CN117419853A - Be used for breathing machine pressure sensor calibration and test fixture - Google Patents
Be used for breathing machine pressure sensor calibration and test fixture Download PDFInfo
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- CN117419853A CN117419853A CN202311435771.9A CN202311435771A CN117419853A CN 117419853 A CN117419853 A CN 117419853A CN 202311435771 A CN202311435771 A CN 202311435771A CN 117419853 A CN117419853 A CN 117419853A
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- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 64
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of pressure sensor testing, in particular to a tool for calibrating and testing a pressure sensor of a breathing machine, which comprises a sensor carrier, wherein a limiting slot group is arranged on the sensor carrier, and a pressing plate is arranged at the top of each limiting slot group; the limiting slot group comprises a plurality of limiting slots with the same specification, and probe jacks which can be communicated with the limiting slots are formed in the side wall of the sensor carrier; the outer end of the probe jack is provided with a probe module, the probe module comprises a supporting plate which can be abutted against the side wall of the sensor carrier, and a DUT board arranged on the outer side edge of the supporting plate, and a probe unit on the DUT board can penetrate through the probe jack and act on the pressure sensor module. The tool is reliable in sealing, small in air pressure stable fluctuation, free in product in the tool, and not directly compressed, so that the pressure sensor sensitive unit is prevented from being influenced by stress from the tool and the outside, and quality stability of product calibration and testing is realized.
Description
Technical Field
The invention relates to the technical field of pressure sensor testing, in particular to a tool for calibrating and testing a pressure sensor of a breathing machine.
Background
The pressure sensor is generally composed of a pressure sensitive element and a signal processing unit, is a device or a device capable of sensing pressure signals and converting the pressure signals into available output electric signals according to a certain rule, and is widely applied to various industrial self-control environments, and relates to various industries such as water conservancy and hydropower, railway transportation, intelligent building, production self-control, aerospace, military industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and the like.
In order to ensure that the pressure sensors projected to the market are all qualified products, before leaving the factory, manufacturers need to perform pressure test on the pressure sensors so as to analyze the performance of the corresponding pressure sensors and further screen out the qualified products.
The principle of pressure test is mainly that the air pressure required to be experimentally observed is input into an air tap of a sensor, and then communication and data acquisition between the sensor and an external test instrument in the test are realized through a probe. Because the breathing machine pressure sensor is small in size, small in pressure range, high in sensitivity to external pressure, high in output precision and the like, strict requirements are required for a test tool, such as: the air tightness of the required tool is good, the air pressure fluctuation in the air path of the required tool is small, and the stress of the required tool on the pressure sensor sensitive unit is small.
The pressure sensor calibration and test in China can meet the requirements at present, most of pressure sensors need to be purchased for imported pressure controllers, the purchasing period is long, the price is high, the maintenance cost is high, the structure is complex, and the operation is inconvenient.
Therefore, a new technical solution is urgently needed to solve the above-mentioned existing technical problems.
Disclosure of Invention
The invention aims to solve the problems of the prior art, and provides a tool for calibrating and testing a pressure sensor of a breathing machine, which is used for solving the technical problems of complex structure, poor air tightness, large air pressure fluctuation and large stress acting on a sensitive unit of the pressure sensor of the traditional pressure sensor.
The above purpose is realized by the following technical scheme:
the utility model provides a be used for breathing machine pressure sensor calibration and test fixture, includes the sensor carrier, set up a plurality of groups and supply pressure sensor module male spacing slot group on the sensor carrier, every spacing slot group's top is provided with the clamp plate, set up the air cock hole that can supply the air cock of pressure sensor module to run through on the clamp plate;
the limiting slot group comprises a plurality of limiting slots with the same specification, vent holes communicated with the limiting slots are formed along the bottom of the sensor carrier, and probe jacks capable of being communicated with the limiting slots are formed in the side wall of the sensor carrier;
the outer end of the probe jack is provided with a probe module, the probe module comprises a supporting plate which can be abutted against the side wall of the sensor carrier, and a DUT board which is arranged on the outer side edge of the supporting plate, and a probe unit on the DUT board can penetrate through the probe jack and act on the pressure sensor module;
the sensor carrier is also provided with a gas tank module, and the gas tank module comprises a tank body fixed with the surface of the sensor carrier and a tank cover matched with the top of the tank body; the tank body is provided with a plurality of air outlet holes, and each air outlet hole is connected with an air tap of each pressure sensor module through an air pipe; and an air inlet hole is formed in the tank cover and is connected with an external air supply module through an air pipe.
