CN117968934A - Intelligent compensation system for pressure sensor detection - Google Patents
Intelligent compensation system for pressure sensor detection Download PDFInfo
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Abstract
The invention relates to the technical field of pressure sensors, in particular to an intelligent compensation system for detecting a pressure sensor, which comprises a pressure sensor fixing groove for placing the pressure sensor to be detected, an auxiliary sensor fixing groove for placing a standard pressure sensor for auxiliary monitoring, a temperature adjusting unit, a pressurizing column, a pressure data checking unit for checking the standard pressure sensor or the pressurizing column, and a data analysis module, wherein the data analysis module is used for carrying out compensation calculation on the pressure data and grading the pressure sensor to be detected. According to the invention, by setting the standard pressure sensor, when the sensor to be detected is judged, whether the working states of other components reach the standard can be synchronously judged, so that the working environments of the sensor to be detected are standard preset environments, the temperature and pressure conditions of the pressure sensor are reasonably controlled, and the quality evaluation of the pressure sensor is more accurate.
Description
Technical Field
The invention relates to the technical field of pressure sensors, in particular to an intelligent compensation system for pressure sensor detection.
Background
A pressure sensor is a device or apparatus that senses a pressure signal and converts the pressure signal to a usable output electrical signal according to a certain law. Pressure sensors are generally composed of a pressure sensitive element and a signal processing unit. Pressure sensors can be classified into gauge pressure sensors, differential pressure sensors, and absolute pressure sensors, according to the type of test pressure. The pressure sensor is the most commonly used sensor in industrial practice, is widely applied to various industrial self-control environments, and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent building, production self-control, aerospace, military industry, petrochemical industry, oil well, electric power, ships, machine tools, pipelines and the like.
Chinese patent publication No.: CN104776956a discloses a pressure sensor testing device, which comprises an upper computer, a data acquisition system, a signal conditioning circuit, a power circuit, a precision pressure sensor, a pressure sensor to be tested, an air pump, a four-way joint, a three-way joint and an air storage tank; the data acquisition system is connected with the upper computer in a two-way communication manner, the signal conditioning circuit is connected with the data acquisition system in a two-way communication manner, the power supply circuit is respectively and electrically connected with the air pump and the signal conditioning circuit, the precise pressure sensor, the pressure sensor to be measured and the air pump are respectively connected with the signal conditioning circuit in a telecommunication manner, the air pump, the precise pressure sensor and the pressure sensor to be measured are respectively connected with the four-way connector through air paths, the other interface of the four-way connector is connected with the three-way connector, and the other interface of the three-way connector is connected with the air storage tank.
Because the pressure sensor may have different values of deviation under different temperature and pressure conditions, a single evaluation criterion cannot perform good evaluation on the quality of the pressure sensor.
Disclosure of Invention
Therefore, the invention provides an intelligent compensation system for detecting a pressure sensor, which is used for solving the problem that in the prior art, because the pressure sensor is different in temperature and pressure, the deviation value is possibly different, and the quality of the pressure sensor cannot be well evaluated by a single evaluation standard.
To achieve the above object, the present invention provides an intelligent compensation system for pressure sensor detection, comprising,
The shell is internally provided with a cavity capable of being closed;
The pressure sensor fixing groove is arranged in the shell and is used for placing a pressure sensor to be detected;
the auxiliary sensor fixing grooves are provided with a plurality of standard pressure sensors which are positioned around the pressure sensor fixing grooves and used for placing auxiliary monitoring; the pressure sensor fixing grooves are respectively flush with the top and the bottom of each auxiliary sensor fixing groove in the horizontal direction;
A stress division plate which is arranged above the pressure sensor fixing groove and each auxiliary sensor fixing groove, and the stress division plate can be attached to the upper surface of each fixing groove;
A temperature adjusting unit provided inside the housing for an in-housing temperature;
the pressurizing column is arranged above the stress division plate and is used for pressurizing the stress division plate;
The control module is used for controlling the working modes of the pressurizing column and the temperature adjusting unit to adjust;
A pressure data verification unit connected to each of the standard pressure sensors prevented from being in each of the auxiliary sensor fixing grooves, for verifying the standard pressure sensor or the pressurizing column;
The data analysis module is respectively connected with the temperature detection unit, the pressure sensor to be detected and each standard pressure sensor, and is used for carrying out compensation calculation on the pressure data and grading the pressure sensor to be detected.
