to be used to connect output resistance TCH test channel " DZCSH " signal；One input of another group of switch is used to connect output electricity
Hinder TCH test channel " DZCSL " signal；
" SXDZ11+ " signal is connected to the first passage input positive terminal of photoelectrical coupler through a resistance R9；" DZGND " is connected to
The first passage input negative terminal of photoelectrical coupler；There is bridging electricity between the first passage input positive terminal and negative terminal of photoelectrical coupler
Hinder R13；
" SXDZ21+ " signal is connected to the second channel input positive terminal of photoelectrical coupler through a resistance R10；" DZGND " signal
It is connected to the second channel input negative terminal of photoelectrical coupler；Have between the second channel input positive terminal and negative terminal of photoelectrical coupler
Bridge resistance R14；
" SXDZ31+ " signal is connected to photoelectrical coupler B1 third channel input positive terminal through a resistance R11；" DZGND " connects
It is connected to photoelectrical coupler B1 third channel input negative terminal；Have between the third channel input positive terminal and negative terminal of photoelectrical coupler
Bridge resistance R15；
" SXDZ41+ " signal is connected to photoelectrical coupler B1 fourth lane input positive terminal through a resistance R16；" DZGND " connects
It is connected to photoelectrical coupler B1 fourth lane input negative terminal；Have between the fourth lane input positive terminal and negative terminal of photoelectrical coupler
Bridge resistance R16；
Photoelectrical coupler the ten, the 12,14,16 ends are connected with 5V power supplys；9th end, one resistance R20 of series connection is followed by
Ground, output signal XSC4；It is grounded after tenth one end series connection, one resistance R19, output signal XSC3；13rd one resistance of series connection
It is grounded, is grounded after one output signal XSC2, the 15th end series connection resistance R17, output signal XSC1 after R18.
2. unit ignition circuit test circuit on bullet as claimed in claim 1, it is characterised in that be connected across photoelectrical coupler
Resistance between each passage input positive terminal and input negative terminal uses 1K resistance.
3. unit ignition circuit test circuit on bullet as claimed in claim 1 or 2, it is characterised in that " SXDZ11+ " signal
The input of each energization at end, " SXDZ21+ " signal end, " SXDZ31+ " signal end and " SXDZ41+ " signal end and photoelectric coupling is just
The resistance R9, R10, R11, R12 that are connected between end resistance are 1K.
4. unit ignition circuit test circuit on bullet as claimed in claim 1 or 2, it is characterised in that the of photoelectrical coupler
The grounding resistance that nine ends, the tenth one end, the 13rd end, the 15th end are connected uses 1K resistance.
5. unit ignition circuit test circuit on bullet as claimed in claim 1 or 2, it is characterised in that first relay
By power supply signal on bullet come control instrument amplifier N1；When unit is powered on bullet, then the first relay adhesive, is not available for electricity
Hinder resistance test；Second relay is tested for first via circuitous resistance resistance, and the 3rd relay is used for the second road circuitous resistance
Resistance is tested, and the 4th relay is used for the 3rd road circuitous resistance resistance test；5th relay is used for the 4th road circuitous resistance resistance
Value test.
6. unit ignition circuit test circuit on bullet as claimed in claim 5, it is characterised in that when unit does not supply on tested bullet
When electric, the test of priming system protective resistance resistance can be carried out to it；The first relay of adhesive second, the test of continuity test aisle resistance are logical
Road " DZCSH " and " DZCSL ", by the wheatstone bridge circuit being made up of resistance R2, R3, R4 and electric capacity C1, it is linked into amplification
Device N1；Operational amplifier N2 input is connected with amplifier N1 output end, and operational amplifier N2 output end is for external
A/D chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931784.9U CN207096392U (en) | 2017-07-28 | 2017-07-28 | Unit ignition circuit test circuit on a kind of bullet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931784.9U CN207096392U (en) | 2017-07-28 | 2017-07-28 | Unit ignition circuit test circuit on a kind of bullet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096392U true CN207096392U (en) | 2018-03-13 |
Family
ID=61543120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720931784.9U Active CN207096392U (en) | 2017-07-28 | 2017-07-28 | Unit ignition circuit test circuit on a kind of bullet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207096392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130505A (en) * | 2020-09-27 | 2020-12-25 | 山东航天电子技术研究所 | Initiating explosive device ignition control circuit and method thereof |
| CN112180172A (en) * | 2020-09-28 | 2021-01-05 | 湖北三江航天红峰控制有限公司 | Resistance measuring system and method for multi-path initiating explosive device |
-
2017
- 2017-07-28 CN CN201720931784.9U patent/CN207096392U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130505A (en) * | 2020-09-27 | 2020-12-25 | 山东航天电子技术研究所 | Initiating explosive device ignition control circuit and method thereof |
| CN112180172A (en) * | 2020-09-28 | 2021-01-05 | 湖北三江航天红峰控制有限公司 | Resistance measuring system and method for multi-path initiating explosive device |
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