Further, a hinge support leg is arranged on one side of the pressing plate, correspondingly, a U-shaped hinge seat is arranged on the surface of the sensor carrier, and the hinge support leg and the hinge seat penetrate through a rotating shaft to realize mutual hinge.
Further, a pressing plate snap fastener is arranged on the side edge of the other pressing plate corresponding to the hinged support leg, and the pressing plate snap fastener can be matched with a pressing plate snap fastener groove formed in the side edge of the sensor carrier.
Further, the supporting plate corresponds to the side edge of the sensor carrier, supporting plate snap fasteners are respectively arranged at two ends of the supporting plate, and correspondingly, supporting plate snap fastener grooves matched with the supporting plate snap fasteners are formed in the side edge of the sensor carrier.
Further, the sensor carrier is rectangular, and the gas tank module is arranged at the center of the surface of the sensor carrier; correspondingly, the limit slot groups are provided with 4 groups which respectively correspond to four sides of the sensor carrier;
the side edge end parts of the sensor carrier platforms are provided with right-angle grooves, and the supporting plate snap fastener clamping grooves are arranged on the side walls of the right-angle grooves.
Further, a first limit screw through hole through which a limit screw can penetrate is formed in the support plate and the DUT plate, and a second limit screw through hole corresponding to the limit screw is formed in the side edge of the sensor carrier.
Further, a plurality of spring blind holes are further formed in the side edges of the sensor carriers, guide posts capable of extending out of the spring blind holes are arranged along the circle center positions of the spring blind holes, and one ends of the springs are abutted against the bottom walls of the spring blind holes after the springs are sleeved with the guide posts;
correspondingly, guide holes through which the guide posts can penetrate are formed in the support plate and the DUT plate.
Further, 2 guide posts are respectively arranged on the side edges of each sensor carrier, and the 2 guide posts are positioned on the same diagonal line; correspondingly, each probe module is provided with 2 guide holes matched with the guide posts.
Further, each limit slot group comprises 8 limit slots which are arranged at equal intervals, 8 corresponding probe units on each probe module are arranged, and 8 air tap holes of each pressing plate are arranged.
Further, the pressure sensor module comprises a Vcc pin, a Gnd pin and a Vout pin, and the probe unit comprises 3 probes which can respectively act on the Vcc pin, the Gnd pin and the Vout pin to realize communication and data acquisition.
Advantageous effects
The tool for calibrating and testing the pressure sensor of the breathing machine is reliable in sealing, small in air pressure stable fluctuation, free in product in the tool, not directly compressed, capable of avoiding the pressure sensor sensing unit from being influenced by stress from the tool and the outside, therefore, quality stability of product calibration and testing is achieved. In addition, the method has the following advantages:
1. the number of screws is less, the number of snap fasteners is more, and the time for screwing the screws is saved;
2. the space occupation is small, and when the test is needed in a high-temperature environment, the test device can be directly placed in an oven, and the appearance is neat and attractive;
3. the air pipe is short, so that the air tightness and the pressure stability of the product are improved;
4. the calibration yield is greatly improved compared with the prior art, the equipment operation rate and the full load rate are also effectively improved, and the labor cost can be greatly reduced.
Drawings
FIG. 1 is a schematic view of a first view angle structure of a tool for calibrating and testing a pressure sensor of a ventilator according to the present invention;
FIG. 2 is a schematic view of a second view angle structure of a tool for calibrating and testing a pressure sensor of a ventilator according to the present invention;
FIG. 3 is a cross-sectional view of a tool for calibrating and testing a pressure sensor of a ventilator according to the present invention;
FIG. 4 is a schematic diagram showing the connection between a sensor carrier and a platen for a tool for calibrating and testing a pressure sensor of a ventilator according to the present invention;
FIG. 5 is a schematic view of a gas tank module for a ventilator pressure sensor calibration and test fixture according to the present invention;
FIG. 6 is a schematic diagram of a limiting slot set for a tool for calibrating and testing a pressure sensor of a ventilator according to the present invention;
FIG. 7 is a schematic view of a first view angle structure of a probe module for a tool for calibrating and testing a pressure sensor of a ventilator according to the present invention;
FIG. 8 is a schematic diagram of a second view angle structure of a probe module for use in a tool for calibrating and testing a pressure sensor of a ventilator according to the present invention;
FIG. 9 is a schematic diagram of a third view angle structure of a probe module for a tool for calibrating and testing a pressure sensor of a ventilator according to the present invention;
FIG. 10 is a schematic diagram of a support plate and a snap connection of the support plate in a tool for calibrating and testing a pressure sensor of a respirator according to the present invention.
The graphic indicia:
1-sensor carrier, 101-probe jack, 102-hinge seat, 103-rotation axis, 104-press plate snap fastener groove, 105-support plate snap fastener groove, 106-right angle groove, 107-second limit screw through hole, 108-spring blind hole, 109-guide post, 110-spring, 111-vent;
2-probe module, 201-support plate, 202-DUT plate, 203-probe unit, 204-probe, 205-support plate snap, 206-limit screw, 207-first limit screw through hole, 208-guide hole;
3-gas tank module, 301-tank body, 302-tank cover, 303-gas outlet, 304-gas inlet, 305-seal ring groove, 306-seal ring and 307-fastening screw;
4-pressing plates, 401-air nozzle holes, 402-hinged support legs and 403-pressing plate snap fasteners;
5-limit slot groups and 501-limit slots;
6-pressure sensor module, 601-air cock.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. The described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3 and 6, the tool for calibrating and testing the pressure sensor of the breathing machine comprises a sensor carrying platform 1, wherein a plurality of groups of limiting slot groups 5 for inserting a pressure sensor module 6 are formed on the sensor carrying platform 1, a pressing plate 4 capable of limiting the top of the pressure sensor module 6 is arranged at the top of each limiting slot group 5, and an air nozzle hole 401 through which an air nozzle 601 of the pressure sensor module 6 can penetrate is formed in the pressing plate 4;
the limiting slot group 5 comprises a plurality of limiting slots 501 with the same specification, vent holes 111 communicated with the limiting slots 501 are formed along the bottom of the sensor carrier 1, and probe jacks 101 capable of being communicated with the limiting slots 501 are formed on the side wall of the sensor carrier 1;
a probe module 2 is arranged at the outer end of the probe jack 101, the probe module 2 comprises a supporting plate 201 which can be abutted against the side wall of the sensor carrier 1, and a DUT board 202 arranged at the outer side edge of the supporting plate 201, and a probe unit 203 on the DUT board 202 can penetrate through the probe jack 101 and act on the pressure sensor module 6 to acquire pressure test data;
as an air pressure output mechanism, the embodiment is further provided with an air tank module 3 on the sensor carrier 1, wherein the air tank module 3 comprises a tank body 301 fixed with the surface of the sensor carrier 1 and a tank cover 302 matched with the top of the tank body 301; the tank 301 is provided with a plurality of air outlet holes 303, and each air outlet hole 303 is connected with an air tap 601 of each pressure sensor module 6 through an air pipe respectively and is used for conveying air pressure to each pressure sensor module 6; an air inlet 304 is formed on the tank cover 302, and the air inlet 304 is connected with an external air supply module through an air pipe and is used for inputting air pressure into the tank 301;
in this embodiment, the external air supply module may be an air bottle or an air pump, and an air pressure valve is disposed on the air bottle or the air pump, so as to control the air pressure value required by the input test.
As shown in fig. 3 and 5, it should be noted that in this embodiment, the tank 301 includes a cylindrical cavity, each of the air outlet holes 303 is disposed on the tank 301, and each of the air outlet holes 303 is located on the same horizontal plane.
The structure is only used for storing the externally input air pressure, and then evenly distributed to the air outlet holes 303, so that the same air pressure is input into the air tap 601 of each pressure sensor module 6 in the experiment.
