CN114061386B - MOEMS fuze safety device with state monitoring - Google Patents
MOEMS fuze safety device with state monitoring Download PDFInfo
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- CN114061386B CN114061386B CN202111364119.3A CN202111364119A CN114061386B CN 114061386 B CN114061386 B CN 114061386B CN 202111364119 A CN202111364119 A CN 202111364119A CN 114061386 B CN114061386 B CN 114061386B
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- optical fiber
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- feedback unit
- locking mechanism
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/40—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected electrically
Abstract
The invention discloses a MOEMS fuze safety device with state monitoring, which comprises a basal layer, a structural layer and an optical fiber group, wherein the structural layer and the optical fiber group are arranged on the basal layer; the structural layer is fixed on the basal layer through a supporting anchor point; the optical fiber group is provided with an input end and an output end; a staggered position and an aligned position are arranged between the input end and the output end, and the staggered position is arranged in a safety state; the structure layer comprises an optical fiber driver, a driver locking mechanism, a reverse locking mechanism, a driver locking state feedback unit, an optical path on-off state feedback unit and a reverse locking state feedback unit; the surface of the supporting anchor point is sputtered with a metal film for connecting the lead wire into a peripheral circuit. The invention improves the safety of the MOEMS fuze safety solution system in a non-standby state and the integral reliability of equipment, and can carry out black box test on the MOEMS fuze safety solution device in a non-visual environment, thereby enriching the test means of the MOEMS fuze safety solution system.
Description
Technical Field
The invention belongs to the field of micro-mechanical electronics, and particularly relates to a MOEMS fuze safety device with state monitoring.
Background
The conventional electronic detonator safety system usually adopts an impact electric detonator as a primary detonating element, and although the development of the detonator safety system from a detonating type to a non-detonating type is realized, in practical application, the strong pulse electromagnetic interference caused by a high-voltage conversion circuit, the electrostatic interference caused by charging of a firing capacitor, the harmonic interference caused by external static electricity, lightning, radio frequency and high-altitude electromagnetic pulse and the like can cause abnormal or even damage of part of electronic circuits in the system, and other detonating points fail or act prematurely. The laser detonation is used as a novel detonation mode, and as the detonated initiating explosive device is a permitted insensitive initiating explosive device, an explosion-proof mechanism is not required to be arranged between ignition channels.
The novel micro-optical electro-mechanical system (MOEMS) fuse safety system designed for the laser initiation system inherits the characteristics of high safety, strong applicability, high reliability, small volume, rapid action, easiness in testability, multipoint synchronous sequential initiation and the like of the traditional electronic fuse safety system, and meets the requirements of improving the electromagnetic interference resistance of intelligent ammunition. The invention mainly uses the MOEMS fuze safety system as an application background, and can be applied to other detonating modes through redesigning structural parameters.
The fuse failure result is particularly serious, so that the safety problem is always the primary problem of the fuse, and the safety of the fuse can be effectively improved by realizing the real-time monitoring of the state of the fuse safety system. In recent years, the recovery function of the safe state of the fuze at home and abroad is more and more important, and the recoverable function of the safe state is not only a new requirement of the modern fuze on the 'safe' function, but also one of the cut-in points of intelligent development of the fuze in the future, so that the reliability of the recoverable fuze can be effectively improved by realizing the real-time monitoring of the safe system state of the fuze. In 2019, a locking type MOEMS fuse safety mechanism proposed by the western security university Liu Jiakai et al realizes higher functional integration of the fuse safety mechanism under the condition of tiny volume, but is in open loop control, and when the fuse safety mechanism does not realize a preset function or is triggered by mistake to release the safety state, the safety and reliability of the fuse safety system cannot be ensured.
Disclosure of Invention
The invention aims to provide a MOEMS fuse safety device with state monitoring, so as to improve the reliability and safety of a fuse safety system and provide experimental data for dynamic test of the fuse safety system.
