CN205263201U - Electric initiating ware tester - Google Patents
Electric initiating ware tester Download PDFInfo
- Publication number
- CN205263201U CN205263201U CN201521088176.3U CN201521088176U CN205263201U CN 205263201 U CN205263201 U CN 205263201U CN 201521088176 U CN201521088176 U CN 201521088176U CN 205263201 U CN205263201 U CN 205263201U
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- core
- electric initiator
- contact
- bridge silk
- resistance
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Abstract
The utility model relates to an electric initiating ware tester, including the constant current source, the voltmeter, power amplifier, an analog to digital converter, a single -chip microcomputer, the display, the keyboard of being connected with the singlechip, double knives tribit change over switch, six -core aviation socket, six -core circular connector, electric initiating ware private jack, use the constant current source as the testing power supply, receive by on the survey resistance with two lines wherein, also have two sampling voltage contacts, survey the resistance both ends, there are test current and sampling voltage four -wire, the constant current source produces the constant current with on surveying resistance rx to the quilt, produce voltage drop ux, the constant current with to reference resistance RS, produces voltage drop US simultaneously. Ux and US are connected to the measuring junction and the reference edge of AD converter respectively after the amplifier enlargies, AD conversion result send the display to show. Change over switch is changeed through pulling the double knives tribit, the resistance resistance of two sets of bridge silks can be conveniently measured. The utility model discloses measurement accuracy is high, test procedure safe and reliable.
Description
Technical field
The utility model relates to fire-suppression bottle electric initiator detecting instrument in a kind of aircraft engine nacelle, is specially a kind of electric initiator tester, belongs to fire control product test detection technique.
Background technology
For ensureing aircraft safety, enging cabin is all provided with extinguishing device, one of extinguishing device capital equipment is exactly fire-suppression bottle, on fire-suppression bottle, have control assembly electric initiator, its effect is to receive after fire alarm as pilot, can operate fire extinguishing system by automatic or manual, send and ignite current start electric initiator, rupture disk on the fried broken fire-suppression bottle of electric initiator, plays fire extinguishing function thereby discharge extinguishing chemical, ensures aircraft safety. Fire-suppression bottle belongs to III class important parts, and the intact of electric initiator is prerequisite and the basis of guaranteeing the normal work of fire-suppression bottle, the flight safety of direct relation aircraft.
The operation principle of electric initiator is: reaches after certain numerical value when flowing through the electric current of bridge silk in electric initiator, and the explosive that ignites, thus make electric initiator blast. For guaranteeing the normal work of electric initiator, in electric initiator, installation two road and bridge silk, taps into respectively two road power supplys, as long as there is one group of bridge silk normal, electric initiator just can normally be worked, and reaches the object of electric initiator blast.
The quality of electric initiator, depends primarily on the bridge silk in electric initiator, the resistance of bridge silk, determine that can electric initiator detonate by the requirement of setting, therefore, judge the quality of an electric initiator, as long as measure the resistance of bridge silk in electric initiator. At present, on market, there is no the special test equipment for electric initiator, even if test the resistance of bridge silk in electric initiator, also be to measure with other instrument for measuring DC resistance, this method of testing, the resistance of two groups of bridge silks in electric initiator can not be tested easily, the resistance of two groups of bridge silks can not be measured more accurately. Because electric initiator is fire control product, there is certain danger, one is careless, just may set off an explosion, for guaranteeing test safety, tester and tester need be apart from electric initiator certain distances, therefore test cable line is longer, thereby cause test cable resistance larger; Secondly electric initiator jackshaft silk resistance value less (< 1 Ω), belong to small resistor, even possibility test cable resistance is all larger than the bridge wire resistance resistance of electric initiator own, has a strong impact on certainty of measurement, cannot correctly judge the quality of electric initiator.
Summary of the invention
In order to address the above problem, the utility model provides a kind of electric initiator tester, and certainty of measurement is high, and test process is safe and reliable.
