CN110595614B - Spark detector performance testing device for dust explosion prevention and testing method thereof - Google Patents
Spark detector performance testing device for dust explosion prevention and testing method thereof Download PDFInfo
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- CN110595614B CN110595614B CN201910807152.5A CN201910807152A CN110595614B CN 110595614 B CN110595614 B CN 110595614B CN 201910807152 A CN201910807152 A CN 201910807152A CN 110595614 B CN110595614 B CN 110595614B
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- 238000012360 testing method Methods 0.000 title claims abstract description 90
- 239000000428 dust Substances 0.000 title claims abstract description 28
- 238000004880 explosion Methods 0.000 title claims description 23
- 230000002265 prevention Effects 0.000 title description 7
- 238000001514 detection method Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 230000001788 irregular Effects 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims 1
- 238000012216 screening Methods 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 5
- 230000008033 biological extinction Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
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- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/0295—Constructional arrangements for removing other types of optical noise or for performing calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/08—Arrangements of light sources specially adapted for photometry standard sources, also using luminescent or radioactive material
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Abstract
The invention relates to a performance testing device and a testing method for a dust explosion-proof spark detector, wherein the performance testing device comprises a spark detector testing position, a blackbody furnace, a spark baffle, a turntable motor, a speed measuring code wheel, a control box, an adjustable stabilized voltage supply and a dual-channel oscilloscope. The invention provides a good screening mode for the performance of the spark detector with good quality, has simple testing method and convenient use, and provides substantial help for improving the safety of the industry and trade industry and avoiding hidden danger.
Description
Technical Field
The invention belongs to the field of dust explosion-proof equipment performance testing devices, and particularly relates to a performance testing device and a testing method for a spark detector for dust explosion prevention.
Background
In recent years, due to the development of industry and trade industry, the operation process of powder-related enterprises is more and more, especially the woodworking furniture and textile industry, the particle size of generated dust is small and easy to disperse, and the situation that tiny sparks generated at the process source enter a dust removal system to cause explosion is frequently and frequently. Spark detection and extinction systems are used to prevent such hazards.
At present, different spark detection and extinction systems exist at home and abroad on the market, and performances such as the minimum diameter, the minimum detection temperature, the maximum detection distance, the maximum detection angle and the like of sparks cannot be simply considered.
Disclosure of Invention
The invention aims to provide a spark detector performance testing device for dust explosion prevention and a testing method thereof.
In order to solve the technical problems, a first object of the invention is to provide a spark detector performance testing device for dust explosion prevention, which comprises a spark detector testing position vertically arranged and used for installing a spark detector to be verified, a blackbody furnace with a furnace mouth and a furnace body, the furnace mouth facing the spark detector testing position and used for simulating the spark radiation energy of the dust explosion environment, a spark baffle with a first hole formed on the surface and installed at the furnace mouth of the blackbody furnace and used for simulating the spark size and the shape of the dust explosion environment, a turntable arranged on the outer side of the spark baffle and parallel to the spark baffle and used for simulating the spark movement speed of the dust explosion environment, a turntable motor with one end used for installing the turntable and driving the turntable to rotate, a speed measuring code disc arranged on the other end of the turntable motor, a control box electrically connected with the blackbody furnace and used for setting the temperature of the blackbody furnace, an adjustable voltage stabilizing power supply electrically connected with the turntable motor and used for controlling the turntable speed, and a two-channel detector and the two-channel baffle electrically connected with the blackbody furnace, and the two-channel detector and the two-speed measuring device are arranged between the two-channel furnace and the two-channel speed measuring diaphragm and the two-channel speed measuring device.
In particular, the number of first holes may be one or more, so as to be able to simulate a single or clustered spark.
In particular, the first apertures may have different sizes, including but not limited to one or more of circular, square, star-shaped, triangular, and irregular shapes.
Specifically, the distance between the turntable and the furnace mouth of the blackbody furnace is not less than 5cm.
Specifically, testing arrangement still including set up in the blackbody stove mouth the place ahead and with the parallel sliding guide of axis of the furnace body of blackbody stove, with sliding guide sliding connection's fine motion platform, with the angle sensor that the fine motion platform is connected, spark detector test position is fixed to be set up on the fine motion platform, the fine motion platform can carry out angle four-dimensional adjustment in X axle, Y axle, Z axle and XY plane, thereby changes spark detector test position with the distance and the angle of blackbody stove mouth.
Optimally, the micro-motion platform is also provided with a laser pen capable of emitting red laser.
Specifically, the spark detector test position includes first L template group, movably installs second L template group on the first L template group, first L template group includes first bottom plate, fixes first bottom plate surface edge department and rather than the first riser of looks vertically, has seted up the third hole on the first riser, second L template group includes the second bottom plate, fixes the second riser of second bottom plate side, has seted up the fourth hole on the second riser, first L template group with the relative position of second L template group can be adjusted, thereby can change the size of the overlap portion in third hole with the fourth hole, in order to adapt to the spark detector of equidimension not.
Specifically, the electrical connection manner of the test device is as follows: the positive electrode of the adjustable stabilized power supply is connected with the positive electrode of the spark detector, and the negative electrode of the adjustable stabilized power supply is connected with the negative electrode of the spark detector; the signal output end of the spark detector is connected with one channel of the two-channel oscilloscope, and the other channel of the two-channel oscilloscope is respectively connected with a group of positive electrodes and negative electrodes of the speed measuring code wheel; the other group of positive poles and negative poles of the speed measuring code wheel are correspondingly connected with the positive pole and the negative pole of the adjustable stabilized voltage supply; the positive pole of the turntable motor is connected with the positive pole of the adjustable stabilized power supply, and the negative pole of the turntable motor is connected with the negative pole of the adjustable stabilized power supply.
The second object of the present invention is to provide a testing method of the spark detector performance testing device for dust explosion protection, wherein the testing method comprises the steps of firstly determining whether the spark detector to be tested is sensitive to sunlight, if so, testing under dark room conditions, and then testing according to the following steps, if not, directly testing according to the following steps:
(1) Firstly, fixing the spark detector with the performance to be measured on the spark detector test position, and adjusting the center alignment of the spark detector test position, the furnace mouth of the blackbody furnace and the second hole of the turntable; then the spark detector, the blackbody furnace, the control box, the turntable motor, the double-channel oscilloscope and the adjustable stabilized voltage supply are electrically connected;
(2) Setting the blackbody furnace to be at a specified temperature, selecting the spark baffle with the smallest opening diameter to be installed at the furnace mouth of the blackbody furnace, adjusting the voltage of the adjustable stabilized power supply to select the lowest simulated wind speed, and installing the spark detector test position at the farthest distance.
Specifically, in the step, the sizes of the first holes of the spark baffle plate are changed from small to large in sequence; changing the temperature of the blackbody furnace from low to high; changing the distance between the spark detector test position and the furnace mouth from far to near; changing the detection angle between the spark detector test position and the furnace mouth from large to small; and adjusting the rotating speed of the turntable, namely adjusting the voltage of the adjustable stabilized power supply from low to high.
Preferably, the first holes of the same size range from circular, square, star-shaped, triangular to irregular shapes.
In the invention, a laser pen on a micro-motion platform is adopted to emit red laser for adjusting the center alignment of the spark detector test position, the furnace mouth of the blackbody furnace and the second hole of the turntable; the spark detector test position is arranged at the farthest distance, namely the spark detector test position is arranged at the farthest distance of the sliding guide rail, namely the spark detector test position is arranged at one end part of the sliding guide rail farthest from the blackbody furnace.
The scope of the present application is not limited to the specific combination of the above technical features, but also covers other technical features formed by any combination of the above technical features or their equivalents. Such as those described above, and those disclosed in the present application (but not limited to) having similar functions, are replaced with each other.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention provides a good screening mode for the performance of the spark detector with good quality in the market at present, and the identification method is simple and convenient to use, thereby providing substantial help for improving the safety of the industry and trade industry and avoiding hidden danger.
Drawings
FIG. 1 is a perspective view of one direction of a turntable and blackbody furnace of the present invention;
FIG. 2 is a perspective view of the turntable and blackbody furnace of the present invention in another direction;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a perspective view of one orientation of the spark detector test bit of the present invention;
FIG. 5 is a perspective view of another orientation of the spark detector test bit of the present invention;
FIG. 6 is a circuit diagram of the present invention;
Wherein: 11. a first base plate; 12. a first riser; 13. a third hole; 14. a waist-shaped hole; 21. a second riser; 22. a fourth hole; 23. a second base plate; 31. a furnace mouth; 32. a furnace body; 33. a blackbody furnace support; 51. a second hole; 52. a turntable; 53. a motor shaft; 54. a turntable support; 6. a speed measuring code disc.
Detailed Description
1-6, A spark detector performance testing device for dust explosion prevention comprises a spark detector testing position, a blackbody furnace, a spark baffle (not shown in the figure), a rotary table 52, a speed measuring code wheel 6, a sliding guide rail (not shown in the figure), a micro-motion platform (not shown in the figure) provided with a laser pen, an angle sensor (not shown in the figure), a control box, an adjustable stabilized voltage supply, a double-channel oscilloscope and a rotary table motor. The test device is typically mounted on and used with an optical bench.
The spark detector test position is vertically arranged and used for installing the spark detector to be verified, the specific structure is shown in fig. 4-5, and the center of the spark detector test position is provided with a hole so as to enable red laser (red laser is shot to the direction of a blackbody furnace) emitted by a laser pen on the micro-motion platform to penetrate. The spark detector testing position comprises a first L-shaped plate group and a second L-shaped plate group arranged on the first L-shaped plate group; the first L-shaped plate group comprises a first bottom plate 11 and a first vertical plate 12 (the fixing mode is a bolt and the like is conventional, and the same applies to the fixing mode), which is fixed at the edge of the surface of the first bottom plate 11 and is vertical to the first bottom plate, and a third hole 13 is formed in the first vertical plate 12; the second L-shaped plate group comprises a second bottom plate 23 and a second vertical plate 21 fixed on the side surface of the second bottom plate 23, and a fourth hole 22 is formed in the second vertical plate 21; the second riser 21 is mounted on the side of the first riser 12 such that the third hole 13 corresponds to the fourth hole 22 (the first riser 12 and the second riser 21 are each provided with a plurality of waist-shaped holes 14, and the second riser 21 is mounted on and connected to the first riser 12 by mounting fasteners such as bolts and nuts in each waist-shaped hole 14). The relative positions of the first L-shaped plate group and the second L-shaped plate group are adjusted by adjusting the tightness of the fastening piece, so that the size of the overlapped part of the third hole 13 and the fourth hole 22 is changed, the complete overlapping or the partial overlapping is realized, and the size of different spark detectors can be adapted. In the present application, the first base plate 11 may be mounted on the micro-motion platform so as to fasten the spark detector testing site on the micro-motion platform; the spark detector is then mounted to the spark detector test site (typically to either the first riser 12 or the second riser 21) by conventional fasteners in correspondence with the third and fourth holes 13, 22.
The blackbody furnace is placed on one side of the spark detector test site and comprises a furnace mouth 31 and a furnace body 32 (the furnace mouth 31 is arranged on the end face of the furnace body 32), and the furnace mouth 31 faces the spark detector test site. The blackbody furnace is used for simulating spark radiation energy in a dust explosion environment and is characterized by the temperature of the blackbody furnace, and the lowest detection temperature of the spark detector can be detected by adjusting the temperature of the blackbody furnace; the blackbody furnace is electrically connected to a control box (not shown) and the temperature of the blackbody furnace can be set and controlled by adjusting the control box. In order to make the blackbody furnace more stable, the bottom of the furnace body 32 of the blackbody furnace is further provided with a blackbody furnace support 33 so as to stably support it on the substrate.
A spark baffle (not shown) is installed at the mouth 31 of the blackbody furnace between the blackbody furnace and the turntable 52, and a first hole (not shown) is opened therein. The first holes may be of different sizes and shapes or may be of different numbers (e.g., one or more) so as to be able to simulate a single or clustered spark. The shape of the first aperture includes, but is not limited to, circular, square, star-shaped, triangular, etc. In the application, the spark baffle is used for simulating the size and shape of sparks in the dust explosion environment, and the size and shape of a first hole on the spark baffle are used for representing; thus, by changing the spark baffles of different sizes and shapes, the minimum spark diameter that can be detected under different conditions can be detected.
The turntable 52 is rotatably arranged on the outer side of the spark baffle plate and parallel to the spark baffle plate, and the distance between the turntable and the blackbody furnace mouth 31 is not less than 5cm; the turntable 52 is provided with a second hole 51 with a hole diameter larger than that of the first hole, and the turntable 52 can rotate to simulate the spark moving speed of the dust explosion environment. When a first hole (not shown) overlaps a second hole 51, an analog spark signal for detecting a spark detector having a certain temperature, a certain shape and size, and a certain moving speed is formed. The turntable 52 is connected with a turntable motor so as to be driven to rotate by the turntable motor; the turntable motor may be electrically connected to an adjustable regulated power supply (not shown) for controlling the speed of turntable 52. The turntable motor is provided at the bottom thereof with a turntable support 54 to firmly support the turntable motor and turntable 52 on the aforementioned substrate. The motor shaft 53 of the turntable motor also extends towards a direction away from the turntable 52, and the other end of the motor shaft 53 (the turntable 52 is arranged at one end of the motor shaft 53) is provided with a speed measuring code wheel (which can generate speed measuring pulse, 5V) with 12 grids for calculating the rotating linear speed of the turntable and simulating different wind speeds in a dust explosion environment.
As shown in fig. 6, the dual-channel oscilloscope is electrically connected with the spark detector and the tachometer dial 6 (i.e. the channel 1 of the dual-channel oscilloscope is electrically connected with the signal output end of the spark detector, and the channel 2 is electrically connected with a set of positive and negative electrodes of the tachometer dial 6) respectively, so as to be used for measuring the signal of the spark detector and the rotating speed of the turntable 52 respectively. The red laser emitted by the laser pen on the micro-motion platform can be used for aligning the hole (the third hole 13 or the fourth hole 22) on the spark detector test position, the blackbody furnace mouth 31 and the second hole 51 of the turntable 52 (namely, the hole on the spark detector test position, the blackbody furnace mouth and the turntable hole are accurately aligned by using the red laser).
The foregoing micro-motion stage (not shown in the drawings) is mounted by a sliding guide (for example, a sliding guide is disposed on the surface of the optical stage, and the micro-motion stage is mounted on the sliding guide, so that the micro-motion stage is slidably mounted on the optical stage), and the sliding guide is generally parallel to the central axis of the blackbody furnace body 32, so that the distance and the deflection angle between the spark detector and the blackbody furnace can be manually adjusted, and the maximum detection distance and the maximum detection angle of the spark detector at different temperatures can be detected. The micro-motion platform is arranged on the optical platform and can adjust angles of X, Y, Z and XY planes in four dimensions, so that the distance and the angle between the spark detector test position and the blackbody furnace mouth 31 are adjusted; the device also includes an angle sensor (not shown) coupled to the micro-motion stage (not shown) for determining the aforementioned deflection angle. The invention selects a commercial micro-motion platform with the model number XYZR-L, and the moving amount is as follows: x, Y degrees plus or minus 6.5mm, 10mm in Z axis, 360 degrees rotation in rough adjustment of R axis and plus or minus 5 degrees fine adjustment.
The adjustable stabilized power supply is commercially available, and the circuit connection of other components is shown in fig. 6 (all the components are commercially available and directly connected by adopting wiring). The method comprises the following steps: the positive electrode of the adjustable stabilized voltage supply 24V is connected with the positive electrode of the spark detector, and the negative electrode of the adjustable stabilized voltage supply 24V is connected with the negative electrode of the spark detector; the signal output end of the spark detector is connected with a channel 1 of a dual-channel oscilloscope, and a channel 2 of the dual-channel oscilloscope is respectively connected with a group of positive electrodes and negative electrodes of a pulse of a speed measuring code wheel 6; the other group of positive poles and negative poles of the pulse of the speed measuring code wheel 6 are correspondingly connected with the positive pole and the negative pole of the adjustable stabilized voltage supply 5V; the positive pole of the turntable motor is connected with the positive pole of the adjustable voltage-stabilizing power supply of 0-50V, and the negative pole of the turntable 52 motor is connected with the negative pole of the adjustable voltage-stabilizing power supply of 0-50V.
The testing method of the spark detector performance testing device for dust explosion prevention (firstly, whether the spark detector to be tested is sensitive to sunlight or not is confirmed, if so, the testing needs to be carried out under the condition of a darkroom, otherwise, the testing is directly carried out according to the following steps) is carried out according to the following steps:
(1) The spark detector with the performance to be measured is fixed at a spark detector test position, and the spark detector test position is arranged on the micro-motion platform and is arranged on the optical platform through a sliding guide rail; the laser pen on the micro-motion platform is utilized to emit red laser to align the center of the spark detector test position, the furnace mouth 31 of the blackbody furnace and the second hole 51 of the turntable 52; then, the spark detector, the blackbody furnace, the control box, the turntable motor, the double-channel oscilloscope, the adjustable stabilized voltage supply and the like are electrically connected according to the diagram shown in FIG. 6;
(2) Setting the blackbody furnace to a specified temperature, selecting a spark baffle (not shown in the figure) with the smallest opening diameter to be installed at a furnace mouth 31 of the blackbody furnace, adjusting the voltage of the adjustable stabilized power supply to select the lowest simulated wind speed, and installing a spark detector test position at the farthest distance of a sliding guide rail (not shown in the figure);
In step (2), a spark baffle (not shown) is changed to change the size of the first hole (not shown) in order from small to large; first holes (not shown) of the same size range from circular, square, star-shaped, triangular to irregular shapes. Changing the temperature of the blackbody furnace from low to high; changing the distance between the spark detector test position and the furnace mouth 31 from far to near; changing the detection angle between the spark detector test position and the furnace mouth 31 from large to small; adjusting the rotation speed of the turntable 52 adjusts the voltage of an adjustable stabilized power supply (not shown in the figure) from low to high; the test purpose of this step is to find the optimal value of the limit value (and other conditions to which the limit value is attached according to the need) and other conditions under the limit value conditions for which the test result has repeatability;
(3) After the test is completed, the test result shows that the tested spark detector and the detectors of the same type have the same performance, and any design of the spark detector, increase or decrease or change of accessories and suppliers of the spark detector show that the test result is not applicable any more.
In the invention, the spark detector test position is arranged at the farthest distance, namely the spark detector test position is arranged at the farthest distance of the sliding guide rail, namely the spark detector test position is arranged at one end part of the sliding guide rail farthest from the blackbody furnace.
As described above, we have fully described the gist of the present invention, but the present invention is not limited to the above-described embodiments and implementation methods. A practitioner of the related art may make various changes and implementations within the scope of the technical idea of the present invention.
Claims (7)
1. A spark detector capability test device for dust explosion-proof, its characterized in that: comprises a spark detector test position which is vertically arranged and is used for installing a spark detector to be verified, a blackbody furnace which is provided with a furnace mouth (31) and a furnace body (32) and is provided with the furnace mouth (31) facing the spark detector test position and is used for simulating the spark radiation energy of the dust explosion environment, a spark baffle which is provided with a first hole on the surface and is arranged at the furnace mouth (31) of the blackbody furnace and is used for simulating the spark size and shape of the dust explosion environment, a rotary table (52) which is arranged outside the spark baffle and is parallel to the spark baffle and is used for simulating the spark movement speed of the dust explosion environment, a rotary table motor with one end used for installing the rotary table (52) and driving the rotary table (52) to rotate, a speed measuring code disc (6) which is arranged at the other end of the rotary table motor, a control box which is electrically connected with the blackbody furnace and is used for setting and controlling the temperature of the blackbody furnace, a double-channel oscilloscope which is electrically connected with the rotary table motor and is used for controlling the speed of the rotary table (52), the spark baffle is arranged between the blackbody furnace and the rotary table (52), the rotary table (52) is provided with a second hole (51) with a hole diameter larger than that of the first hole, when the first hole is overlapped with the second hole (51), an analog spark signal which has a certain temperature, a certain shape and size and a certain moving speed and is used for detecting the spark detector is formed, the speed measuring code wheel (6) is used for calculating the rotating angular speed of the rotary table (52) so as to simulate different wind speeds in a dust explosion environment, and the two-channel oscilloscope can be used for measuring a spark detector signal and the rotating speed of the rotary table (52) respectively;