The technical solution for realizing the purpose of the invention is as follows:
the MOEMS fuze safety device with the state monitoring function comprises a basal layer, a structural layer and an optical fiber group, wherein the structural layer and the optical fiber group are arranged on the basal layer;
the structural layer is fixed on the basal layer through a supporting anchor point;
the optical fiber group is provided with an input end and an output end; a staggered position and an aligned position are arranged between the input end and the output end, and the staggered position is arranged in a safety state;
the structural layer comprises:
the optical fiber driver is used for pushing the lower optical fiber group to be in an alignment position in an electrified state;
the driver locking mechanism is used for locking and unlocking the optical fiber driver and comprises locking the optical fiber driver when the optical fiber group is in a staggered position and locking the optical fiber driver when the optical fiber driver pushes the optical fiber group to be in an aligned position;
the reverse locking mechanism is used for locking the staggered position of the optical fiber group and unlocking the optical fiber group in an electrified state;
the driver locking state feedback unit is used for generating an output signal by matching with the driver locking mechanism to monitor the state of the driver locking mechanism;
the optical path on-off state feedback unit is used for being matched with the optical fiber driver to form a loop or not to generate an output signal so as to monitor the on-off state of the optical fiber group;
and the reverse locking state feedback unit is used for generating an output signal by cooperating with the reverse locking mechanism to monitor the state of the reverse locking mechanism.
A MOEMS fuze safety device with status monitoring, the status monitoring method thereof comprising:
in the initial state, one side of the optical path on-off state feedback unit is connected with a detection power supply, the rest is in a power-off state, the optical fiber groups are in staggered positions, the reverse locking state feedback unit, the driver locking signal feedback unit and the optical path on-off state feedback unit do not have electric signal output, the feedback optical fiber output end does not have electric energy output, and the fuse safety device is monitored to be in a safe state;
under the condition that the optical fiber group is in a staggered position, if the laser source is started by mistake, the laser is emitted to the optical power meter, and if the optical power meter measures the laser energy in a non-test state, the optical power meter feeds back a closing signal to the laser source to close the laser source;
recognizing first environmental information, electrifying a driver locking mechanism to unlock the optical fiber driver, enabling the driver locking mechanism to be in contact with a driver locking state feedback unit, and enabling the driver locking state feedback unit to output an electric signal to monitor that the driver locking mechanism is in an unlocking state;
recognizing the second environmental information, electrifying a reverse locking mechanism to unlock the output end of the input optical fiber, enabling the reverse locking mechanism to be in contact with a reverse locking state feedback unit, and outputting an electric signal by the reverse locking state feedback unit, wherein the reverse locking state feedback unit monitors that the reverse locking mechanism is in an unlocking state;
then the optical fiber group is in an alignment position, the optical fiber driver is in contact with the optical path on-off state feedback unit, and the optical path on-off state feedback unit outputs an electric signal, so that the optical path is monitored to be in a conducting state;
the locking of the optical fiber driver is completed by the power-off of the driver locking mechanism, the driver locking mechanism is separated from the driver locking state feedback unit, and the driver locking state feedback unit outputs no electric signal and monitors that the driver locking mechanism is in a locking state;
the optical fiber driver is powered off, the driver locking mechanism keeps locking the optical fiber driver, the optical path on-off state feedback unit keeps outputting an electric signal, and the optical path is monitored to be kept in a conducting state;
the reverse locking mechanism is powered off to lock the output end of the input optical fiber, the reverse locking mechanism is in contact with the reverse locking state feedback unit, the reverse locking state feedback unit outputs no electric signal, and the reverse locking mechanism is monitored to be in a locking state;
at the moment, all parts of the device are in a power-off state, the input optical fiber output end is in an alignment position, the reverse locking state feedback unit and the driver locking state feedback unit do not output electrical signals, the optical path on-off state feedback unit outputs electrical signals, and the fuse safety releasing device is monitored to be in a releasing and protecting state.