For achieving the above object, concrete scheme of the present utility model is:
A kind of electric initiator tester, comprise constant-current source, reference resistance, reference resistance test voltage table, electric initiator bridge silk test voltage table, power amplifier, A/D converter, single-chip microcomputer, display, the keyboard being connected with single-chip microcomputer, double-pole three-postion switch, six core aviation sockets, six core aviation plugs, electric initiator private jack, one group of bridge silk and reference resistance that electric initiator is tested are connected with constant-current source, two inputs of reference resistance test voltage table are connected to the two ends of reference resistance, output and the power amplifier of reference resistance test voltage table, the reference edge serial connection of A/D converter, output and the power amplifier of electric initiator bridge silk test voltage table, the measuring junction serial connection of A/D converter, the output of A/D converter is connected with the input of single-chip microcomputer, the output of single-chip microcomputer is connected with display, voltage sample two inputs of electric initiator bridge silk test voltage table are connected at the two ends of one group of bridge silk tested with electric initiator respectively, the steady current excitation of the tested one group of bridge silk of electric initiator is rectified the utmost point and is connected with the 6th core of six core aviation sockets, the steady current excitation end negative pole of the tested one group of bridge silk of electric initiator is connected with second contact of the upper row of double-pole three-postion switch, the upper row's of double-pole three-postion switch the 3rd contact is connected with the second core of six core aviation sockets, first contact of the upper row of double-pole three-postion switch is connected with the four-core of six core aviation sockets, the electric initiator bridge silk test voltage table voltage sample input anode of the tested one group of bridge silk correspondence of electric initiator is connected with the 5th core of six core aviation sockets, the electric initiator bridge silk test voltage table voltage sample input cathode of the tested one group of bridge silk correspondence of electric initiator is connected with second contact of the lower row of double-pole three-postion switch, the lower row's of double-pole three-postion switch the 3rd contact is connected with the first core of six core aviation sockets, first contact of the lower row of double-pole three-postion switch is connected with the 3rd core of six core aviation sockets, electric initiator private jack is provided with the first contact, the second contact, the 3rd contact, the first contact while flowed into end with the steady current of two groups of bridge silks of electric initiator and is connected, the second contact is connected with the steady current outflow end of one group of bridge silk of electric initiator, the 3rd contact is connected with the steady current outflow end of another group bridge silk of electric initiator, the 5th core of six core aviation plugs, the 6th core is connected with the first contact of electric initiator private jack respectively, the first core of six core aviation plugs, the second core is connected with the second contact of electric initiator private jack respectively, the 3rd core of six core aviation plugs, four-core is connected with the 3rd contact of electric initiator private jack respectively, the position of six cores of six core aviation sockets is corresponding with the position of six cores of six core aviation plugs respectively.
Constant-current source is accurate small current constant-current source.
Power amplification circuit adopts quad405 current dump formula power amplifier.
Single-chip microcomputer adopts 89C52 single-chip microcomputer.
According to the requirement of electric initiator resistance meter, adopt conventional two-wire system voltammetry to measure, be impracticable certainly, must look for another way, adopt the method for measuring as basic four-wire system taking Kelvin bridge. The electric initiator resistance meter of our design, the method that adopts four-wire system to measure, taking accurate small current constant-current source as testing power supply, uses two lines wherein to receive in measured resistance. So no matter to have great contact resistance and lead resistance, the electric current flowing through in measured resistance is all constant. Also have in addition two sampling voltage contacts, because voltmeter input impedance is very high, therefore can think that two voltage leads do not have pressure drop, at measured resistance two ends, there are measuring current and sampling voltage four lines, therefore having great contact resistance and lead resistance is all also that it doesn't matter, can effectively eliminate the impact of test cable lead resistance and contact resistance.
Constant-current source produces steady current and is added to measured resistance Rx above, produces voltage drop Ux; It is upper that steady current is added to reference resistance RS simultaneously, produces voltage drop US. Ux and US are connected respectively to measuring junction and the reference edge of A/D converter after amplifier amplifies, and A/D transformation result send display to show. The steady current producing because of constant-current source is little electric current, can avoid causing because measuring current is excessive like this accidental explosion of electric initiator, has protected preferably tester and tester.
In order to detect quickly and easily two groups of bridge wire resistances in electric initiator, Instrument Design a double-pole three-postion switch, by operating switch, can measure easily the resistance of two groups of bridge silks in electric initiator; At instrument test output, the advantage of measuring in order to give full play to four-wire system, further improve certainty of measurement, adopt six core aviation sockets at instrument output, by steady current excitation be measuring current positive and negative end, voltage sample just, end output respectively, until just connect together at electric initiator private jack, effectively eliminate the impact of the lead resistance of test cable.