The intelligent compensation system also comprises a control unit,
The pressure sensor fixing grooves and the auxiliary sensor fixing grooves are formed in the sliding table;
The sliding rail is arranged below the sliding table and is positioned at the bottom of the cavity, and the sliding table can move on the sliding rail;
The sliding table can move along the sliding rail when the opening and closing device is opened, so that the pressure sensor fixing grooves and the auxiliary sensor fixing grooves can move to the outside of the shell; when the opening and closing device is closed, a closed cavity is formed inside the shell; an opening and closing shaft is arranged between the shells of the opening and closing device;
The first limiting block is arranged on one side of the sliding rail and used for limiting the sliding table to move in the shell when the opening and closing device is closed;
the second limiting block is arranged on the sliding rail and is close to one side of the opening and closing device, and the second limiting block is used for limiting the whole sliding table to scratch the shell when the opening and closing device is opened;
A first lifting rod is arranged in the first limiting block;
and a second lifting rod is arranged in the second limiting block.
The intelligent compensation system also comprises a control unit,
The piston unit is arranged on the side surface of the sliding rail, the first limiting block and the second limiting block are arranged at two ends of the piston unit, a piston cavity and a piston are arranged in the piston unit, hydraulic fluid is filled in the piston cavity, and when the piston moves in the piston cavity, the positions of the first lifting rod and the second lifting rod can be changed;
One end of the connecting rod is arranged outside the piston cavity, and the other end of the connecting rod is connected with the piston;
And one end of the motion steering device is connected with the opening and closing shaft, and the other end of the motion steering device is connected with the connecting rod arranged outside the piston cavity, so that the connecting rod can be driven to perform linear motion when the opening and closing shaft performs rotational motion.
Further, the number of the auxiliary sensor fixing grooves is even, the auxiliary sensor fixing grooves are uniformly distributed around the pressure sensor fixing grooves, a standard pressure sensor is arranged in each auxiliary sensor fixing groove, and the pressure data checking unit is used for numbering each standard pressure sensor.
Further, the control module can control the pressurizing column to pressurize the stress division plate when the pressure sensor to be detected is not placed in the pressure sensor fixing groove, and each standard pressure sensor detects the pressure received by the standard pressure sensor and transmits the detection result to the pressure data verification unit so as to verify the standard pressure sensor or the pressurizing column.
Furthermore, the pressure data verification unit verifies each standard pressure sensor by calculating the average value of the data acquired by each standard pressure sensor, and a standard verification score calculation adjustment value which can change along with the average value is arranged in the verification process.
Further, the pressure data verification unit verifies the pressure column by calculating an average value of data acquired by each standard pressure sensor, and a pressure column deviation evaluation value capable of changing along with the average value is set in the verification process.
Further, when the pressure sensors to be detected meet the condition that the standard pressure sensors and the pressurizing column are qualified in verification, the pressure sensors to be detected are placed in the pressure sensor fixing grooves;
The control module controls the temperature regulating unit to heat the inside of the shell forming the closed cavity to a preset temperature, controls the pressurizing column to pressurize the stress spacing plate, and the data analysis module obtains the pressure value of the pressure sensor to be detected and the pressure value of each standard pressure sensor, and analyzes the working state of the temperature regulating unit through the pressure value of each standard pressure sensor to determine the working state of the temperature regulating unit.
Further, after the working state of the temperature adjusting unit is determined to be good, the pressure value of the standard pressure sensor is compared with the pressure value of the pressure sensor to be detected, and the accuracy of the pressure sensor to be detected at a single preset temperature and a preset pressure is determined.
Further, the data analysis module acquires the accuracy of the pressure sensor to be detected at different preset temperatures and preset pressures, and classifies the quality of the pressure sensor to be detected according to the acquired results.
Compared with the prior art, the method has the beneficial effects that by arranging the standard pressure sensor, when the sensor to be detected is determined, whether the working state of other components meets the standard can be synchronously determined, so that when the sensor to be detected is determined, the working environment of the sensor to be detected is the standard preset environment, the temperature and pressure conditions of the pressure sensor are reasonably controlled, and the quality evaluation of the pressure sensor is more accurate.