Compared with the prior art, the invention has the remarkable advantages that:
(1) According to the invention, the state monitoring unit is added into the MOEMS fuse security device, the optical path on-off feedback unit judges the relative positions of the input optical fiber and the output optical fiber, and the feedback optical fiber with the optical power meter connected with the output end ensures the standby state of the laser in the non-standby state, so that the security of the fuse security system in the non-standby state is ensured;
(2) According to the invention, whether each locking mechanism is unlocked in place is judged by collecting the electric signals from each locking state feedback unit, and whether the output end of the input optical fiber moves in place is judged by collecting the electric signals from the optical path on-off state feedback unit, so that the reliability of the device is improved;
(3) The invention allows the disassembly and assembly function test to be carried out before final assembly, and the black box test is carried out on the fuze safety device in a non-visual environment, so that the test means of the fuze safety system are enriched; the time required by the on-off of the optical path can be obtained by collecting the data of the optical power of the output end of the feedback optical fiber or the time from the start of the power on of the optical fiber driver to the acquisition of the signal of the optical path on-off state feedback unit, and the timely detonation of the explosive can be realized after calibration.
Drawings
Fig. 1 is a three-dimensional model structure diagram of a MOEMS fuze safety solution device.
Fig. 2 is a schematic diagram of the initial (secure) state of the MOEMS fuse security device.
Fig. 3 is an enlarged view of the structure of the MOEMS fuse unlocking device driver locking mechanism unlocking and its feedback unit.
Fig. 4 is an enlarged view of the structure of the optical fiber driver and the optical path on-off feedback unit of the MOEMS fuze safety device.
Fig. 5 is an enlarged view of the structure of the reverse locking mechanism unlocking and feedback unit of the MOEMS fuse unlocking device.
Fig. 6 is an enlarged view of the structure of the U-shaped and V-shaped electrothermal drivers of the MOEMS fuze safety device.
Fig. 7 is a schematic diagram of the operation of the MOEMS fuse unlocking device driver locking mechanism and its feedback unit.
Fig. 8 is a schematic diagram of the operation of the reverse locking mechanism unlocking and feedback unit of the MOEMS fuse unlocking device.
Fig. 9 is a schematic diagram of the operation of the optical fiber driver and the optical path on-off feedback unit of the MOEMS fuze safety device.
Fig. 10 is a schematic diagram of the protection state of the MOEMS fuse protection device.
Fig. 11 is a timing chart of applying voltage and output voltage of each feedback unit to the MOEMS fuse security device when the device is changed from the initial (secure) state to the security release state.
Fig. 12 is a timing chart of applying voltage and output voltage of each feedback unit to the MOEMS fuse security device when the device is switched from the security state to the protection state.
Detailed Description
The invention is further described with reference to the drawings and specific embodiments.
Referring to fig. 1-7, a MOEMS fuse security device with status monitoring in this embodiment includes a frame layer 1, an optical fiber group 2, a structural layer 3, a support anchor point 4, and a substrate layer 5;
the frame layer 1 is directly bonded to the base layer 5; the frame layer 1 comprises an outer frame 1-1, an inner frame 1-2 and a limiting unit 1-3; the outer frame 1-1 is arranged on the periphery of the structural layer 3 and is used for providing the fixing position of the optical fiber group 2, improving the processing quality of the structural layer 3 and reducing the processing etching amount; the limiting unit 1-3 is composed of three limiting blocks, wherein two limiting blocks are symmetrically arranged at the left side and the right side of a push rod of the optical fiber driver 3-4 and used for limiting the swing of the optical fiber driver 3-4 perpendicular to the plane of the structural layer 3, one limiting block is arranged at the side of the optical fiber driver 3-4 in the-X direction (shown in figure 2) and used for limiting the reverse travel of the optical fiber driver 3-4, so that the optical fiber driver 3-4 can only move towards the optical fiber group 2; the inner frame 1-2 is used for improving the processing quality of the structural layer 3 and reducing the processing amount.
The optical fiber group 2 comprises an input optical fiber 2-3, an output optical fiber 2-1 and a feedback optical fiber 2-2; a staggered position and an aligned position are arranged between the output end of the input optical fiber 2-3 and the input end of the output optical fiber 2-1; the output end of the input optical fiber 2-3 is kept staggered with the input end of the output optical fiber 2-1 when the device is in a safe state, and is kept aligned with the input end of the output optical fiber 2-1 when the device is in a disarmed state; the input end of the input optical fiber 2-3 is coupled with a laser generator, and the output end of the output optical fiber 2-1 is coupled with a laser initiator; the feedback optical fiber 2-2 is always positioned on the parallel side of the input optical fiber 2-3 when the device is in a safe state, the output end of the feedback optical fiber 2-2 is coupled with the optical power meter and is used for monitoring the position change of the output end of the input optical fiber 2-3 in real time, and the laser generator is turned off in time when the optical power is acquired due to the false start of the laser generator in a non-priming state; the optical fiber group 2 is embedded in the outer frame 1-1.
