CN1077279A - Safety detector for bridge wire ignition resistance of detonator - Google Patents
Safety detector for bridge wire ignition resistance of detonator Download PDFInfo
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- CN1077279A CN1077279A CN 92102280 CN92102280A CN1077279A CN 1077279 A CN1077279 A CN 1077279A CN 92102280 CN92102280 CN 92102280 CN 92102280 A CN92102280 A CN 92102280A CN 1077279 A CN1077279 A CN 1077279A
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- circuit
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- safety
- detonator
- detonators
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Abstract
The invention relates to a safety detector for common bridge wire type electric detonators and bridge wire type electromagnetic detonators firing resistors, which is characterized in that a double-power frequency (100 hertz) sharp pulse is adopted to pass through a small double-hole (or single-hole) double-winding manganese-zinc ferrite safety conversion circuit, a peak detection circuit, a signal amplification circuit, a resistance value display circuit and a 9V laminated direct-current power supply to form a safety detector for the bridge wire type electric detonators firing resistors. The instrument can meet the requirement of safety detection of bridge wire ignition resistance of electric detonators or electromagnetic detonators in electric detonator factories and blasting construction places.
Description
The present invention is a kind of bridge wire ignition resistance of electric detonator safety detector, belongs to the F42 class scope of International Patent Classification (IPC), is mainly used in electric cap factory, safety detection is carried out to the polytype bridge wire ignition resistance of electric detonator in each blasting engineering place.
The domestic and international at present measurement to bridge wire ignition resistance of electric detonator mainly is to adopt ohmmeter (or explosion electric bridge) to carry out wiring, and directly energising is measured, and detecting electric current can be up to the 30-50 milliampere.Advanced Austrian DIGOHM type digital ohm meter also is that directly energising detects, and it detects electric current and reaches 4 milliamperes, but it not tool detect the ability of electromagnetic detonators.
The Ю that No. 123441, Soviet Union's certificate of invention-140 type common electrical detonator fault instrument also is that directly energising detects, it detects electric current and is no more than 300 μ A, but it can not be quantitative detection detonator bridge wire resistance, be a kind of optical signal display instrument, can only judge the break-make situation of bridge silk.
The loop-circuit resistance tester that No. the 5031st, Chinese invention patent can only detect the loop resitance of common electrical detonator and electromagnetic detonators, just can't not detect if do not form closed circuit.
The bridge resistance measuring device for auget of Chinese patent application numbers 891076026, it is the instrument that utilizes traditional little dutycycle principle, can only detect a kind of incorporate bridge wire of electric detonator resistance of novel high-frequency transformer of preset parameter, not energy measurement common electrical detonator and electromagnetic detonators bridge wire resistance, limitation is big.
In order fundamentally to solve the safety detection of polytype detonator bridge wire resistance, the special proposition small-sized portable type bridge wire ignition resistance of electric detonator safety detector with two times of power frequency spikes of small-sized diplopore (or single hole) manganese-zinc ferrite security transformation circuit of the present invention.
Bridge wire ignition resistance of electric detonator safety detector of the present invention, shown in block diagram in Fig. 1 dot-dash wire frame, form circuit (1), amplifying circuit (2), two times of power frequency manganese-zinc ferrite double winding security transformation circuit (3), peak detection circuit (4), amplification display circuit (5), mu balanced circuit (6), under-voltage circuit (7) and 9 volts of laminated power supplys (8) by two times of power frequency spikes and formed.
After invention is characterised in that and adopts two times of power frequencies (100 He Zhi) spike to connect by small-sized diplopore (or single hole) manganese-zinc ferrite double winding security transformation circuit (3) and bridge wire of electric detonator circuit (9) or electromagnetic detonators bridge silk circuit camera, through the safety detector for bridge wire ignition resistance of detonator that peak detection circuit (4), amplification display circuit (5), (6), (7) and (8) are formed, its principal diagram is in Fig. 2.
The structure of two times of power frequency (100 He Zhi) manganese-zinc ferrite double winding security transformation circuit (3) is made up of diplopore (or single hole) manganese-zinc ferrite (14), elementary winding (15) and secondary windings (16) as shown in Figure 3.
Bridge wire ignition resistance of electric detonator safety detector of the present invention is to be applied on the safety detection of bridge wire of electric detonator resistance according to the anti-electric safety philosophy of the electric cap of Chinese patent 87103475A and 90202672.0, i.e. induction transmission according to diplopore (or single hole) double winding manganese-zinc ferrite has frequency selective characteristic, shown in the manganese-zinc ferrite frequency transmission characteristic of Fig. 4, it is to the frequency response extreme difference below 1000 He Zhi, its efficient is 3%, power frequency is when 100 He Zhi are following, then safety can not transmission current (according to " Japanese mining industry meeting will " 1985, № 1172), i.e. 100 He Zhi current i
1During elementary winding (14) by Fig. 3, with the current i that flows in the secondary windings that bridge wire of electric detonator links to each other
2Bridge silk ignition resistance is not constituted harm, and detector of the present invention utilizes safety two times of power frequencies (100 He Zhi) electric current by diplopore (or single hole) double winding manganese-zinc ferrite security transformation circuit (3) bridge wire ignition resistance of electric detonator to be carried out safety detection.