The steady current excitation end negative pole D-that tester produces is through one group of contact of double-pole three-postion switch and aviation plug, socket, to electric initiator private jack; Voltage sample end negative pole S-is through double-pole three-postion switch another group contact and aviation plug, socket, then to electric initiator private jack. Utmost point D+ is rectified in steady current excitation and voltage sample is rectified utmost point S+ without double-pole three-postion switch, and is directly connected to the common port of electric initiator two groups of bridge silk A-C, B-C by aviation plug, socket.
The beneficial effects of the utility model:
(1) electric initiator tester should detect two groups of bridge wire resistances in electric initiator quickly and easily, once twists good electric initiator, switches by circuit, tests two groups of bridge wire resistance resistances.
(2) electric initiator tester has current-limiting protection function, detects electric current and must be less than 40 milliamperes, guarantees electric initiator safety detection.
(3) electric initiator tester has zeroing function, effectively eliminates the impact of test cable lead resistance and contact resistance, improves certainty of measurement.
Brief description of the drawings
Fig. 1 is test philosophy block diagram of the present utility model.
Fig. 2 is the inner double-pole three-postion switch of tester and six core aviation socket wiring schematic diagrams.
Fig. 3 is the outside six core aviation plugs of tester and electric initiator private jack wiring schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1: referring to accompanying drawing 1～accompanying drawing 3, a kind of electric initiator tester, comprise accurate small current constant-current source, reference resistance Rs, reference resistance test voltage table, electric initiator bridge silk test voltage table, power amplifier, A/D converter, 89C52 single-chip microcomputer, display, the keyboard being connected with single-chip microcomputer, double-pole three-postion switch 1, six core aviation sockets 2, six core aviation plugs 3, electric initiator private jack 4, one group of bridge silk Rx and reference resistance Rs that electric initiator is tested connect with constant-current source, two inputs of reference resistance test voltage table are connected to the two ends of reference resistance Rs, output and the power amplifier of reference resistance test voltage table, the reference edge serial connection of A/D converter, output and the power amplifier of electric initiator bridge silk test voltage table, the measuring junction serial connection of A/D converter, the output of A/D converter is connected with the input of single-chip microcomputer, the output of single-chip microcomputer is connected with display.
Voltage sample two inputs of the electric initiator bridge silk test voltage table respectively two ends of the one group bridge silk Rx tested with electric initiator are connected, the steady current excitation of the tested one group of bridge silk Rx of electric initiator is rectified utmost point D+ and is connected with the 6th core f of six core aviation sockets 2, the steady current excitation end negative pole D-of the tested one group of bridge silk Rx of electric initiator is connected with second contact of the upper row of double-pole three-postion switch 1, the upper row's of double-pole three-postion switch 1 the 3rd contact is connected with the second core b of six core aviation sockets 2, first contact of the upper row of double-pole three-postion switch 1 is connected with the four-core d of six core aviation sockets 2, tested electric initiator bridge silk test voltage table voltage sample input anode S+ corresponding to one group of bridge silk Rx of electric initiator is connected with the 5th core e of six core aviation sockets 2, tested electric initiator bridge silk test voltage table voltage sample input cathode S-corresponding to one group of bridge silk Rx of electric initiator is connected with second contact of the lower row of double-pole three-postion switch 1, the lower row's of double-pole three-postion switch 1 the 3rd contact is connected with the first core a of six core aviation sockets 2, first contact of the lower row of double-pole three-postion switch 1 is connected with the 3rd core c of six core aviation sockets 2.
Electric initiator private jack 4 is provided with the first contact C, the second contact A, the 3rd contact B, the first contact C simultaneously with two groups of bridge silk A-C of electric initiator, the steady current of B-C flows into end and connects, the second contact A is connected with the steady current outflow end of one group of bridge silk A-C of electric initiator, the 3rd contact B is connected with the steady current outflow end of another group bridge silk B-C of electric initiator, the 5th core e of six core aviation plugs 3, the 6th core f is connected with the first contact C of electric initiator private jack 4 respectively, the first core a of six core aviation plugs 3, the second core b is connected with the second contact A of electric initiator private jack 4 respectively, the 3rd core c of six core aviation plugs 3, four-core d is connected with the 3rd contact B of electric initiator private jack 4 respectively, the position of six cores of six core aviation sockets 2 is corresponding with the position of six cores of six core aviation plugs 3 respectively.
Power amplification circuit adopts quad405 current dump formula power amplifier.
Constant-current source produces steady current and is added to measured resistance Rx above, produces voltage drop Ux; It is upper that steady current is added to reference resistance RS simultaneously, produces voltage drop US. Ux and US are connected respectively to measuring junction and the reference edge of A/D converter after amplifier amplifies, and A/D transformation result send display to show. The steady current producing because of constant-current source is little electric current, can avoid causing because measuring current is excessive like this accidental explosion of electric initiator, has protected preferably tester and tester.
In the time will testing the bridge silk of electric initiator, six core aviation plugs 3 of instrument are plugged on six core aviation sockets 2, in the time of test electric initiator bridge silk A-C resistance, connect one group, 1 the right of double-pole three-postion switch switch, steady current excitation is rectified utmost point D+ and is directly connected on the 6th core f of six core aviation sockets 2, voltage sample input anode S+ is directly connected on the 5th core e of six core aviation sockets 2, steady current excitation end negative pole D-is by double-pole three-postion switch 1 above second, the 3rd contact is connected on the second core b of six core aviation sockets 2, voltage sample input cathode S-is by double-pole three-postion switch 1 below second, the 3rd contact is connected on the first core a of six core aviation sockets 2, in the time of test electric initiator bridge silk B-C resistance, switch double-pole three-postion switch 1, connect one group, left side switch, steady current excitation is rectified utmost point D+ and is still directly connected on the 6th core f of six core aviation sockets 2, voltage sample input anode S+ is also directly connected on the 5th core e of six core aviation sockets 2, for steady current excitation end negative pole D-by double-pole three-postion switch 1 above first, the second contact is connected on the four-core d of six core aviation sockets 2, voltage sample input cathode S-crosses double-pole three-postion switch 1 first below, the second contact is connected on the 3rd core c of six core aviation sockets 2, all test leads are connected with six core aviation sockets 2 by six core aviation plugs 3, six wire output, until just connect together 4 li of electric initiator private jacks, and all lead resistances and contact resistance before connecing affect hardly on test result, only only have electric initiator private jack 4 and the contact resistance of electric initiator just can affect certainty of measurement. in the time will testing electric initiator bridge silk A-C resistance and electric initiator bridge silk B-C resistance, as long as switch easily double-pole three-postion switch 1, just can measure respectively. in the time changing different electric initiators, without closing tester, as long as double-pole three-postion switch 1 is placed on to centre position, can not affect like this certainty of measurement.
Claims (4)
1. an electric initiator tester, it is characterized in that: comprise constant-current source, reference resistance, reference resistance test voltage table, electric initiator bridge silk test voltage table, power amplifier, A/D converter, single-chip microcomputer, charactron, the keyboard being connected with single-chip microcomputer, double-pole three-postion switch, six core aviation sockets, six core aviation plugs, electric initiator private jack, one group of bridge silk and reference resistance that electric initiator is tested are connected with constant-current source, two inputs of reference resistance test voltage table are connected to the two ends of reference resistance, output and the power amplifier of reference resistance test voltage table, the reference edge serial connection of A/D converter, output and the power amplifier of electric initiator bridge silk test voltage table, the measuring junction serial connection of A/D converter, the output of A/D converter is connected with the input of single-chip microcomputer, the output of single-chip microcomputer is connected with display, voltage sample two inputs of electric initiator bridge silk test voltage table are connected at the two ends of one group of bridge silk tested with electric initiator respectively, the steady current excitation of the tested one group of bridge silk of electric initiator is rectified the utmost point and is connected with the 6th core of six core aviation sockets, the steady current excitation end negative pole of the tested one group of bridge silk of electric initiator is connected with second contact of the upper row of double-pole three-postion switch, the upper row's of double-pole three-postion switch the 3rd contact is connected with the second core of six core aviation sockets, first contact of the upper row of double-pole three-postion switch is connected with the four-core of six core aviation sockets, the electric initiator bridge silk test voltage table voltage sample input anode of the tested one group of bridge silk correspondence of electric initiator is connected with the 5th core of six core aviation sockets, the electric initiator bridge silk test voltage table voltage sample input cathode of the tested one group of bridge silk correspondence of electric initiator is connected with second contact of the lower row of double-pole three-postion switch, the lower row's of double-pole three-postion switch the 3rd contact is connected with the first core of six core aviation sockets, first contact of the lower row of double-pole three-postion switch is connected with the 3rd core of six core aviation sockets, electric initiator private jack is provided with the first contact, the second contact, the 3rd contact, the first contact while flowed into end with the steady current of two groups of bridge silks of electric initiator and is connected, the second contact is connected with the steady current outflow end of one group of bridge silk of electric initiator, the 3rd contact is connected with the steady current outflow end of another group bridge silk of electric initiator, the 5th core of six core aviation plugs, the 6th core is connected with the first contact of electric initiator private jack respectively, the first core of six core aviation plugs, the second core is connected with the second contact of electric initiator private jack respectively, the 3rd core of six core aviation plugs, four-core is connected with the 3rd contact of electric initiator private jack respectively, the position of six cores of six core aviation sockets is corresponding with the position of six cores of six core aviation plugs respectively.