The structure layer 3 comprises a driver locking state feedback unit 3-1, a driver locking mechanism 3-2, an optical path on-off state feedback unit 3-3, an optical fiber driver 3-4, a reverse locking mechanism 3-5 and a reverse locking state feedback unit 3-6; the driver locking state feedback unit 3-1 is located at the side of the movement direction of the driver locking mechanism 3-2 and symmetrically arranged along the X axis, the driver locking state feedback unit 3-1 is composed of a first cantilever beam 3-11 with a first circular contact 3-10 and a first supporting anchor point 3-12, and when the driver locking mechanism 3-2 releases the locking of the optical fiber driver 3-4, the driver locking mechanism 3-2 and the first circular contact 3-11 on the second cantilever beam 3-12 of the driver locking state feedback unit 3-1 keep mutual contact; the driver locking mechanism 3-2 is composed of two first U-shaped electrothermal drivers 3-20 and a latch structure 3-23, wherein the two first U-shaped electrothermal drivers 3-20 share a second supporting anchor point 3-21, voltage (or ground) is applied to the second supporting anchor point 3-21, the two first U-shaped electrothermal drivers 3-20 are respectively provided with a third supporting anchor point 3-22, the two supporting anchor points 3-22 are grounded (or voltage is applied), the latch structure 3-23 is arranged and fixedly connected on the two U-shaped drivers, and is matched with the latch structure 3-42 on the optical fiber driver 3-4, so as to unlock and lock the position of the optical fiber driver 3-4, wherein the locking: the fuse safety releasing mechanism is used for locking the position of the optical fiber driver 3-4 in a safety state and releasing the safety so as to lock the position of the optical fiber driver 3-4 in a light path conducting state; the optical fiber driver 3-4 consists of two second U-shaped electrothermal drivers 3-40, two beams 3-41, one push rod 3-43, two second cantilever beams 3-45 with second circular contacts 3-46 and a latch structure 3-42, wherein the two second U-shaped electrothermal drivers 3-40, the two beams 3-41 and the two second cantilever beams 3-45 with the second circular contacts 3-46 are symmetrically arranged at the left side and the right side of the push rod 3-43, the push rod 3-43 is connected with the U-shaped electrothermal drivers 3-40 through the beams 3-41, the two second U-shaped electrothermal drivers 3-40 are respectively provided with two fourth supporting anchor points 3-44 for loading voltage, the push rod 3-43 generates displacement along the radial direction of an optical fiber under the limitation of the limiting unit 1-3, the push rod 3-43 is contacted with the side wall of the output end of the input optical fiber 2-3, the output end of the input optical fiber 2-3 generates displacement along the radial direction under the driving of the optical fiber driver 3-4, the latch structure 3-42 is symmetrically fixedly connected with the push rod 3-43, and the latch structure 2-43 is matched with the push rod 2-3 in a locking mechanism; the optical path on-off state feedback unit 3-3 consists of a third cantilever beam 3-30 with a third circular contact 3-32 and a fifth supporting anchor point 3-31, is positioned at the moving direction side of the optical fiber driver 3-4 and is symmetrically arranged along the X axis, and when the optical fiber driver 3-4 pushes the output end of the input optical fiber 2-3 to an alignment position, the second cantilever beam 3-45 with the second circular contact 3-46 of the optical fiber driver 3-4 and the optical path on-off state feedback unit 3-3 are kept in contact with each other by the third cantilever beam 3-30 with the third circular contact 3-32; the reverse locking mechanism 3-5 consists of a V-shaped electrothermal driver 3-51 and two fourth cantilever beams 3-53 with fourth round contacts 3-52, the two fourth cantilever beams 3-53 with the fourth round contacts 3-52 are symmetrically arranged on two sides of the V-shaped electrothermal driver 3-51, two ends of the V-shaped electrothermal driver 3-51 are respectively provided with a sixth supporting anchor point 3-50 for loading voltage, the reverse locking mechanism 3-5 is used for unlocking and locking the staggered position and the aligned position of the output end of the input optical fiber 2-3, and the unlocking means that the reverse locking mechanism 3-5 generates enough displacement under the electrified state so that the output end of the input optical fiber 2-3 can be freely switched between the staggered position and the aligned position; the reverse locking state feedback unit 3-6 is composed of a fifth cantilever beam 3-61 with a fifth circular contact 3-60 and a seventh supporting anchor point 3-62, and is located at the moving direction side of the reverse locking mechanism 3-5 and symmetrically arranged along the X axis, when the reverse locking mechanism 3-5 releases the locking of the output end of the input optical fiber 2-3, the fourth cantilever beam 3-53 with the fourth circular contact 3-52 of the reverse locking mechanism 3-5 and the fifth cantilever beam 3-61 with the fifth circular contact 3-60 of the reverse locking state feedback unit 3-6 keep mutual contact.