In order to increase the air tightness after the tank 301 and the tank cover 302 are closed, in this embodiment, a seal ring groove 305 is formed at the end of the tank 301, a seal ring 306 is filled in the seal ring groove 305, and the tank cover 302 is fastened with the tank 301 by a fastening screw 307 after being closed.
As shown in fig. 4, in this embodiment, the pressing plate 4 performs hinge overturning and covering on the corresponding limiting slot set 5, so as to realize synchronous limiting on each pressure sensor module 6 inserted into the limiting slot set 5, and only ensure that the air tap 601 extends out, so as to be connected with the air outlet 303 through an air pipe.
Specifically, a hinge leg 402 is disposed on one side of the pressing plate 4, and correspondingly, a U-shaped hinge seat 102 is disposed on the surface of the sensor carrier 1, and the hinge leg 402 and the hinge seat 102 penetrate through a rotation shaft 103 to realize mutual hinge.
A platen press button 403 is provided on a side of the other platen 4 corresponding to the hinge leg 402, and the platen press button 403 may be matched with a platen press button clamping groove 104 provided on a side of the sensor stage 1, so as to open and close the platen 4 with respect to the sensor stage 1.
In this embodiment, the hinge leg 402 and the press plate snap 403 are both disposed at the center of the press plate 4.
As shown in fig. 7 to 10, in this embodiment, the support plate 201 corresponds to a side edge of the sensor carrier 1, support plate snap fasteners 205 are respectively disposed at two ends of the support plate 201, and correspondingly, support plate snap fastener grooves 105 matched with the support plate snap fasteners 205 are formed on the side edge of the sensor carrier 1;
the support plate 201 is quickly attached to the side of the sensor carrier 1 by clamping the support plate snap fasteners 205 at the two ends of the support plate 201 with the support plate snap fastener grooves 105.
In order to realize that as many pressure sensor modules 6 as possible are carried for testing, the sensor carrier 1 in this embodiment is rectangular, preferably square, wherein the gas tank module 3 is arranged at the center of the surface of the sensor carrier 1; correspondingly, the limit slot groups 5 are 4 groups, which correspond to the four sides of the sensor carrier 1 respectively;
the lateral end of each sensor carrier 1 is provided with a right angle slot 106, and the support plate snap fastener clamping slots 105 are all arranged on the side wall of each right angle slot 106.
As shown in fig. 7 to 9, first limit screw through holes 207 through which limit screws 206 can pass are formed in the support plate 201 and the DUT plate 202, and second limit screw through holes 107 corresponding to the limit screws 206 are formed in the side of the sensor stage 1.
When the probe module 2 is required to be connected with the sensor stage 1 in order to collect each of the pressure sensor modules 6 in an experiment; because a certain air pressure exists in each limiting slot 501 in the test, if the probe module 2 is not fixed for the second time, under the action of the air pressure, the air pressure is easily caused to act on the probe module 2 along the probe jack 101; when the pressure is large enough, the support plate snap buttons 205 on both sides of the support plate 201 are separated from the support plate snap button grooves 105;
therefore, in this embodiment, after the probe module 2 and the sensor carrier 1 are connected to each other through the support plate snap fastener 205 and the support plate snap fastener slot 105, the limit screw 206 is inserted into the first limit screw through hole 207 along the outer side of the probe module 2, and is further inserted into the second limit screw through hole 107, so that the probe module 2 and the sensor carrier 1 are secondarily fixed by screwing.
As shown in fig. 4 and 5, as an optimization of the assembly and disassembly between the probe module 2 and the sensor carrier 1 in the present embodiment, a plurality of spring blind holes 108 are further formed on the side edge of each sensor carrier 1, a guide post 109 capable of extending out of the spring blind holes 108 is disposed along the center position of the spring blind holes 108, and after the guide post 109 is sleeved with a spring 110, one end of the spring 110 abuts against the bottom wall of the spring blind hole 108;
correspondingly, guide holes 208 through which the guide posts 109 can penetrate are formed in the support plate 201 and the DUT board 202;
specifically, by inserting the guide posts 109 into the guide holes 208, the probe units 203 on the DUT board 202 can be precisely inserted into the corresponding probe insertion holes 101, so as to achieve quick contact between the probe units 203 and the corresponding pressure sensor modules 6.