Further, through setting up slide rail and stop device, the position that is convenient for pressure sensor detects time is prescribe a limit to, increases the accuracy of detection, simultaneously, when the closed open and shut of opening and shutting device closed, adjusts the state of stopper, has ensured the security of detection.
Furthermore, the opening and closing device and the limiting device are controlled in a linkage mode through the hydraulic structure, and safety in the detection process is further improved.
Furthermore, the standard pressure sensors which are not in the working state are reasonably determined by numbering the standard pressure sensors, so that the verification time is shortened.
Further, when the quality of the pressure sensor to be detected is detected, the standard pressure sensors and the pressurizing column are verified, so that the standard pressure sensors can be guaranteed to be in a normal deviation range, the comparison result is more accurate when the detection data of the pressure sensor to be detected is compared with the detection data of the pressure sensor to be detected, and the accuracy of the detection result is improved.
Further, the difference degree of the detection data between the standard pressure sensors is judged by calculating the difference value of the average value and the data detected by each standard pressure sensor, and if the difference degree of the data is too large, the difference between at least one detection data and other detection data is indicated, so that the deduction is carried out, the standard pressure sensors possibly have problems, and the accuracy of the judgment of the detection data of the pressure sensors to be detected is ensured.
Further, when the standard pressure sensor is verified, the value of the standard verification score calculation adjustment value is related to the value of the average value, when the value of the average value is smaller, the value of the average value is a certain value, when the value of the average value is increased to a certain degree, the value of the average value is positively related to the value of the average value, and gradually approaches to a certain value, and the accurate judgment of the detection data of the pressure sensor to be detected is ensured through the regulation and control of the value of the standard verification score calculation adjustment value.
And further, when the standard pressure sensors are qualified in verification, the pressurization condition is verified, the qualification of the pressurization column is ensured, and the accuracy of the detection data of the pressure sensors to be detected is further ensured.
Further, the pressure column deviation evaluation value is related to the average value, when the average value is smaller, the value is a certain value, when the value is increased to a certain degree, the value is positively related to the average value and gradually approaches to a certain value, and the accuracy of the subsequent judgment of the detection data of the pressure sensor to be detected is ensured through the regulation and control of the pressure column deviation evaluation value.
Further, the working state of the temperature adjusting unit is judged, so that the qualification of the temperature adjusting unit is guaranteed, and the accuracy of the judgment of the detection data of the pressure sensor to be detected later is further guaranteed.
Further, through counting the accuracy of different preset temperatures and preset pressures, the condition of the pressure sensor to be detected is comprehensively judged, so that the detection result is more accurate.
Further, the detection result of the pressure sensor is classified by setting a preset quality score, so that the quality of the pressure sensor is better evaluated.
Drawings
FIG. 1 is a schematic diagram of an intelligent compensation system for pressure sensor detection in an embodiment;
FIG. 2 is an enlarged schematic diagram of the bottom structure of the intelligent compensation system for pressure sensor detection in an embodiment;
fig. 3 is an enlarged schematic diagram of a top view structure of the sliding table in the embodiment.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1-3, fig. 1 is a schematic structural diagram of an intelligent compensation system for detecting a pressure sensor according to an embodiment; FIG. 2 is an enlarged schematic diagram of the bottom structure of the intelligent compensation system for pressure sensor detection in an embodiment; fig. 3 is an enlarged schematic diagram of a top view structure of the sliding table in the embodiment.
The invention provides an intelligent compensation system for pressure sensor detection, which comprises,
A housing 1, the interior of which is a closable cavity;
a pressure sensor fixing groove 2 which is arranged inside the shell 1 and is used for placing a pressure sensor to be detected;
An auxiliary sensor fixing groove 3 which is provided with a plurality of standard pressure sensors positioned around the pressure sensor fixing groove 2 and used for placing auxiliary monitoring; the pressure sensor fixing grooves 2 are respectively flush with the top and the bottom of each auxiliary sensor fixing groove 3 in the horizontal direction;
A stress spacer 4 provided above the pressure sensor fixing grooves 2 and the auxiliary sensor fixing grooves 3, the stress spacer 4 being capable of being bonded to the upper surfaces of the fixing grooves;
A temperature adjusting unit 5 provided inside the housing 1 for adjusting the temperature inside the housing 1;
A pressurizing column 6 provided above the stress-dividing plate 4 for pressurizing the stress-dividing plate 4;
A control module 7 for controlling the operation modes of the pressurizing column 6 and the temperature adjusting unit 5 to be adjusted;
A pressure data verification unit 8 connected to each of the standard pressure sensors prevented from being in each of the auxiliary sensor fixing grooves 3, for verifying the standard pressure sensor or the pressurizing column 6;
The data analysis module 9 is respectively connected with the temperature detection unit, the pressure sensor to be detected and each standard pressure sensor, and is used for carrying out compensation calculation on the pressure data and grading the pressure sensor to be detected.
According to the application, by setting the standard pressure sensor, when the sensor to be detected is judged, whether the working states of other components reach the standard can be synchronously judged, so that when the sensor to be detected is judged, the working environments of the sensor to be detected are standard preset environments, the temperature and pressure conditions of the pressure sensor are reasonably controlled, and the quality evaluation of the pressure sensor is more accurate.
The auxiliary sensor fixing grooves 3 are arranged in an even number and uniformly distributed around the periphery of the pressure sensor fixing groove 2.
The intelligent compensation system further comprises,
A sliding table 10, wherein the pressure sensor fixing groove 2 and each auxiliary sensor fixing groove 3 are arranged on the sliding table 10;
A slide rail 11 disposed below the slide table 10 and located at the bottom of the cavity, the slide table 10 being movable on the slide rail 11;
An opening and closing device 12 provided at one side of the housing 1, wherein when the opening and closing device 12 is opened, the sliding table 10 can move along the sliding rail 11, so that the pressure sensor fixing groove 2 and each auxiliary sensor fixing groove 3 can move to the outside of the housing 1; when the opening and closing device 12 is closed, a closed cavity is formed inside the shell 1; an opening and closing shaft is arranged between the opening and closing device 12 and the shell 1;
A first stopper 13 provided at one side of the slide rail 11 for restricting movement of the slide table 10 inside the housing 1 when the opening and closing device 12 is closed;
a second limiting block 14, which is disposed on the sliding rail 11 and is close to one side of the opening and closing device 12, and is used for limiting the sliding table 10 to integrally scratch the casing 1 when the opening and closing device 12 is opened;
A first lifting rod 131 is arranged in the first limiting block 13;
A second lifting rod 141 is disposed in the second limiting block 14.
Through setting up slide rail 11 and stop device, the position that is convenient for pressure sensor detects time is prescribe a limit to, increases the accuracy of detection, simultaneously, when the closed open and shut of opening and shutting device 12, adjusts the state of stopper, has ensured the security of detection.
The intelligent compensation system further comprises,
The piston unit 16 is arranged on the side surface of the sliding rail 11, the first limiting block 13 and the second limiting block 14 are arranged at two ends of the piston unit 16, a piston cavity and a piston are arranged in the piston unit 16, hydraulic liquid is filled in the piston cavity, and when the piston moves in the piston cavity, the positions of the first lifting rod 131 and the second lifting rod 141 can be changed;
A connecting rod 17, one end of which is arranged outside the piston cavity, and the other end of which is connected with the piston;
and one end of the motion steering device 15 is connected with the opening and closing shaft, and the other end of the motion steering device is connected with the connecting rod 17 arranged outside the piston cavity, so that the connecting rod 17 can be driven to perform linear motion when the opening and closing shaft performs rotational motion.
The opening and closing device 12 and the limiting device are controlled in a linkage way through a hydraulic structure, so that safety in the detection process is further improved.
In this embodiment, the number of the auxiliary sensor fixing grooves is set to be 4, and one standard pressure sensor is set in each auxiliary sensor fixing groove and is respectively recorded as a first standard pressure sensor A1, a second standard pressure sensor A2, a third standard pressure sensor A3 and a fourth standard pressure sensor A4, wherein the pressure value detected by the first standard pressure sensor A1 is recorded as a first standard check detection pressure B1, the pressure value detected by the second standard pressure sensor A2 is recorded as a second standard check detection pressure B2, the pressure value detected by the third standard pressure sensor A3 is recorded as a third standard check detection pressure B3, and the pressure value detected by the fourth standard pressure sensor A4 is recorded as a fourth standard check detection pressure B4.
And each standard pressure sensor is numbered, so that the standard pressure sensor which is not in a working state is reasonably determined, and the verification time is shortened.
The control module can control the pressurizing column to pressurize the stress division plate when the pressure sensor to be detected is not placed in the pressure sensor fixing groove, and each standard pressure sensor detects the pressure received by the standard pressure sensor and transmits the detection result to the pressure data verification unit so as to verify the standard pressure sensor or the pressurizing column.
When the quality of the pressure sensor to be detected is detected, the standard pressure sensors and the pressurizing column are verified, so that the standard pressure sensors can be ensured to be in a normal deviation range, the comparison result is more accurate when the detection data of the pressure sensor to be detected is compared with the detection data of the pressure sensor to be detected, and the accuracy of the detection result is improved.
The pressure data checking unit acquires the standard check detection pressure detected by each standard pressure sensor, calculates a standard check score P0, sets,
BP＝(B1+B2+B3+B4)÷4；
BP is the average value of standard check detection pressures, and alpha is the standard check score calculation adjustment value.
A verification scoring basic value PZ is arranged in the pressure data verification unit,
If P0 is more than Pz, the pressure data verification unit judges that unqualified sensors exist in each standard pressure sensor and the standard pressure sensors need to be replaced;
and if the P0 is less than or equal to Pz, the pressure data verification unit judges that each standard pressure sensor is qualified in verification.
And determining the difference degree of the detection data between the standard pressure sensors by calculating the difference value between the average value and the data detected by each standard pressure sensor, and if the difference degree of the data is too large, indicating that at least one detection data is different from other detection data, thereby deducing that the standard pressure sensor possibly has a problem, and ensuring that the detection data of the pressure sensor to be detected is accurately determined later.
The value of the standard verification score calculation adjustment value alpha is related to the BP value, and the larger the BP value is, the larger the adjustment value alpha is calculated;
Setting up
Wherein b is a numerical determination segmentation value of the standard check score calculation adjustment value α, and log 2 b=0.8.
When the standard pressure sensor is calibrated, the standard calibration score calculation adjustment value is related to the average value, when the average value is smaller, the average value is a certain value, when the value is increased to a certain degree, the average value is positively related to the average value, and gradually approaches to a certain value, and the accurate judgment of the detection data of the pressure sensor to be detected is ensured through the regulation and control of the standard calibration score calculation adjustment value.
The pressure data verification unit verifies the pressurization condition of the pressurization column when the standard pressure sensors are verified to be qualified, the control module inputs the pressurization numerical value BJ to the pressurization column, the pressure data verification unit calculates the absolute value Bc, bc= |BJ-BP| of the difference between the pressurization numerical value BJ and the standard verification detection pressure average value BP, the pressure data verification unit is internally provided with a pressurization column deviation evaluation value Bz,
If Bc is more than or equal to Bz, the pressure data verification unit judges that the verification of the pressurizing column is unqualified;
And if Bc is smaller than Bz, the pressure data verification unit judges that the pressurization column is qualified in verification.
And when the standard pressure sensors are qualified in verification, the pressurization condition is verified, the qualification of the pressurization column is ensured, and the accuracy of the detection data judgment of the pressure sensors to be detected is further ensured.
The value of the pressurization column deviation evaluation value Bz is correlated with the BP value,
The setting is carried out such that,
Where z is a numerical determination division value of the pressurization column deviation evaluation value Bz, and log 3 z=2.
The pressure column deviation evaluation value is related to the average value, when the average value is smaller, the average value is a certain value, when the average value is increased to a certain degree, the average value is positively related to the average value, and gradually approaches to a certain value, and the accuracy of the subsequent judgment of the detection data of the pressure sensor to be detected is ensured through the regulation and control of the pressure column deviation evaluation value.
And when the pressure sensors to be detected meet the condition that each standard pressure sensor and each pressurizing column are qualified in verification, placing the pressure sensors into the pressure sensor fixing grooves.
The control module controls the temperature regulating unit to heat the inside of the shell forming the closed cavity to a preset temperature, controls the pressurizing column to pressurize the stress spacing plate, the data analysis module obtains the pressure value of the pressure sensor to be detected, obtains the pressure value of each standard pressure sensor, analyzes the working state of the temperature regulating unit through the pressure value of each standard pressure sensor, compares the pressure value of the standard pressure sensor with the pressure value of the pressure sensor to be detected after determining that the working state of the temperature regulating unit is good, and judges the accuracy of the pressure sensor to be detected at a single preset temperature and a preset pressure;
The control module controls the temperature regulating unit to heat the inside of the shell to a first preheating temperature H1, controls the pressurizing column to pressurize the stress division plate by a first pressurizing value BQ1, the data analysis module obtains the pressure value of each standard pressure sensor and calculates a standard check detection pressure average value BP ', the data analysis module calculates absolute difference values Bs, bs= |BP ' -BQ1| of the pressure average value BP ' and the first pressurizing value BQ1,
If Bs is less than or equal to Bsz, judging that the working state of the temperature regulating unit is good;
if Bs is larger than Bsz, judging that the working state of the temperature regulating unit is unqualified;
Bsz is a temperature adjustment unit deviation determination value.
The working state of the temperature adjusting unit is judged, so that the working qualification of the temperature adjusting unit is guaranteed, and the accuracy of the judgment of the detection data of the pressure sensor to be detected later is further guaranteed.
After the working state of the temperature regulating unit is determined to be good, the data analysis module acquires the pressure value J1 of the pressure sensor to be detected, calculates the absolute value Bx, bx= |BP '-J1| of the difference value between the pressure average value BP' and the pressure value J1, judges that the quality of the pressure sensor to be detected is qualified under the current temperature and the pressure if Bx is less than or equal to Bjz, calculates the accuracy Z11 of the pressure sensor to be detected under the current temperature and the pressure,
The data analysis module acquires the accuracy of the pressure sensor to be detected at different preset temperatures and preset pressures, and classifies the quality of the pressure sensor to be detected according to the acquired results.
The control module is internally provided with a first preheating temperature H1, a second preheating temperature H2, a third preheating temperature H3, a first pressurizing value BQ1 and a second pressurizing value BQ2, the control module can select any one preheating temperature and any one pressurizing value to regulate and control the working modes of the temperature regulating unit and the pressurizing column, and perform pairwise queue matching, and the data analysis module calculates the accuracy Zmk, m=1, 2 and 3 of the pressure sensor to be detected when the mth preheating temperature Hm and the kth pressurizing value BQk; k=1, 2.
The condition of the pressure sensor to be detected is comprehensively judged by counting the accuracy of different preset temperatures and preset pressures, so that the detection result is more accurate.
The data analysis module calculates a quality score Fp of the pressure sensor to be detected
Fp＝Z11+Z12+Z21+Z22+Z31+Z32
The data analysis module is internally provided with a first preset quality score F1 and a second preset quality score F2;
if Fp is less than or equal to F1, the data analysis module judges that the quality of the pressure sensor to be detected is unqualified;
If F1 is more than Fp and less than or equal to F2, the data analysis module judges that the quality of the pressure sensor to be detected is qualified;
If Fp is more than F2, the data analysis module judges that the quality of the pressure sensor to be detected is good.
And the detection result of the pressure sensor is graded by setting a preset quality score, so that the quality of the pressure sensor is better evaluated.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An intelligent compensation system for pressure sensor detection, comprising,
The shell is internally provided with a cavity capable of being closed;
The pressure sensor fixing groove is arranged in the shell and is used for placing a pressure sensor to be detected;
the auxiliary sensor fixing grooves are provided with a plurality of standard pressure sensors which are positioned around the pressure sensor fixing grooves and used for placing auxiliary monitoring; the pressure sensor fixing grooves are respectively flush with the top and the bottom of each auxiliary sensor fixing groove in the horizontal direction;
A stress division plate which is arranged above the pressure sensor fixing groove and each auxiliary sensor fixing groove, and the stress division plate can be attached to the upper surface of each fixing groove;
A temperature adjusting unit provided inside the housing for an in-housing temperature;
the pressurizing column is arranged above the stress division plate and is used for pressurizing the stress division plate;
The control module is used for controlling the working modes of the pressurizing column and the temperature adjusting unit to adjust;
A pressure data verification unit connected to each of the standard pressure sensors prevented from being in each of the auxiliary sensor fixing grooves, for verifying the standard pressure sensor or the pressurizing column;
The data analysis module is respectively connected with the temperature detection unit, the pressure sensor to be detected and each standard pressure sensor, and is used for carrying out compensation calculation on the pressure data and grading the pressure sensor to be detected.
2. The intelligent compensation system for pressure sensor detection of claim 1, further comprising,
The pressure sensor fixing grooves and the auxiliary sensor fixing grooves are formed in the sliding table;
The sliding rail is arranged below the sliding table and is positioned at the bottom of the cavity, and the sliding table can move on the sliding rail;
The sliding table can move along the sliding rail when the opening and closing device is opened, so that the pressure sensor fixing grooves and the auxiliary sensor fixing grooves can move to the outside of the shell; when the opening and closing device is closed, a closed cavity is formed inside the shell; an opening and closing shaft is arranged between the shells of the opening and closing device;
The first limiting block is arranged on one side of the sliding rail and used for limiting the sliding table to move in the shell when the opening and closing device is closed;
the second limiting block is arranged on the sliding rail and is close to one side of the opening and closing device, and the second limiting block is used for limiting the whole sliding table to scratch the shell when the opening and closing device is opened;
A first lifting rod is arranged in the first limiting block;
and a second lifting rod is arranged in the second limiting block.
3. The intelligent compensation system for pressure sensor detection of claim 2, further comprising,
The piston unit is arranged on the side surface of the sliding rail, the first limiting block and the second limiting block are arranged at two ends of the piston unit, a piston cavity and a piston are arranged in the piston unit, hydraulic fluid is filled in the piston cavity, and when the piston moves in the piston cavity, the positions of the first lifting rod and the second lifting rod can be changed;
One end of the connecting rod is arranged outside the piston cavity, and the other end of the connecting rod is connected with the piston;
And one end of the motion steering device is connected with the opening and closing shaft, and the other end of the motion steering device is connected with the connecting rod arranged outside the piston cavity, so that the connecting rod can be driven to perform linear motion when the opening and closing shaft performs rotational motion.
4. The intelligent compensation system for pressure sensor detection according to claim 3, wherein the number of the auxiliary sensor fixing grooves is even, the auxiliary sensor fixing grooves are uniformly distributed around the pressure sensor fixing grooves, one standard pressure sensor is arranged in each auxiliary sensor fixing groove, and the pressure data checking unit is used for numbering each standard pressure sensor.
5. The intelligent compensation system for pressure sensor detection according to claim 4, wherein the control module is capable of controlling the pressurizing column to pressurize the stress spacer when the pressure sensor to be detected is not placed in the pressure sensor fixing groove, and each standard pressure sensor detects the pressure received by itself and transmits the detection result to the pressure data verification unit to verify the standard pressure sensor or the pressurizing column.
6. The intelligent compensation system for pressure sensor detection according to claim 5, wherein the pressure data verification unit verifies each standard pressure sensor by calculating an average value of data collected by each standard pressure sensor, and a standard verification score calculation adjustment value capable of changing with the average value is set in the verification process.
7. The intelligent compensation system for pressure sensor detection according to claim 5, wherein the pressure data verification unit verifies the pressure column by calculating an average value of data collected by each of the standard pressure sensors, and a pressure column deviation evaluation value capable of changing with the average value is provided during verification.
8. The intelligent compensation system for pressure sensor detection according to claim 7, wherein the pressure sensor to be detected is placed in the pressure sensor fixing groove when each of the standard pressure sensors and the pressurizing column are qualified;
The control module controls the temperature regulating unit to heat the inside of the shell forming the closed cavity to a preset temperature, controls the pressurizing column to pressurize the stress spacing plate, and the data analysis module obtains the pressure value of the pressure sensor to be detected and the pressure value of each standard pressure sensor, and analyzes the working state of the temperature regulating unit through the pressure value of each standard pressure sensor to determine the working state of the temperature regulating unit.
9. The intelligent compensation system for pressure sensor detection according to claim 8, wherein after the temperature adjusting unit is determined to be in good working state, the pressure value of the standard pressure sensor is compared with the pressure value of the pressure sensor to be detected, and the accuracy of the pressure sensor to be detected at a single preset temperature and a preset pressure is determined.
10. The intelligent compensation system for pressure sensor detection according to claim 9, wherein the data analysis module obtains accuracy of the pressure sensor to be detected at different preset temperatures and preset pressures, and classifies the quality of the pressure sensor to be detected according to the obtained results.
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