CN118033520A - Superconducting sensor precision detection device, method and system - Google Patents
Superconducting sensor precision detection device, method and system Download PDFInfo
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Abstract
The application provides a device, a method and a system for detecting the precision of a superconducting sensor, which relate to the technical field of sensor detection, wherein the device comprises: the power supply module is used for providing direct current voltage, and the adjustable resistance module is used for outputting resistors with different resistance values; the superconducting sensor is sleeved on the periphery of the test loop and is used for measuring the current value of the test loop; the detection module is electrically connected with the power supply module, the adjustable resistance module and the superconducting sensor, wherein the detection module is used for detecting the precision of the superconducting sensor according to the target voltage value provided by the power supply module, the target resistance value provided by the adjustable resistance module and the measured current value of the superconducting sensor. By implementing the technical scheme provided by the application, the aim of effectively detecting the precision of the superconducting sensor can be fulfilled.
Description
Technical Field
The application relates to the technical field of sensor detection, in particular to a device, a method and a system for detecting the precision of a superconducting sensor.
Background
In a medium-high voltage power supply and distribution system (6 KV, 10KV and 35KV systems), insulating direct current flows out from power supply equipment and a power supply line, and the insulating performance of the power system is required to be monitored in real time through current detection; in the cable loop, the feed-out cable conductor has high kiloampere alternating current, the working state of the superconducting sensor (or the magnetic superconducting micro-direct current sensor) is greatly changed, the environment of the large alternating current loop is complex, the requirement on detection equipment is high, for example, the superconducting sensor (or the magnetic superconducting micro-direct current sensor) can be used for current detection, the general insulating direct current signal is weak, if weak current flowing out of the magnetic superconducting is detected, the requirement on the precision of the sensor equipment is high, and therefore, the accurate detection of the superconducting sensor is particularly necessary, but an effective detection method is not shown in the related technology.
Aiming at the technical problem that the accuracy of the superconducting sensor cannot be effectively detected in the related technology, no effective solution is proposed at present.
Disclosure of Invention
The application provides a device, a method and a system for detecting the precision of a superconducting sensor, which at least solve the technical problem that the precision of the superconducting sensor cannot be effectively detected in the related technology.
In a first aspect, the present application provides a superconducting sensor accuracy detecting device, comprising: the power supply module is used for providing direct current voltage, and the adjustable resistance module is used for outputting resistors with different resistance values; the superconducting sensor is sleeved on the periphery of the test loop and is used for measuring the current value of the test loop; the detection module is electrically connected with the power supply module, the adjustable resistance module and the superconducting sensor, wherein the detection module is used for detecting the precision of the superconducting sensor according to the target voltage value provided by the power supply module, the target resistance value provided by the adjustable resistance module and the measured current value of the superconducting sensor.
By adopting the technical scheme, the power supply module and the adjustable resistor module form a test loop, the superconducting sensor is sleeved on the periphery of the test loop, the superconducting sensor can measure the current value of the test loop, the detection module can acquire the target voltage value output by the power supply module, the target resistance value output by the adjustable resistor module and the measured current value measured by the superconducting sensor, and the detection module detects the precision of the superconducting sensor according to the target voltage value, the target resistance value and the measured current value, so that the aim of detecting the precision of the superconducting sensor is fulfilled, and the technical problem that the precision of the superconducting sensor cannot be effectively detected in the related art is solved.
Optionally, the superconducting sensor accuracy detecting device further includes: the first switch module is connected in series in the test loop, and is electrically connected with the detection module, wherein the detection module is also used for controlling the first switch module to be in a conducting state or a disconnecting state.
By adopting the technical scheme, the detection module can control whether the test loop is conducted or not through the first switch module, so that the aim of reliably controlling the superconducting sensor precision detection device is fulfilled.
Optionally, the detection module is further configured to control the adjustable resistance module to adjust and output a set of resistance values, where the set of resistance values includes N resistance values output by the adjustable resistance module at N times, the target resistance value includes a set of resistance values, the first switch module is in a conducting state at N times, and N is a positive integer greater than or equal to 1; the measured current values comprise N current values, wherein the N current values comprise current values of a test loop respectively measured by the superconducting sensor at N moments; the detection module judges the precision grade of the superconducting sensor according to the target voltage value, the N resistance values and the N current values.
By adopting the technical scheme, a plurality of different testing conditions can be set for the testing loop, for example, the adjustable resistance module is set to output N resistance values respectively, meanwhile, the superconducting sensor can also obtain N current values, and then the precision of the superconducting sensor is judged according to the target voltage value output by the power supply module, the N resistance values and the N current values measured by the superconducting sensor. Erroneous judgment possibly caused by single test is avoided, and the accuracy of the superconducting sensor can be judged more accurately through multiple groups of test data. The purpose of effectively judging the precision of the superconducting sensor is achieved.
Optionally, the superconducting sensor accuracy detecting device further includes: the second switch module is connected between the power supply module and the adjustable resistor module, the adjustable resistor module comprises M resistors, one end of each resistor in the M resistors is connected together and connected to one end of the power supply, the detection module is used for controlling the second switch module to be connected with any resistor in the M resistors, and M is a positive integer greater than or equal to 1.
By adopting the technical scheme, the adjustable resistor module can comprise M resistors, the detection module can control the second switch module to be connected with any one of the M resistors, so that the test loop can respectively provide M different current values, and the accuracy of the superconducting sensor is judged by combining the current values respectively measured by the superconducting sensor.
Optionally, the detection module is further configured to control the adjustable resistance module to adjust and output a set of resistance values, where the set of resistance values includes M resistance values output by the adjustable resistance module at M times, the target resistance value includes a set of resistance values, the second switch module is turned on with the ith resistance at the ith time, the ith time is any one of the M times, the M resistances include the ith resistance, M is a positive integer greater than or equal to 1, and i is a positive integer greater than or equal to 1 and less than or equal to M; the measured current values comprise M current values, wherein the M current values comprise current values of a test loop respectively measured by the superconducting sensor at M moments; the detection module judges the precision grade of the superconducting sensor according to the target voltage value, the M resistance values and the M current values.
By adopting the technical scheme, the detection module can control the adjustable resistance module to respectively provide different resistance values at M moments, namely M resistance values, meanwhile, the superconducting sensor also respectively measures M current values at M moments, and then the precision of the superconducting sensor is judged according to the target voltage value, the M resistance values and the M current values. The method and the device can avoid misjudgment caused by single test, and can judge the precision of the superconducting sensor more accurately through multiple groups of test data.
Optionally, the superconducting sensor accuracy detecting device further includes: the display module is electrically connected with the detection module and is used for displaying a target voltage value, a target resistance value, a measured current value and a detection result, and the detection result comprises at least one of the following components: a first result, wherein the first result is used for indicating whether the precision of the superconducting sensor meets the standard; and a second result, wherein the second result is used to represent a level of accuracy of the superconducting sensor.
By adopting the technical scheme, the superconducting sensor detection device further comprises a display module, the display module is electrically connected with the detection module, the display module can display the target voltage value output by the power module in real time, the target resistance value provided by the adjustable resistance module in real time and the measured current value measured by the superconducting sensor, and the display module can also display the detection result, for example, whether the precision of the superconducting sensor meets the standard or not and/or the precision grade of the superconducting sensor can be displayed. The purpose of displaying the precision detection result of the superconducting sensor is achieved.
In a second aspect of the present application, there is also provided a method for detecting accuracy of a superconducting sensor, comprising: obtaining a target voltage value and a target resistance value, wherein the target voltage value is a voltage value provided by a power supply module, the target resistance value is a resistance value output by an adjustable resistance module, and the power supply module and the adjustable resistance module are connected in series to form a test loop; obtaining a measuring current value, wherein the measuring current value is obtained by measuring a current value of a test loop through a superconducting sensor, and the superconducting sensor is sleeved on the periphery of the test loop; and detecting the precision of the superconducting sensor according to the target voltage value, the target resistance value and the measured current value.
By adopting the technical scheme, the target voltage value provided by the power supply module and the target resistance value output by the adjustable resistance module are obtained, wherein the power supply module and the adjustable resistance module are connected in series to form a test loop, the measured current value obtained by measuring the test loop by the superconducting sensor is also obtained, and then the precision of the superconducting sensor is detected according to the target voltage value, the target resistance value and the measured current value. The purpose of checking the detection accuracy of the superconducting sensor is achieved, and the technical problem that the accuracy of the superconducting sensor cannot be effectively detected in the related technology is solved.
Optionally, detecting the accuracy of the superconducting sensor according to the target voltage value, the target resistance value, and the measured current value includes: obtaining a theoretical current value according to the target voltage value and the target resistance value; determining an absolute value of an error between the theoretical current value and the measured current value; under the condition that the ratio between the absolute value of the error and the theoretical current value is smaller than or equal to a preset ratio threshold value, judging that the precision of the superconducting sensor meets the standard; and under the condition that the ratio between the absolute value of the error and the theoretical current value is larger than a preset ratio threshold value, judging that the accuracy of the superconducting sensor does not reach the standard.
By adopting the technical scheme, the theoretical current value is obtained according to the target voltage value and the target resistance value, the absolute value of the error between the theoretical current value and the measured current value measured by the superconducting sensor is determined, when the ratio of the absolute value of the error to the theoretical current value is smaller than or equal to the preset proportional threshold value, the accuracy of the superconducting sensor is judged to be up to standard, and when the ratio of the absolute value of the error to the theoretical current value is larger than the preset proportional threshold value, the accuracy of the superconducting sensor is judged to be not up to standard, namely the aim of judging whether the accuracy of the superconducting sensor is up to standard is fulfilled.
Optionally, detecting the accuracy of the superconducting sensor according to the target voltage value, the target resistance value, and the measured current value includes: and judging the precision grade of the superconducting sensor according to the target voltage value, the K resistance values and the K current values, wherein the target resistance value comprises the K resistance values respectively output by the adjustable resistance module at the K moments, the measured current value comprises the K current values respectively measured by the superconducting sensor at the K moments, and the test loop is conducted at the K moments.
By adopting the technical scheme, the superconducting sensor can measure K current values respectively corresponding to the adjustable resistance module when K different resistance values are output, and the precision grade of the superconducting sensor is judged according to the target voltage value, the K resistance values and the K current values. The purpose of judging the precision grade of the superconducting sensor is achieved.
Optionally, determining the precision level of the superconducting sensor according to the target voltage value, the K resistance values and the K current values includes: obtaining K error values according to a target voltage value, K resistance values and K current values, wherein the j error values are used for representing absolute values of differences between a j theoretical current value and a j measured current value, the j theoretical current value is calculated according to the target voltage value and the j resistance value, the j measured current value is a current value of a test loop measured by a superconducting sensor at the j moment, the K error values comprise the j error values, the K resistance values comprise the j resistance values, and j is a positive integer which is greater than or equal to 1 and less than or equal to K; under the condition that the K error values are smaller than or equal to a first preset threshold value, judging the precision grade of the superconducting sensor to be a first grade; and under the condition that the K error values are larger than a first preset threshold value and smaller than or equal to a second preset threshold value, judging the precision grade of the superconducting sensor to be a second grade, wherein the precision corresponding to the first grade is higher than the second grade.
By adopting the technical scheme, K error values can be obtained according to the target voltage value, K resistance values and K current values, and then the K error values are compared with a first preset threshold value and a second preset threshold value, so that the accuracy grade of the superconducting sensor is judged to be the first grade or the second grade. The purpose of judging the specific precision grade of the superconducting sensor is achieved.
In a third aspect of the present application, there is also provided a superconducting sensor accuracy detecting system including: the device comprises a constant voltage source, an adjustable rheostat, a superconducting sensor and detection equipment, wherein the constant voltage source is used for providing direct current voltage; the adjustable rheostat is connected with the constant voltage source in series and forms a test loop, and the adjustable rheostat is used for providing resistors with different resistance values; the superconducting sensor is sleeved on the periphery of the test loop and is used for measuring the current value of the test loop; the detection equipment is connected with the constant voltage source, the adjustable rheostat and the superconducting sensor, and is used for obtaining a target voltage value provided by the constant voltage source, a target resistance value provided by the adjustable rheostat and a measured current value of the superconducting sensor, and detecting the precision of the superconducting sensor according to the target voltage value, the target resistance value and the measured current value.
In a fourth aspect of the application, there is also provided an electronic device comprising a memory and a processor, the memory having stored thereon a computer program, the processor implementing the method of any of the above when executing the program.
In a fifth aspect of the application, there is also provided a computer readable storage medium storing instructions that, when executed, perform the method of any of the above.
In summary, one or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
1. The purpose of checking the detection accuracy of the superconducting sensor is achieved, and the technical problem that the accuracy of the superconducting sensor cannot be effectively detected in the related technology is solved. The purpose of displaying the precision detection result of the superconducting sensor is achieved.
2. The purpose of judging whether the precision of the superconducting sensor meets the standard is achieved, and the purpose of judging the specific precision grade of the superconducting sensor is achieved.
Drawings
FIG. 1 is a block diagram of a superconducting sensor accuracy detecting device according to an embodiment of the present application;
FIG. 2 is a block diagram of a device for detecting accuracy of a superconducting sensor according to an embodiment of the present application;
FIG. 3 is a block diagram III of a device for detecting accuracy of a superconducting sensor according to an embodiment of the present application;
FIG. 4 is a block diagram of a superconducting sensor accuracy detecting device according to an embodiment of the present application;
FIG. 5 is a block diagram of a superconducting sensor accuracy detecting device according to an embodiment of the present application;
FIG. 6 is a flow chart of a method for detecting accuracy of a superconducting sensor according to an embodiment of the present application;
Fig. 7 is a schematic diagram of a superconducting sensor accuracy detecting system according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments.
In describing embodiments of the present application, words such as "for example" or "for example" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "such as" or "for example" in embodiments of the application should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "or" for example "is intended to present related concepts in a concrete fashion.
In the description of embodiments of the application, the term "plurality" means two or more. For example, a plurality of systems means two or more systems, and a plurality of screen terminals means two or more screen terminals. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating an indicated technical feature. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
In the present application, there is provided a superconducting sensor accuracy detecting apparatus, as shown in fig. 1, comprising: the power module, the adjustable resistance module, the superconducting sensor and the detection module, wherein,
The power module is connected with the adjustable resistor module in series to form a test loop, wherein the power module is used for providing direct-current voltage, and the adjustable resistor module is used for outputting resistors with different resistance values;
The superconducting sensor is sleeved on the periphery of the test loop and is used for measuring the current value of the test loop;
The detection module is electrically connected with the power supply module, the adjustable resistance module and the superconducting sensor, wherein the detection module is used for detecting the precision of the superconducting sensor according to the target voltage value provided by the power supply module, the target resistance value provided by the adjustable resistance module and the measured current value of the superconducting sensor.
In the above embodiment, a test loop is formed by using a power module and an adjustable resistor module, as shown in fig. 1, and a superconducting sensor is sleeved on the periphery of the test loop, for example, the superconducting sensor is sleeved on the periphery of a wire of the test loop, in practical application, the superconducting sensor (or referred to as a magnetic superconducting micro-dc sensor) can be used for detecting a direct current in a high-voltage power system loop, that is, detecting a power supply line insulation current, the superconducting sensor in this embodiment can measure a current value of the test loop, the detection module can obtain a target voltage value output by the power module, a target resistance value output by the adjustable resistor module and a measured current value measured by the superconducting sensor, and then the detection module detects the precision of the superconducting sensor according to the target voltage value, the target resistance value and the measured current value, for example, or detects whether the precision of the superconducting sensor meets the standard, or detects the precision grade of the superconducting sensor, and the power module can be a standard excitation source (constant voltage source), such as 30V, or 12V (or other voltages), the adjustable resistor module can output different values, and thus the application can provide a higher precision than the actual application of the adjustable resistor module to the actual resistor module. The embodiment realizes the purpose of checking the detection accuracy of the superconducting sensor, and solves the technical problem that the detection accuracy of the superconducting sensor cannot be effectively detected in the related technology.
In an alternative embodiment, the superconducting sensor accuracy detecting device further includes: the first switch module is connected in series in the test loop, and is electrically connected with the detection module, wherein the detection module is also used for controlling the first switch module to be in a conducting state or a disconnecting state.
In the above embodiment, the detection module may control whether the test loop is turned on by using the first switch module, as shown in fig. 2, where the detection module may control the first switch module to be in a turned on (closed) or turned off (open) state, so as to achieve the purpose of reliably controlling the precision detection device of the superconducting sensor.
In an optional embodiment, the detection module is further configured to control the adjustable resistance module to adjust and output a set of resistance values, where the set of resistance values includes N resistance values output by the adjustable resistance module at N times, the target resistance value includes a set of resistance values, the first switch module is in an on state at N times, and N is a positive integer greater than or equal to 1; the measured current values comprise N current values, wherein the N current values comprise current values of a test loop respectively measured by the superconducting sensor at N moments; the detection module judges the precision grade of the superconducting sensor according to the target voltage value, the N resistance values and the N current values.
In the above embodiment, a plurality of different test conditions may be set for the test loop, as shown in fig. 3, for example, an adjustable resistor module is set to output N resistance values respectively, and at the same time, the superconducting sensor may also obtain N current values, that is, when the adjustable resistor module outputs one resistance value, the superconducting sensor may measure a corresponding current value, so N sets of test data may be obtained, and the power module is generally selected as a constant voltage source, so that the target voltage value is fixed, and optionally, the resistance value output by the adjustable resistor module may be increased gradually according to a certain proportion; and then judging the precision of the superconducting sensor according to the target voltage value output by the power supply module, the N resistance values and the N current values measured by the superconducting sensor, for example, calculating N theoretical current values of a test loop according to the target voltage value and the N resistance values, and comparing the N theoretical current values with the N current values measured by the superconducting sensor to judge the precision of the superconducting sensor. Erroneous judgment possibly caused by single test is avoided, and the accuracy of the superconducting sensor can be judged more accurately through multiple groups of test data. The purpose of effectively judging the precision of the superconducting sensor is achieved.
In an alternative embodiment, the superconducting sensor accuracy detecting device further includes: the second switch module is connected between the power supply module and the adjustable resistor module, the adjustable resistor module comprises M resistors, one end of each resistor in the M resistors is connected together and connected to one end of the power supply, the detection module is used for controlling the second switch module to be connected with any resistor in the M resistors, and M is a positive integer greater than or equal to 1.
In the above embodiment, the adjustable resistor module may include M resistors, as shown in fig. 4, and the detection module may control the second switch module to be connected with any one of the M resistors, so that the test loop may respectively provide M different current values, and the superconducting sensor may also measure the corresponding M current values, so as to determine the accuracy of the superconducting sensor in combination with the current values measured by the superconducting sensor respectively.
In an optional embodiment, the detection module is further configured to control the adjustable resistance module to adjust and output a set of resistance values, where the set of resistance values includes M resistance values output by the adjustable resistance module at M times, the target resistance value includes a set of resistance values, the second switch module is turned on with the i-th resistance at the i-th time, the i-th time is any one of the M times, the M-th resistance includes the i-th resistance, M is a positive integer greater than or equal to 1, and i is a positive integer greater than or equal to 1 and less than or equal to M; the measured current values comprise M current values, wherein the M current values comprise current values of a test loop respectively measured by the superconducting sensor at M moments; the detection module judges the precision grade of the superconducting sensor according to the target voltage value, the M resistance values and the M current values.
In the above embodiment, the detection module may control the adjustable resistor module to provide different resistance values at M times, that is, provide M resistance values, and the superconducting sensor also measures M current values at M times, and then determine the accuracy of the superconducting sensor according to the target voltage value, the M resistance values, and the M current values. The method and the device can avoid misjudgment caused by single test, and can judge the precision of the superconducting sensor more accurately through multiple groups of test data.
In an alternative embodiment, the superconducting sensor accuracy detecting device further includes: the display module is electrically connected with the detection module and is used for displaying a target voltage value, a target resistance value, a measured current value and a detection result, and the detection result comprises at least one of the following components: a first result, wherein the first result is used for indicating whether the precision of the superconducting sensor meets the standard; and a second result, wherein the second result is used to represent a level of accuracy of the superconducting sensor.
In the above embodiment, the superconducting sensor detection device further includes a display module, as shown in fig. 5, where the display module is electrically connected to the detection module, and the display module may display the target voltage value output by the power module in real time, the target resistance value provided by the adjustable resistance module in real time, and the measured current value measured by the superconducting sensor, that is, the detection module transmits the target voltage value obtained from the power module, the target resistance value obtained from the adjustable resistance module, and the measured current value obtained from the superconducting sensor to the display module, and similarly, the detection module may also transmit the detection result to the display module, so that the display module may display the detection result, for example, may display whether the accuracy of the superconducting sensor meets the standard, and/or may display the accuracy class of the superconducting sensor. The purpose of displaying the precision detection result of the superconducting sensor is achieved.
The application also provides a method for detecting the precision of the superconducting sensor, and fig. 6 is a flowchart of a method for detecting the precision of the superconducting sensor, provided by the embodiment of the application, comprising the following steps:
s601, acquiring a target voltage value and a target resistance value, wherein the target voltage value is a voltage value provided by a power supply module, the target resistance value is a resistance value output by an adjustable resistance module, and the power supply module and the adjustable resistance module are connected in series to form a test loop;
S602, obtaining a measured current value, wherein the measured current value is obtained by measuring a current value of a test loop by a superconducting sensor, and the superconducting sensor is sleeved on the periphery of the test loop;
S603, detecting the precision of the superconducting sensor according to the target voltage value, the target resistance value and the measured current value.
In the above embodiment, the target voltage value provided by the power supply module and the target resistance value output by the adjustable resistance module are obtained, wherein the power supply module and the adjustable resistance module are connected in series to form a test loop, a measured current value obtained by measuring the test loop by the superconducting sensor is also obtained, and then the accuracy of the superconducting sensor is detected according to the target voltage value, the target resistance value and the measured current value. For example, whether the precision of the superconducting sensor meets the standard or whether the precision grade of the superconducting sensor is detected, the power supply module can be a standard excitation source (constant voltage source), such as 30V or 12V (or other voltages), the adjustable resistor module can output different resistance values, in practical application, the adjustable resistor module needs to provide resistors with higher precision, and the precision of the power supply module and the adjustable resistor module in the embodiment of the application is higher, so that the precision of the superconducting sensor is detected more accurately finally. The embodiment realizes the purpose of checking the detection accuracy of the superconducting sensor, and solves the technical problem that the detection accuracy of the superconducting sensor cannot be effectively detected in the related technology.
In an alternative embodiment, detecting the accuracy of the superconducting sensor based on the target voltage value, the target resistance value, and the measured current value includes: obtaining a theoretical current value according to the target voltage value and the target resistance value; determining an absolute value of an error between the theoretical current value and the measured current value; under the condition that the ratio between the absolute value of the error and the theoretical current value is smaller than or equal to a preset ratio threshold value, judging that the precision of the superconducting sensor meets the standard; and under the condition that the ratio between the absolute value of the error and the theoretical current value is larger than a preset ratio threshold value, judging that the accuracy of the superconducting sensor does not reach the standard.
In the above embodiment, the theoretical current value is obtained according to the target voltage value and the target resistance value, and then the absolute value of the error between the theoretical current value and the measured current value measured by the superconducting sensor is determined, when the ratio between the absolute value of the error and the theoretical current value is smaller than or equal to the preset ratio threshold value, the accuracy of the superconducting sensor is judged to be up to standard, and when the ratio between the absolute value of the error and the theoretical current value is larger than the preset ratio threshold value, the accuracy of the superconducting sensor is judged to be not up to standard, for example, the preset ratio threshold value is 10% (or 5%, or other values), so that the purpose of judging whether the accuracy of the superconducting sensor is up to standard is achieved.
In an alternative embodiment, detecting the accuracy of the superconducting sensor based on the target voltage value, the target resistance value, and the measured current value includes: and judging the precision grade of the superconducting sensor according to the target voltage value, the K resistance values and the K current values, wherein the target resistance value comprises the K resistance values respectively output by the adjustable resistance module at the K moments, the measured current value comprises the K current values respectively measured by the superconducting sensor at the K moments, and the test loop is conducted at the K moments.
In the above embodiment, the superconducting sensor may measure K current values corresponding to the adjustable resistor module when outputting K different resistance values, and determine the accuracy level of the superconducting sensor according to the target voltage value, the K resistance values, and the K current values. The purpose of judging the precision grade of the superconducting sensor is achieved.
In an alternative embodiment, determining the accuracy class of the superconducting sensor based on the target voltage value, the K resistance values, and the K current values includes: obtaining K error values according to a target voltage value, K resistance values and K current values, wherein the j error values are used for representing absolute values of differences between a j theoretical current value and a j measured current value, the j theoretical current value is calculated according to the target voltage value and the j resistance value, the j measured current value is a current value of a test loop measured by a superconducting sensor at the j moment, the K error values comprise the j error values, the K resistance values comprise the j resistance values, and j is a positive integer which is greater than or equal to 1 and less than or equal to K; under the condition that the K error values are smaller than or equal to a first preset threshold value, judging the precision grade of the superconducting sensor to be a first grade; and under the condition that the K error values are larger than a first preset threshold value and smaller than or equal to a second preset threshold value, judging the precision grade of the superconducting sensor to be a second grade, wherein the precision corresponding to the first grade is higher than the second grade.
In the above embodiment, K error values may be obtained according to the target voltage value, K resistance values, and K current values, and then the K error values are compared with a first preset threshold value and a second preset threshold value, so as to determine that the accuracy level of the superconducting sensor is the first level or the second level, for example, the ratio of the K error values to the K theoretical current values may be determined first to obtain K ratio values, where the K theoretical current values are current values obtained by respectively calculating according to the target voltage value and the K resistance values, and then the average value of the K ratio values is compared with the first preset threshold value and the second preset threshold value, and when the average value of the K ratio values is less than or equal to the first preset threshold value (e.g., 10%, or 5%, or other values), the accuracy level of the superconducting sensor is determined to be the first level, and when the average value of the K ratio values is greater than the first preset threshold value (e.g., 10%, or 5%, or other values) and less than or equal to the second preset threshold value (e.g., 20%), the accuracy level of the superconducting sensor is determined to be the second level; or comparing the K ratios with a first preset threshold value and a second preset threshold value respectively, judging that the precision grade of the superconducting sensor is a first grade when the K ratios are smaller than or equal to the first preset threshold value, and judging that the precision grade of the superconducting sensor is a second grade when one ratio of the K ratios is larger than the first preset threshold value and smaller than or equal to the second preset threshold value. The purpose of judging the specific precision grade of the superconducting sensor is achieved, and a user can conveniently select the superconducting sensor with the proper precision grade according to different application occasions.
The application also provides a superconducting sensor precision detection system, which comprises: the device comprises a constant voltage source, an adjustable rheostat, a superconducting sensor and detection equipment, wherein the constant voltage source is used for providing direct current voltage; the adjustable rheostat is connected with the constant voltage source in series and forms a test loop, and the adjustable rheostat is used for providing resistors with different resistance values; the superconducting sensor is sleeved on the periphery of the test loop and is used for measuring the current value of the test loop; the detection equipment is connected with the constant voltage source, the adjustable rheostat and the superconducting sensor, and is used for obtaining a target voltage value provided by the constant voltage source, a target resistance value provided by the adjustable rheostat and a measured current value of the superconducting sensor, and detecting the precision of the superconducting sensor according to the target voltage value, the target resistance value and the measured current value.
It should be noted that the above-described embodiments are only some embodiments, but not all embodiments of the present application. The present application will be specifically described with reference to the following examples.
Fig. 7 is a schematic diagram of a superconducting sensor accuracy testing system according to an embodiment of the present application, wherein a switchable loop is constructed by using a high-accuracy constant voltage source and a high-accuracy load, and whether the system follows is tested by a multistage test, for example, 10 microamps, 10%, 20%, 30%, 100%, 130%, 150%, 200%, step by step.
The standard excitation source (constant voltage source) is utilized, the constant voltage precision requirement is higher, the constant voltage precision is higher and the resistance precision is higher because of the change from the output current requirement to microampere level, the data fed back by the sensor is compared with the expected data through gear adjustment according to the current standard, the error cannot exceed 10%, and if the error exceeds 10%, the superconducting sensor is considered to be problematic.
Optionally, the collected data may be displayed by a collection display device, for example, the collected data includes a voltage value output by a high-precision constant voltage source, a resistance value output by a high-precision load, and a current value measured by a superconducting sensor; optionally, the detection result of the precision of the superconducting sensor may also be displayed in the acquisition display device, for example, the detection result is qualified or unqualified.
The method comprises the steps that a superconducting sensor is placed in a whole verification system, a constant voltage source is used for switching high-precision loads, an expected microampere-level current is output, then the microampere-level current passes through a coil of the superconducting sensor, then the coil outputs a result, namely a current value, according to a detection method, data comparison is carried out, the increase or decrease of the current after dynamic switching is compared with the detected result, the difference value of the current is compared, and then whether the coil meets the design requirement is judged, for example, the required error is not more than 10%, and if the required error exceeds 10%, the coil quality is unqualified.
By the embodiment of the application, whether the precision of the superconducting sensor is qualified or not can be checked, and the purpose of accurately judging the precision grade of the superconducting sensor can be realized.
It should be noted that: in the device provided in the above embodiment, when implementing the functions thereof, only the division of the above functional modules is used as an example, in practical application, the above functional allocation may be implemented by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to implement all or part of the functions described above. In addition, the embodiments of the apparatus and the method provided in the foregoing embodiments belong to the same concept, and specific implementation processes of the embodiments of the method are detailed in the method embodiments, which are not repeated herein.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, such as a division of units, merely a division of logic functions, and there may be additional divisions in actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some service interface, device or unit indirect coupling or communication connection, electrical or otherwise.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in whole or in part in the form of a software product stored in a memory, comprising several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method of the various embodiments of the present application. And the aforementioned memory includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a magnetic disk or an optical disk.
The foregoing is merely exemplary embodiments of the present disclosure and is not intended to limit the scope of the present disclosure. That is, equivalent changes and modifications are contemplated by the teachings of this disclosure, which fall within the scope of the present disclosure. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure.
This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains.
Claims (10)
1. A superconducting sensor accuracy detecting device, characterized by comprising: the power module, the adjustable resistance module, the superconducting sensor and the detection module, wherein,
The power module is connected with the adjustable resistor module in series to form a test loop, wherein the power module is used for providing direct current voltage, and the adjustable resistor module is used for outputting resistors with different resistance values;
The superconducting sensor is sleeved on the periphery of the test loop, and is used for measuring the current value of the test loop;
The detection module is electrically connected with the power supply module, the adjustable resistance module and the superconducting sensor, wherein the detection module is used for detecting the precision of the superconducting sensor according to a target voltage value provided by the power supply module, a target resistance value provided by the adjustable resistance module and a measured current value of the superconducting sensor.
2. The superconducting sensor accuracy detecting apparatus according to claim 1, characterized in that the superconducting sensor accuracy detecting apparatus further comprises: a first switch module, wherein,
The first switch module is connected in series in the test loop, and is electrically connected with the detection module, wherein the detection module is further used for controlling the first switch module to be in a conducting or disconnecting state.
3. The superconducting sensor precision detection device according to claim 2, wherein the detection module is further configured to control the adjustable resistance module to adjust and output a set of resistance values, wherein the set of resistance values includes N resistance values output by the adjustable resistance module at N times, the target resistance value includes the set of resistance values, the first switch module is in a conducting state at all of the N times, and N is a positive integer greater than or equal to 1;
the measured current values comprise N current values, wherein the N current values comprise current values of the test loop, which are respectively measured by the superconducting sensor at N moments;
And the detection module judges the precision grade of the superconducting sensor according to the target voltage value, the N resistance values and the N current values.
4. The superconducting sensor accuracy detecting apparatus according to claim 1, characterized in that the superconducting sensor accuracy detecting apparatus further comprises: a second switch module, wherein,
The second switch module is connected between the power module and the adjustable resistor module, the adjustable resistor module comprises M resistors, one end of each resistor in the M resistors is connected together and connected to one end of a power supply, and the detection module is used for controlling the second switch module to be connected with any resistor in the M resistors, wherein M is a positive integer greater than or equal to 1.
5. The superconducting sensor accuracy detecting apparatus according to any one of claims 1 to 4, characterized in that the superconducting sensor accuracy detecting apparatus further comprises: the display module is electrically connected with the detection module and is used for displaying the target voltage value, the target resistance value, the measured current value and the detection result, and the detection result comprises at least one of the following components:
a first result, wherein the first result is used for indicating whether the precision of the superconducting sensor meets the standard;
And a second result, wherein the second result is used for representing the precision level of the superconducting sensor.
6. A method for detecting accuracy of a superconducting sensor, comprising:
obtaining a target voltage value and a target resistance value, wherein the target voltage value is a voltage value provided by a power supply module, the target resistance value is a resistance value output by an adjustable resistance module, and the power supply module and the adjustable resistance module are connected in series and form a test loop;
obtaining a measured current value, wherein the measured current value is obtained by measuring the current value of the test loop by the superconducting sensor, and the superconducting sensor is sleeved on the periphery of the test loop;
And detecting the precision of the superconducting sensor according to the target voltage value, the target resistance value and the measured current value.
7. The method according to claim 6, wherein detecting the accuracy of the superconducting sensor based on the target voltage value, the target resistance value, and the measured current value, comprises:
obtaining a theoretical current value according to the target voltage value and the target resistance value;
determining an absolute value of an error between the theoretical current value and the measured current value;
judging that the precision of the superconducting sensor meets the standard under the condition that the ratio between the absolute error value and the theoretical current value is smaller than or equal to a preset ratio threshold value;
and under the condition that the ratio between the absolute value of the error and the theoretical current value is larger than the preset ratio threshold, judging that the accuracy of the superconducting sensor does not reach the standard.
8. The method according to claim 6, wherein detecting the accuracy of the superconducting sensor based on the target voltage value, the target resistance value, and the measured current value, comprises:
And judging the precision grade of the superconducting sensor according to the target voltage value, the K resistance values and the K current values, wherein the target resistance value comprises the K resistance values respectively output by the adjustable resistance module at K moments, the measured current value comprises the K current values respectively measured by the superconducting sensor at the K moments, and the test loop is conducted at the K moments.
9. The method of claim 8, wherein determining the accuracy class of the superconducting sensor based on the target voltage value, the K resistance values, and the K current values comprises:
Obtaining K error values according to the target voltage value, the K resistance values and the K current values, wherein the j error values are used for representing absolute values of differences between j theoretical current values and j measured current values, the j theoretical current values are calculated according to the target voltage value and the j resistance values, the j measured current values are current values of the test loop, which are measured by the superconducting sensor at j moments, the K error values comprise the j error values, the K resistance values comprise the j resistance values, and j is a positive integer which is greater than or equal to 1 and less than or equal to K;
Judging the precision grade of the superconducting sensor to be a first grade under the condition that the K error values are smaller than or equal to a first preset threshold value;
And judging the precision grade of the superconducting sensor to be a second grade under the condition that the K error values are larger than the first preset threshold value and smaller than or equal to the second preset threshold value, wherein the precision corresponding to the first grade is higher than the second grade.
10. A superconducting sensor accuracy detection system, comprising: constant voltage source, adjustable rheostat, superconducting sensor, detection device, wherein,
The constant voltage source is used for providing direct current voltage;
The adjustable rheostat is connected with the constant voltage source in series and forms a test loop, and the adjustable rheostat is used for providing resistors with different resistance values;
The superconducting sensor is sleeved on the periphery of the test loop, and is used for measuring the current value of the test loop;
The detection equipment is connected with the constant voltage source, the adjustable rheostat and the superconducting sensor, wherein the detection equipment is used for acquiring a target voltage value provided by the constant voltage source, a target resistance value provided by the adjustable rheostat and a measured current value of the superconducting sensor, and detecting the precision of the superconducting sensor according to the target voltage value, the target resistance value and the measured current value.
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