When the probe module 2 needs to be removed from the sensor carrier 1 so as to facilitate the insertion test of the new batch of pressure sensor modules 6, the limit screws 206 are reversely rotated to remove the probe module, then the support plate snap fasteners 205 at two ends of the probe module 2 are synchronously pressed to separate from the support plate snap fastener grooves 105, and at the moment that the support plate snap fasteners 205 are separated from the support plate snap fastener grooves 105, the probe module 2 also moves outwards under the action of the restoring force of the springs 110 to realize the quick separation from the sensor carrier 1, so that the separation between the probe unit 203 and the pressure sensor modules 6 is realized. This structure makes the dismantlement more efficient swift, and can not cause the damage to the pressure sensor module 6 that the test finishes.
In addition, 2 guide posts 109 are respectively provided on the side edges of each of the sensor stages 1, and the 2 guide posts 109 are located on the same diagonal line;
correspondingly, each probe module 2 is provided with 2 guiding holes 208 matched with the guiding posts 109, so as to ensure smooth collision or separation between the probe unit and the pressure sensor module 6 to be detected during disassembly and assembly.
As a specific embodiment of this solution, as shown in fig. 1, each of the limiting slot groups 5 includes 8 limiting slots 501 disposed at equal intervals, and correspondingly, 8 probe units 203 on each of the probe modules 2, and 8 air tap holes 401 of each of the pressing plates 4.
The pressure sensor module 6 includes a Vcc pin, a Gnd pin, and a Vout pin, and the probe unit 203 includes 3 probes 204, which can respectively act on the Vcc pin, the Gnd pin, and the Vout pin, so as to implement communication and data collection.
The above description is for the purpose of illustrating the embodiments of the present invention and is not to be construed as limiting the invention, but is intended to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principle of the invention.
Claims (10)
1. The utility model provides a be used for breathing machine pressure sensor calibration and test fixture, its characterized in that includes sensor carrier (1), set up spacing slot group (5) that a plurality of groups supply pressure sensor module (6) male on sensor carrier (1), the top of every spacing slot group (5) is provided with clamp plate (4), set up on clamp plate (4) can supply air cock hole (401) that air cock (601) of pressure sensor module (6) run through;
the limiting slot group (5) comprises a plurality of limiting slots (501) with the same specification, vent holes (111) communicated with the limiting slots (501) are formed along the bottom of the sensor carrier (1), and probe jacks (101) capable of being communicated with the limiting slots (501) are formed in the side wall of the sensor carrier (1);
a probe module (2) is arranged at the outer end of the probe jack (101), the probe module (2) comprises a supporting plate (201) which can be abutted against the side wall of the sensor carrier (1), and a DUT board (202) arranged at the outer side edge of the supporting plate (201), and a probe unit (203) on the DUT board (202) can penetrate through the probe jack (101) and act on the pressure sensor module (6);
a gas tank module (3) is further arranged on the sensor carrier (1), and the gas tank module (3) comprises a tank body (301) fixed with the surface of the sensor carrier (1) and a tank cover (302) matched with the top of the tank body (301); a plurality of air outlet holes (303) are formed in the tank body (301), and each air outlet hole (303) is connected with an air tap (601) of each pressure sensor module (6) through an air pipe; and an air inlet hole (304) is formed in the tank cover (302), and the air inlet hole (304) is connected with an external air supply module through an air pipe.
2. The tool for calibrating and testing the pressure sensor of the breathing machine according to claim 1, wherein a hinge support leg (402) is arranged on one side of the pressing plate (4), and correspondingly, a U-shaped hinge seat (102) is arranged on the surface of the sensor carrier (1), and the hinge support leg (402) and the hinge seat (102) are hinged with each other through a rotating shaft (103).
3. A tool for calibrating and testing a pressure sensor of a breathing machine according to claim 2, characterized in that a press plate snap button (403) is arranged on the side of the other press plate (4) corresponding to the hinge leg (402), said press plate snap button (403) being mateable with a press plate snap button clamping groove (104) opened on the side of the sensor carrier (1).