Testing process as shown in Figure 5, the bipod line end (18) of electric cap (17) is received C, the D end of winding (16), form circuit (1), amplifying circuit (2) when defeated-100 He Zhi electric currents of winding (15) by two times of power frequency spikes, on the one hand in the circuit that the winding (16) and the bridge wire resistance (19) of electric cap (17) are formed, variation along with the bridge wire resistance value, can reflect proportional amplitude voltage at A, B end and change, this voltage demonstrates the resistance of bridge wire resistance linearly by circuit (4), (5); On the other hand when voltage waveform (20) by double power frequency (100 He Zhi) of the winding (15) of manganese-zinc ferrite translation circuit (3), the voltage waveform (21) that induces in the circuit that the winding (16) and the bridge silk ignition resistance (19) of electric cap (17) are formed is the wire pulse that is interrupted, its amplitude is 280 millivolts, and it is far smaller than 0.8A
2.ms as seen ignite 1000 times of momentum, utilize this principle to detect the bridge silk and get angry resistance and be perfectly safe.
The present invention in like manner can detect electromagnetic detonators (22), and as shown in Figure 6, it is that oncontacting is brought the detection of ring type linear resistance out into the open.
Detector of the present invention has fundamentally solved the linear safety detection problem of polytype bridge wire ignition resistance of electric detonator.Its volume is little, is easy to carry, the safety detection of the electric cap when being suitable for mine and engineering electric blasting, electromagnetic detonators and empty payment to a porter safe electric detonator ignition bridge wire resistance.
Claims (1)
1, the present invention is formed circuit [1], amplifying circuit [2], two times of power frequency manganese-zinc ferrite double winding security transformation circuit [3], peak detection circuit [4], is amplified display circuit [5], mu balanced circuit [6], under-voltage circuit [7] and 9 volts of laminated power supplys [8] and formed by spike.It is characterized in that adopting two times of power frequencies (100 He Zhi) spike to pass through the testing circuit that small-sized diplopore (or single hole) manganese-zinc ferrite double winding security transformation circuit [3] links to each other with bridge wire of electric detonator circuit [9].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102280 CN1077279A (en) | 1992-04-09 | 1992-04-09 | Safety detector for bridge wire ignition resistance of detonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102280 CN1077279A (en) | 1992-04-09 | 1992-04-09 | Safety detector for bridge wire ignition resistance of detonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1077279A true CN1077279A (en) | 1993-10-13 |
Family
ID=4939559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92102280 Pending CN1077279A (en) | 1992-04-09 | 1992-04-09 | Safety detector for bridge wire ignition resistance of detonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1077279A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119351C (en) * | 1996-04-06 | 2003-08-27 | 默克专利股份有限公司 | Cyclic adhesion inhibitors |
| CN103292646A (en) * | 2013-06-04 | 2013-09-11 | 云南数芯科技发展有限公司 | Method for detecting on-off state of bridge wire of electronic password detonator |
| CN106440978A (en) * | 2016-11-23 | 2017-02-22 | 中国电子科技集团公司第五十四研究所 | Electronic detonator bridge-wire detecting circuit and method |
| CN108646110A (en) * | 2018-05-10 | 2018-10-12 | 中国人民解放军陆军工程大学 | Method for testing and evaluating safety margin of strong-field electromagnetic radiation of actual electric explosion device |
| CN112816095A (en) * | 2021-01-04 | 2021-05-18 | 北京理工大学 | Bridge wire temperature testing system and testing method for ignition of electric explosion device under battery pulse action |
-
1992
- 1992-04-09 CN CN 92102280 patent/CN1077279A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119351C (en) * | 1996-04-06 | 2003-08-27 | 默克专利股份有限公司 | Cyclic adhesion inhibitors |
| CN103292646A (en) * | 2013-06-04 | 2013-09-11 | 云南数芯科技发展有限公司 | Method for detecting on-off state of bridge wire of electronic password detonator |
| CN106440978A (en) * | 2016-11-23 | 2017-02-22 | 中国电子科技集团公司第五十四研究所 | Electronic detonator bridge-wire detecting circuit and method |
| CN106440978B (en) * | 2016-11-23 | 2018-03-30 | 中国电子科技集团公司第五十四研究所 | Electronic detonator bridge wire detects circuit and detection method |
| CN108646110A (en) * | 2018-05-10 | 2018-10-12 | 中国人民解放军陆军工程大学 | Method for testing and evaluating safety margin of strong-field electromagnetic radiation of actual electric explosion device |
| CN108646110B (en) * | 2018-05-10 | 2020-08-18 | 中国人民解放军陆军工程大学 | A test and evaluation method for the safety margin of strong field electromagnetic radiation of a mounted electric explosion device |
| CN112816095A (en) * | 2021-01-04 | 2021-05-18 | 北京理工大学 | Bridge wire temperature testing system and testing method for ignition of electric explosion device under battery pulse action |
| CN112816095B (en) * | 2021-01-04 | 2021-11-02 | 北京理工大学 | Test system and test method for bridge wire temperature when electric explosion device is fired under the action of electromagnetic pulse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |