CN112327213A - Electric revolving body performance detection system and detection method - Google Patents
Electric revolving body performance detection system and detection method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/55—Testing for incorrect line connections
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention provides an electric revolving body automatic detection system and a method, the detection method is that according to a test program preset by a computer system, when the electric revolving body is detected, the electric revolving body is tested and connected with a plug connector on a test system, and the test system is started; and under the condition that the electric revolving body actually drives the load, automatically completing the electric conduction performance test according to the voltage drop of the access voltage and the output voltage of the electric revolving body and forming a test result. And meanwhile, according to the comparison of the difference value between the actual rotation angle of the electric rotation body measured by the test system and the rotation angle measured by the electric rotation body angle sensor, the rotation angle performance test of the electric rotation body is automatically completed and a test result is formed. Because the whole process is automatically detected, the detection efficiency is high, the detection parameter range is wide, the detection precision is high, and the operation is easy.
Description
Technical Field
The invention relates to a detection system and a detection method, in particular to a detection system and a detection method for the performance of an electric revolving body.
Background
The electric revolving body is used as a core part of engineering equipment such as a wheeled crane, an excavator, an overhead fire truck, an overhead working platform and the like, is mainly used for transmitting electric signals and power between a running part and an operating part when revolving (360 degrees at the maximum), and can also be internally provided with an angle detection device for detecting the revolving angle.
The traditional electrification revolving body measures whether upper and lower outgoing lines of corresponding channel serial numbers (such as 1, 2 and 3) are conducted or not one by one through a universal meter after assembly production is offline, detection efficiency is low, faults such as installation size deviation of a transmission mechanism in the electrification revolving body and installation dislocation of the upper and lower outgoing lines are not easy to detect, after the electrification revolving body is installed on engineering equipment, faults such as control failure caused by overhigh voltage drop of a transmission line, short circuit caused by wiring error of a circuit transmission channel, inaccurate detection of a revolving angle and the like restrict debugging period of engineering machinery products, and even the engineering equipment cannot work normally.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a system and a method for detecting the performance of an electric revolving body, which can quickly detect the wiring correctness of each transmission channel, the voltage drop of each channel for electric transmission and the revolving detection precision, and automatically generate a detection report according to the detection value for the quality control of the electric revolving body. Because the whole process is automatically detected, the detection efficiency is high, the detection variable range is wide, the detection precision is high, and the operation is easy.
The technical scheme is as follows: the electric revolving body performance detection system comprises a test bench, a test computer system, a test board card, a revolving angle sensor and a power supply;
the test bench is provided with a driving motor and a test bench encoder; the driving motor is in butt joint with the electric revolving body, and in the test process of the electric revolving body, the electric revolving body is driven to rotate according to the signal transmitted by the test board card, and the starting speed and the rotation angle can be controlled; the test bed encoder is used for measuring the actual rotation angle of the electric revolving body;
the test computer system is used for collecting the electric revolving body performance data collected by the test board encoder, finishing the signal processing, calculation, logic and test result judgment of the test system, and storing and outputting the test result and the electric revolving body performance data under the result;
the test board card is arranged in the test computer system and used for integrally connecting the test board encoder, the rotation angle sensor, the electric rotation body, the driving motor and the test computer system and transmitting acquired data and control signals output by the test computer system;
and the rotation angle sensor is arranged at the top of the electric revolving body and used for measuring the rotation angle of the electric revolving body.
The testing system also comprises a control box which is connected with the testing computer system and comprises a main switch of a working power supply for controlling the testing system, a fuse and a load capacity resistor for testing the traditional channel of the electric revolving body.
The electric revolving body is connected with a power supply through the traveling circuit connecting plug connector, and is connected with a resistor through the operating circuit connecting plug connector.
The device also comprises a test bench encoder fuse and a rotation angle sensor fuse, wherein the test bench encoder fuse is connected with the test bench encoder fuse in series, and the rotation angle sensor fuse is connected with the rotation angle sensor fuse in series.
The performance data includes a set rotation angle alpha0Current electric rotary body rotation angle alpha1Angle of rotation alpha for detecting angle of electric rotary body itself2The electrical transmission channel access voltage and the output voltage of the electrical rotary body and the number of electrical transmission channels related to the parameters. The data specifically includes the rotation angle of the electric rotary body when the output voltage is minimum.
The invention discloses an automatic detection method for electrical conduction performance of an electric revolving body, which is characterized in that the automatic detection method based on the electric revolving body performance detection system comprises the following steps:
(1) installing the electric revolving body on a test system, starting the test system and the electric revolving body, and connecting a voltage V to an electric transmission channel nninDriving a load through an electric transmission channel n, wherein n is the number of electric transmission channels of the electric revolving body;
(2) the driving motor drives the electric revolving body to rotate by a preset rotating angle alpha0Rotating;
(3) the test system reads the n access voltage V of the electric transmission channelninAnd the output voltage V of the electric transmission channelnout；
(4) Calculating VninAnd VnoutWhen the maximum difference is larger than the voltage drop threshold delta V allowed by the preset electric transmission channel of the system, the electric transmission voltage is too high, and the judgment is unqualified.
One or two of the following two methods are adopted for distinguishing the electric transmission channels:
(1) the access voltage values of the electric transmission channels are different, and the difference value of the voltage values among the electric transmission channels is larger than the voltage drop threshold value delta V allowed by the preset electric transmission channel of the system;
(2) different electrifying time is adopted, so that the time for driving the load by each electric transmission channel of the electric revolving body is not overlapped.