4. The tool for calibrating and testing the pressure sensor of the breathing machine according to claim 1, wherein the supporting plate (201) corresponds to the side edge of the sensor carrier (1), supporting plate snap fasteners (205) are respectively arranged at two ends of the supporting plate (201), and correspondingly, supporting plate snap fastener grooves (105) matched with the supporting plate snap fasteners (205) are formed in the side edge of the sensor carrier (1).
5. The tool for calibrating and testing the pressure sensor of the breathing machine according to claim 4, wherein the sensor carrier (1) is rectangular, and the gas tank module (3) is arranged at the center of the surface of the sensor carrier (1); correspondingly, the limit slot groups (5) are provided with 4 groups which respectively correspond to four sides of the sensor carrier (1);
the side edge end parts of the sensor carrier tables (1) are provided with right-angle grooves (106), and the supporting plate snap fastener clamping grooves (105) are arranged on the side walls of the right-angle grooves (106).
6. The tool for calibrating and testing the pressure sensor of the breathing machine according to claim 5, wherein a first limit screw through hole (207) through which a limit screw (206) can pass is formed in the supporting plate (201) and the DUT board (202), and a second limit screw through hole (107) corresponding to the limit screw (206) is formed in the side edge of the sensor carrier (1).
7. The tool for calibrating and testing the pressure sensor of the breathing machine according to claim 4, wherein a plurality of spring blind holes (108) are further formed in the side edge of each sensor carrier (1), guide posts (109) capable of extending out of the spring blind holes (108) are arranged along the circle center positions of the spring blind holes (108), and after the guide posts (109) are sleeved with springs (110), one ends of the springs are abutted against the bottom walls of the spring blind holes (108);
correspondingly, guide holes (208) through which the guide posts (109) can penetrate are formed in the support plate (201) and the DUT plate (202).
8. A tool for calibrating and testing a pressure sensor of a breathing machine according to claim 7, characterized in that 2 guide posts (109) are respectively arranged on the side edges of each sensor carrier (1), and 2 guide posts (109) are positioned on the same diagonal line; correspondingly, each probe module (2) is provided with 2 guide holes (208) matched with the guide posts (109).
9. The tool for calibrating and testing the pressure sensor of the breathing machine according to claim 5, wherein each limit slot group (5) comprises 8 limit slots (501) which are arranged at equal intervals, 8 corresponding probe units (203) on each probe module (2) and 8 air tap holes (401) of each pressing plate (4).
10. The tool for calibrating and testing the pressure sensor of the breathing machine according to claim 9, wherein the pressure sensor module (6) comprises a Vcc pin, a Gnd pin and a Vout pin, and the probe unit (203) comprises 3 probes (204) which can respectively act on the Vcc pin, the Gnd pin and the Vout pin to realize communication and data acquisition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311435771.9A CN117419853B (en) | 2023-11-01 | 2023-11-01 | Be used for breathing machine pressure sensor calibration and test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311435771.9A CN117419853B (en) | 2023-11-01 | 2023-11-01 | Be used for breathing machine pressure sensor calibration and test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117419853A true CN117419853A (en) | 2024-01-19 |
| CN117419853B CN117419853B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311435771.9A Active CN117419853B (en) | 2023-11-01 | 2023-11-01 | Be used for breathing machine pressure sensor calibration and test fixture |
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- 2023-11-01 CN CN202311435771.9A patent/CN117419853B/en active Active
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| CN108061619A (en) * | 2018-01-17 | 2018-05-22 | 深圳世格赛思医疗科技有限公司 | A kind of method that new Medical Devices pressure calibration system and the system are calibrated |
| CN210375522U (en) * | 2019-09-05 | 2020-04-21 | 朝阳市加华电子有限公司 | Pressure sensor test fixture |
| CN212844150U (en) * | 2020-08-11 | 2021-03-30 | 无锡永阳电子科技有限公司 | GPF differential pressure sensor module is calibration test fixture in batches |
| CN215262230U (en) * | 2021-07-02 | 2021-12-21 | 无锡华阳科技有限公司 | Calibration test tool for pressure sensor of breathing machine |
| CN217930669U (en) * | 2022-04-06 | 2022-11-29 | 无锡华阳科技有限公司 | Device for calibrating and testing performance of pressure sensor |
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| CN117419853B (en) | 2024-05-14 |
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