The testing device further comprises a sliding guide rail, a micro-motion platform and an angle sensor, wherein the sliding guide rail is arranged in front of a furnace mouth (31) of the blackbody furnace and is parallel to the central axis of a furnace body (32) of the blackbody furnace, the micro-motion platform is in sliding connection with the sliding guide rail, the angle sensor is connected with the micro-motion platform, the spark detector test position is fixedly arranged on the micro-motion platform, and the micro-motion platform can perform four-dimensional angle adjustment on X-axis, Y-axis, Z-axis and XY-plane, so that the distance and angle between the spark detector test position and the furnace mouth (31) of the blackbody furnace are changed;
The micro-motion platform is also provided with a laser pen capable of emitting red laser;
The spark detector test position comprises a first L-shaped plate group and a second L-shaped plate group which is movably arranged on the first L-shaped plate group, the first L-shaped plate group comprises a first bottom plate (11), a first vertical plate (12) which is fixed at the edge of the surface of the first bottom plate (11) and is vertical to the first L-shaped plate group, a third hole (13) is formed in the first vertical plate (12), the second L-shaped plate group comprises a second bottom plate (23), a second vertical plate (21) which is fixed on the side surface of the second bottom plate (23), a fourth hole (22) is formed in the second vertical plate (21), and the relative positions of the first L-shaped plate group and the second L-shaped plate group can be adjusted, so that the sizes of overlapping parts of the third hole (13) and the fourth hole (22) can be changed to adapt to spark detectors with different sizes.
2. The spark detector performance testing apparatus for dust explosion protection according to claim 1, wherein: the number of first holes may be one or more so as to be able to simulate a single or clustered spark.
3. The spark detector performance testing apparatus for dust explosion protection according to claim 1, wherein: the first apertures may be of different sizes and shapes including, but not limited to, one or more of circular, square, star-shaped, triangular, and irregular shapes.
4. The spark detector performance testing apparatus for dust explosion protection according to claim 1, wherein: the distance between the rotary table (52) and the furnace mouth (31) of the blackbody furnace is not less than 5cm.
5. The spark detector performance testing apparatus for dust blast protection of claim 1, wherein the testing apparatus is electrically connected as follows: the positive electrode of the adjustable stabilized power supply is connected with the positive electrode of the spark detector, and the negative electrode of the adjustable stabilized power supply is connected with the negative electrode of the spark detector; the signal output end of the spark detector is connected with one channel of the two-channel oscilloscope, and the other channel of the two-channel oscilloscope is respectively connected with a group of positive electrodes and negative electrodes of the speed measuring code wheel (6); the other group of positive poles and negative poles of the speed measuring code wheel (6) are correspondingly connected with the positive pole and the negative pole of the adjustable stabilized voltage supply; the positive pole of the turntable motor is connected with the positive pole of the adjustable stabilized power supply, and the negative pole of the turntable motor is connected with the negative pole of the adjustable stabilized power supply.
6. A method according to any one of claims 1-5, characterized in that it is first established whether the spark detector to be tested is sensitive to sunlight, if so, the test is to be performed under dark room conditions, and then the test is performed according to the following steps, if the spark detector to be tested is not sensitive to sunlight, the test is directly performed according to the following steps:
(1) Firstly, fixing the spark detector with the performance to be measured on the spark detector test position, and adjusting the center alignment of the spark detector test position, a furnace mouth (31) of the blackbody furnace and a second hole (51) of the turntable (52); then the spark detector, the blackbody furnace, the control box, the turntable motor, the double-channel oscilloscope and the adjustable stabilized voltage supply are electrically connected;
(2) Setting the blackbody furnace to be at a specified temperature, selecting the spark baffle with the smallest opening diameter to be installed at a furnace mouth (31) of the blackbody furnace, adjusting the voltage of the adjustable stabilized power supply to select the lowest simulated wind speed, and installing the spark detector test position at the farthest distance.
7. The test method of claim 6, wherein: in the step (2), the sizes of the first holes of the spark baffle are changed from small to large in sequence; changing the temperature of the blackbody furnace from low to high; changing the distance between the spark detector test position and the furnace mouth (31) from far to near; changing the detection angle between the spark detector test position and the furnace mouth (31) from large to small; and adjusting the rotating speed of the rotating disc (52), namely adjusting the voltage of the adjustable stabilized power supply from low to high.
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