The driving principle of the first U-shaped electrothermal driver 3-20 and the second U-shaped electrothermal driver 3-40 is as follows: under the action of voltage, because the resistance of the hot arm 6-1 is greater than that of the cold arm 6-2, the overall temperature of the hot arm 6-1 is also higher than that of the cold arm 6-2, which in turn results in thermal expansion deformation of the hot arm 6-1 far greater than that of the cold arm 6-2, ultimately bending the end of the U-shaped electro-thermal driver along its cold arm 6-2 direction (+X direction). The driving principle of the V-shaped electrothermal driver 3-51 is as follows: the V-shaped electrothermal driver has a bending beam 6-3 structure, and thermal expansion deformation generated by the driver under the action of voltage forces the driver to bend further along the initial bending direction (+X direction).
The basal layer 5 is provided with a supporting anchor point 4; the structural layer 3 is fixed on the supporting anchor point 4; the driver locking state feedback unit 3-1, the driver locking mechanism 3-2, the optical path on-off state feedback unit 3-3, the optical fiber driver 3-4, the reverse locking mechanism 3-5 and the reverse locking state feedback unit 3-6 can move relative to the supporting anchor point 4.
Furthermore, each surface of the supporting anchor point 4 is sputtered with a metal film for connecting a lead wire into a peripheral circuit.
The state monitoring comprises the following steps: the state of the reverse locking mechanism 3-5, the state of the driver locking mechanism 3-2, the state of the optical path on-off, and the state of the fuze safety device; the state of the reverse locking mechanism 3-5 is provided by a driver locking state feedback unit 3-6, the state of the driver locking mechanism 3-2 is provided by a driver locking state feedback unit 3-1, and the state of on-off of the optical path is provided by an optical path on-off state feedback unit 3-3; the state of the fuse safety releasing device is determined by the state of the reverse locking mechanism 3-5, the state of the driver locking mechanism 3-2 and the state of the on-off of the light path, when the light path is conducted, the driver locking mechanism 3-2 and the reverse locking mechanism 3-5 are in a locking state, the fuse safety releasing device is in a Jie Bao state, and when the light path is disconnected, the driver locking mechanism 3-2 and the reverse locking mechanism 3-5 are in a locking state, the fuse safety releasing device is in a safe state.
The state monitoring method comprises the following steps:
the initial (safe) state of the MOEMS fuse security device is shown in fig. 2, when the MOEMS fuse security device is changed from the initial (safe) state to the security releasing state in combination with fig. 10, voltage and a time sequence diagram of output voltage of each feedback unit are applied to the device, one side of an optical path on-off state feedback unit is connected with a low voltage detection power supply V0 at the moment 0, other components of the device are in a power-off state, the output end of an input optical fiber 2-3 is in a staggered position, an inverse locking state feedback unit 3-6, a driver locking state feedback unit 3-1 and an optical path on-off state feedback unit 3-3 do not have electric signal output, and the output end of the feedback optical fiber 2-2 does not have optical power output, so that the fuse security device is monitored to be in the safe state;
under the condition that the output ends of the input optical fibers 2-3 are staggered, if a laser source is started by mistake, laser energy is emitted to an optical power meter from the output end of a feedback optical fiber, if the optical power meter measures the laser energy under a non-test state, the optical power meter feeds a closing signal back to the laser source to close the laser source, so that the damage of the laser to the device is avoided;
as shown in fig. 7 and 11, at time t1, the MOEMS fuse releasing device recognizes the first environmental information, the driver locking mechanism 3-2 is loaded with a voltage V4, the left driver locking mechanism 3-2 moves in the-Y direction, the right driver locking mechanism moves in the +y direction, and further the locking of the optical fiber driver 3-4 is released, the driver locking mechanism 3-2 is in contact with the driver locking state feedback unit 3-1, and the driver locking state feedback unit 3-1 outputs an electrical signal V1, and is monitored as the driver locking mechanism 3-2 is in an unlocking state;
as shown in fig. 8 and 11, at time t2, the MOEMS fuse safety releasing device recognizes the second environmental information, the reverse locking mechanism 3-5 loads the voltage V5, the reverse locking mechanism 3-5 moves toward the +x direction, so as to unlock the output end of the input optical fiber 2-3, the reverse locking mechanism 3-5 contacts with the reverse locking state feedback unit 3-6, the reverse locking state feedback unit 3-6 outputs the electrical signal V2, and the reverse locking mechanism 3-5 is monitored to be in the unlocking state;
as shown in fig. 9 and 11, at time t3, the optical fiber driver 3-4 is loaded with a voltage V6 to drive the output end of the input optical fiber 2-3 to move to an alignment position in the +x direction, the optical fiber driver 3-4 contacts with the optical path on-off state feedback unit 3-3, and the optical path on-off state feedback unit 3-3 outputs an electrical signal V3 to monitor that the optical path is in a conducting state;
as shown in fig. 11, at time t4, the driver lock mechanism 3-2 is de-energized, the left driver lock mechanism moves in the +y direction, the right driver lock mechanism moves in the-Y direction, and thus the locking of the optical fiber driver 3-4 is completed, the driver lock mechanism 3-2 is separated from the driver lock state feedback unit 3-1, the driver lock state feedback unit 3-1 does not output an electrical signal, and it is monitored that the driver lock mechanism 3-2 is in a locked state;
as shown in fig. 11, at time t5, the optical fiber driver 3-4 is powered off, the driver locking mechanism 3-2 keeps locking the optical fiber driver 3-4, the optical path on-off state feedback unit 3-3 keeps outputting the electric signal V0, and the optical path is monitored to be kept in a conducting state;
as shown in fig. 11, at time t6, the reverse locking mechanism 3-5 is powered off, the reverse locking mechanism 3-5 moves in the-X direction, locking of the output end of the input optical fiber 2-3 is completed, the reverse locking mechanism 3-5 is separated from the reverse locking state feedback unit 3-6, the reverse locking state feedback unit 3-6 does not output an electrical signal, and the reverse locking state feedback unit 3-5 is monitored to be in a locking state;
as shown in fig. 10 and 11, at this time, each component of the MOEMS fuse security device is in a power-off state, the output end of the input optical fiber 2-3 is in an aligned position, the reverse locking state feedback unit 3-6 and the driver locking state feedback unit 3-1 do not output an electrical signal, and as the optical path on-off state feedback unit and the optical fiber driver keep contact and generate a path, the optical path on-off state feedback unit 3-3 outputs an electrical signal V0, so that the fuse security device is monitored to be in a security-releasing state.
As shown in fig. 12, the return of the MOEMS fuse security device from the unsecured state to the secure state also requires a correct timing signal, and may also output a response electrical signal, which is not described herein.