2. electric initiator tester according to claim 1, is characterized in that: constant-current source is accurate small current constant-current source.
3. electric initiator tester according to claim 2, is characterized in that: power amplification circuit adopts quad405 current dump formula power amplifier.
4. electric initiator tester according to claim 3, is characterized in that: single-chip microcomputer adopts 89C52 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088176.3U CN205263201U (en) | 2015-12-23 | 2015-12-23 | Electric initiating ware tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088176.3U CN205263201U (en) | 2015-12-23 | 2015-12-23 | Electric initiating ware tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205263201U true CN205263201U (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521088176.3U Expired - Fee Related CN205263201U (en) | 2015-12-23 | 2015-12-23 | Electric initiating ware tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN205263201U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207634A (en) * | 2020-03-18 | 2020-05-29 | 融硅思创(北京)科技有限公司 | Digital electronic detonator chip with resistance detection function and resistance detection method |
| CN111366054A (en) * | 2020-03-20 | 2020-07-03 | 中国人民解放军陆军装甲兵学院士官学校 | Electric detonator detecting and destroying device of portable automatic fire extinguishing and explosion suppression device |
| CN112098767A (en) * | 2020-11-18 | 2020-12-18 | 北京天创凯睿科技有限公司 | Safety detection circuit of ignition device and safety detection equipment of ignition device |
| CN113009252A (en) * | 2021-02-25 | 2021-06-22 | 航天科工空间工程发展有限公司 | Aircraft initiating explosive device detonation control and monitoring circuit |
| CN117517789A (en) * | 2024-01-03 | 2024-02-06 | 上海芯跳科技有限公司 | Electronic detonator bridge wire measuring circuit and method thereof |
-
2015
- 2015-12-23 CN CN201521088176.3U patent/CN205263201U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207634A (en) * | 2020-03-18 | 2020-05-29 | 融硅思创(北京)科技有限公司 | Digital electronic detonator chip with resistance detection function and resistance detection method |
| CN111366054A (en) * | 2020-03-20 | 2020-07-03 | 中国人民解放军陆军装甲兵学院士官学校 | Electric detonator detecting and destroying device of portable automatic fire extinguishing and explosion suppression device |
| CN112098767A (en) * | 2020-11-18 | 2020-12-18 | 北京天创凯睿科技有限公司 | Safety detection circuit of ignition device and safety detection equipment of ignition device |
| CN112098767B (en) * | 2020-11-18 | 2021-03-05 | 北京天创凯睿科技有限公司 | Safety detection circuit of ignition device and safety detection equipment of ignition device |
| CN113009252A (en) * | 2021-02-25 | 2021-06-22 | 航天科工空间工程发展有限公司 | Aircraft initiating explosive device detonation control and monitoring circuit |
| CN117517789A (en) * | 2024-01-03 | 2024-02-06 | 上海芯跳科技有限公司 | Electronic detonator bridge wire measuring circuit and method thereof |
| CN117517789B (en) * | 2024-01-03 | 2024-04-16 | 上海芯跳科技有限公司 | Electronic detonator bridge wire measuring circuit and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160525 Termination date: 20161223 |