Claims (8)
1. The MOEMS fuze safety device with the state monitoring function is characterized by comprising a basal layer, a structural layer and an optical fiber group, wherein the structural layer and the optical fiber group are arranged on the basal layer;
the structural layer is fixed on the basal layer through a supporting anchor point;
the optical fiber group is provided with an input end and an output end; a staggered position and an aligned position are arranged between the input end and the output end, and the staggered position is arranged in a safety state;
the structural layer comprises:
the optical fiber driver is used for pushing the optical fiber group to be in an alignment position in an electrified state;
the driver locking mechanism is used for locking and unlocking the optical fiber driver and comprises locking the optical fiber driver when the optical fiber group is in a staggered position and locking the optical fiber driver when the optical fiber driver pushes the optical fiber group to be in an aligned position;
the reverse locking mechanism is used for locking the staggered position of the optical fiber group and unlocking the optical fiber group in an electrified state;
the driver locking state feedback unit is used for generating an output signal by matching with the driver locking mechanism to monitor the state of the driver locking mechanism;
the optical path on-off state feedback unit is used for being matched with the optical fiber driver to form a loop or not to generate an output signal so as to monitor the on-off state of the optical fiber group;
the reverse locking state feedback unit is used for generating an output signal by matching with the reverse locking mechanism to monitor the state of the reverse locking mechanism;
the reverse locking mechanism consists of a V-shaped electric heating driver and two fourth cantilever beams with fourth round contacts, wherein the two fourth cantilever beams with the fourth round contacts are symmetrically arranged on two sides of the V-shaped electric heating driver, and two ends of the V-shaped electric heating driver are respectively provided with a sixth supporting anchor point for loading voltage.
2. The MOEMS fuze safety solution device with status monitoring of claim 1, wherein when the detection fiber set is in the aligned position, the driver locking mechanism and the reverse locking mechanism are in the locked state, the fuze safety solution device is in the unlocked state; when the detection optical fiber group is in the staggered position, the driver locking mechanism and the reverse locking mechanism are in the locking state, and the fuze safety unlocking device is in the safety state.
3. The MOEMS fuze safety solution with status monitoring of claim 1, wherein the optical fiber set includes an input optical fiber, an output optical fiber, and a feedback optical fiber; a staggered position and an aligned position are arranged between the output end of the input optical fiber and the input end of the output optical fiber; the output end of the input optical fiber is kept staggered with the input end of the output optical fiber when the device is in a safe state; the feedback optical fiber is always positioned on the parallel side of the input optical fiber when the device is in a safe state, and the output end of the feedback optical fiber is coupled with the optical power meter and is used for monitoring the position change of the output end of the input optical fiber in real time.
4. The MOEMS fuze safety release device with state monitoring according to claim 1, wherein the driver locking mechanism is composed of two first U-shaped electrothermal drivers and a latch structure, wherein the two U-shaped electrothermal drivers share a second supporting anchor point, the two first U-shaped electrothermal drivers are respectively provided with a third supporting anchor point, and the latch structure is arranged and fixedly connected on the two U-shaped drivers and is matched with the latch structure on the optical fiber driver.
5. The MOEMS fuze safety release device with state monitoring according to claim 1, wherein the optical fiber driver is composed of two second U-shaped electrothermal drivers, two beams, one push rod, two second cantilever beams with second circular contacts and a latch structure, the two second U-shaped electrothermal drivers, the two beams and the two second cantilever beams are symmetrically arranged on the left side and the right side of the push rod, the push rod is connected with the U-shaped electrothermal drivers through the beams, and the two second U-shaped electrothermal drivers are respectively provided with two fourth supporting anchor points for loading voltage.
6. The MOEMS fuze safety release device with state monitoring according to claim 5, wherein the optical path on-off state feedback unit is composed of a third cantilever beam and a fifth support anchor point, which are located at the side of the movement direction of the optical fiber driver, and are symmetrically arranged with respect to the optical fiber driver, and when the optical fiber driver pushes the input optical fiber output end to the aligned position, the second cantilever beam of the optical fiber driver and the first cantilever beam of the driver locking state feedback unit are kept in contact with each other.
7. The MOEMS fuze safety release device with state monitoring according to claim 1, wherein the reverse locking state feedback unit is composed of a fifth cantilever beam and a seventh support anchor point, which are located at a movement direction side of the reverse locking mechanism, and symmetrically arranged with respect to the reverse locking mechanism, and when the reverse locking mechanism releases the locking of the optical fiber group, the fourth cantilever beam of the reverse locking mechanism and the fifth cantilever beam of the reverse locking state feedback unit remain in contact with each other.
8. The MOEMS fuze safety solution device with status monitoring according to any one of claims 1 to 7, wherein the status monitoring method comprises:
in the initial state, one side of the optical path on-off state feedback unit is connected with a detection power supply, the rest is in a power-off state, the optical fiber groups are in staggered positions, the reverse locking state feedback unit, the driver locking signal feedback unit and the optical path on-off state feedback unit do not have electric signal output, the feedback optical fiber output end does not have electric energy output, and the fuse safety device is monitored to be in a safe state;
under the condition that the optical fiber group is in a staggered position, if the laser source is started by mistake, the laser is emitted to the optical power meter, and if the optical power meter measures the laser energy in a non-test state, the optical power meter feeds back a closing signal to the laser source to close the laser source;
recognizing first environmental information, electrifying a driver locking mechanism to unlock the optical fiber driver, enabling the driver locking mechanism to be in contact with a driver locking state feedback unit, and enabling the driver locking state feedback unit to output an electric signal to monitor that the driver locking mechanism is in an unlocking state;
recognizing the second environmental information, electrifying a reverse locking mechanism to unlock the output end of the input optical fiber, enabling the reverse locking mechanism to be in contact with a reverse locking state feedback unit, and outputting an electric signal by the reverse locking state feedback unit, wherein the reverse locking state feedback unit monitors that the reverse locking mechanism is in an unlocking state;
then the optical fiber group is in an alignment position, the optical fiber driver is in contact with the optical path on-off state feedback unit, and the optical path on-off state feedback unit outputs an electric signal, so that the optical path is monitored to be in a conducting state;
the locking of the optical fiber driver is completed by the power-off of the driver locking mechanism, the driver locking mechanism is separated from the driver locking state feedback unit, and the driver locking state feedback unit outputs no electric signal and monitors that the driver locking mechanism is in a locking state;
the optical fiber driver is powered off, the driver locking mechanism keeps locking the optical fiber driver, the optical path on-off state feedback unit keeps outputting an electric signal, and the optical path is monitored to be kept in a conducting state;
the reverse locking mechanism is powered off to lock the output end of the input optical fiber, the reverse locking mechanism is in contact with the reverse locking state feedback unit, the reverse locking state feedback unit outputs no electric signal, and the reverse locking mechanism is monitored to be in a locking state;
at the moment, all parts of the device are in a power-off state, the input optical fiber output end is in an alignment position, the reverse locking state feedback unit and the driver locking state feedback unit do not output electrical signals, the optical path on-off state feedback unit outputs electrical signals, and the fuse safety releasing device is monitored to be in a releasing and protecting state.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW572211U (en) * | 2002-03-06 | 2004-01-11 | Hon Hai Prec Ind Co Ltd | Mechanical optical switch |
| US7051656B1 (en) * | 2003-08-14 | 2006-05-30 | Sandia Corporation | Microelectromechanical safing and arming apparatus |
| US7819062B2 (en) * | 2007-07-17 | 2010-10-26 | Alcatel-Lucent Usa Inc. | Safety and arming device for high-G munitions |
| FR2962209B1 (en) * | 2010-07-02 | 2012-07-13 | Nexter Munitions | RELIEF ANTI ADHERENCE FOR SAFETY AND ARMING DEVICE |
| CN103346699B (en) * | 2013-06-17 | 2016-12-07 | 上海大学 | V+U type composite beam micro-actuator based on electrothermal drive and preparation method thereof |
| CN109855488B (en) * | 2019-01-15 | 2020-06-02 | 西安交通大学 | MOEMS fuse safety system |
| CN109751929B (en) * | 2019-01-15 | 2020-06-02 | 西安交通大学 | Locking type MOEMS fuse safety mechanism |
| CN109932782B (en) * | 2019-04-11 | 2020-11-27 | 北京理工大学 | Silicon-based MOEMS optical switch device based on electric heating drive type micro-mirror |
| CN112033239B (en) * | 2019-06-18 | 2022-03-18 | 南京理工大学 | Fuse MEMS safety and safety relief device |
| CN112525022B (en) * | 2020-11-17 | 2022-03-18 | 南京理工大学 | Fuse security mechanism with modular design |
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