The invention discloses an automatic detection method for rotation angle performance of an electric rotation body, which is characterized in that the automatic detection method based on the electric rotation body performance detection system comprises the following steps:
(1) the electric revolving body is arranged on the test system, the test system and the electric revolving body are started, and the driving motor drives the electric revolving body to rotate according to a preset rotating angle alpha0Rotating;
(2) the test system reads the rotation angle alpha of the current test device driving electric revolving body1Angle of rotation alpha for detecting angle of electric rotary body itself2；
(3) Calculating alpha1And alpha2When the maximum difference is larger than the voltage drop threshold delta alpha allowed by the system preset electric transmission channel, the rotation angle detection error of the electric rotation body is large, and the electric rotation body is judged to be unqualified.
The step (1) is also preceded by the steps of: real-time judgment of electric revolving body rotation angle alpha1Whether or not greater than alpha0When rotating by an angle α1≥α0Automatic time-out detection, α0The set value of (b) is equal to or greater than 360 °.
The method also comprises the following steps: and storing and outputting the test result and all the performance data.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
(1) according to the automatic detection method and system for the electric revolving body, provided by the invention, the wiring error of the electric revolving body can be automatically detected through a computer system, the electric transmission quality can be judged according to the voltage drop of each electric transmission channel during loading, the detection error of the revolving angle can be automatically detected, and a detection report can be automatically generated according to the detection value and used for controlling the quality of the electric revolving body;
(2) the method and the system for automatically detecting the electric revolving body provided by the invention are automatically completed in the whole process, and have the advantages of high detection efficiency, wide detection variable range, high detection precision, low requirements on skills and responsibility of detection personnel, simplicity in operation, easiness in popularization and easiness in subsequent improvement of the electric revolving body.
Drawings
FIG. 1 is a schematic view of the installation of the automatic electric rotary body detection system of the present invention;
FIG. 2 is a schematic diagram of the wiring of the automatic electric rotary body detection system of the present invention;
fig. 3 is a main flow chart of an electrical continuity performance automatic detection program of the electrical rotary body automatic detection method of the present invention.
Fig. 4 is a main flow chart of a program for automatically detecting the performance of the rotation angle of the electric rotating body according to the automatic detection method of the present invention.
Description of reference numerals:
1: an electric rotating body; 2: a computer display; 3: a test bench; 4: a computer host; 5: testing the board card; 6: a control box; 7: a test board encoder; 8: a drive motor; 151: an electrical slip ring; 152: a rotation angle sensor; 153: an electric brush; 154: a shifting fork; 155: the electric revolving body is connected with a running circuit connector; 156: the electric revolving body is connected with the operation circuit connector; 611: a power switch (circuit breaker); 612: an AC/DC transformer; 653: electrically turning on the drive relay; 663: electrically conducting a drive fuse; 616: the driving motor is protected; 617: the encoder of the test board is protected; 618: a rotation angle sensor insurance; 673: a drive resistor; 691: a communication bus.
Detailed Description
Fig. 1 is a schematic mounting diagram of an electric rotating body automatic detection system according to the present embodiment.
And a driving motor 8 and a test bench encoder 7 are arranged in the test bench 3. The electric rotating body 1 is mounted on the top of the test stage 3, and is connected to the control box 6 through an electric rotating body-travel circuit connection plug 155 and an electric rotating body-work circuit connection plug 156. The driving motor 8 can drive the electric revolving body 1 to rotate through the shifting fork 154 under the control of the control box 6, and the electric revolving body 1 can rotate according to 10s-120s/r through the speed reducing mechanism of the motor; the test bed encoder 7 is used for measuring the actual rotation angle of the electric revolving body 1, and in the embodiment, a 360-degree absolute value type encoder is selected and output as a bus type signal.
The computer display 2 is used for displaying the test values and the test results; the computer host 4 is internally provided with a test program, 2 test board cards 5 are arranged at the expansion port of the computer host 4, and the test board cards 5 have the functions of signal detection input and control signal output and connect the computer host 4 with the control box 6.
After the tester starts the testing device, each electrical transmission channel is connected to the power supply through the electrical rotary body and the traveling circuit connection connector 155, and the electrical slip ring 151 is connected to the brush 153 in a sliding manner, and the electrical rotary body and the operation circuit connection connector 156 drive the driving resistor 673 in the control box 6.
The electric rotating body 1 has a rotation angle sensor 152 and can detect a 360 ° rotation angle of the electric rotating body 1. The rotation angle sensor 152 is attached to the top of the electric rotating body 1, and its rotation shaft rotates together with the electric slip ring 151, and the housing moves together with the brush 153. When the driving motor 8 drives the electric rotation body 1 to rotate through the shift fork 154, the rotation angle sensor 152 can detect the rotation angle of the electric rotation body 1. In the present embodiment, the rotation angle sensor 152 detects a range of 360 °, and the absolute value encoder outputs a bus signal. In the present embodiment, the electrical rotating body 1 has 15 electrical transmission channels, each having 1 electrical slip ring 151 and a brush 153, each capable of achieving a rated driving capability.
Electrical transmission channel n access voltage V acquired by test systemninThe electric revolving body and the running circuit connection plug-in unit 155 is connected with the power supply voltage, and the output voltage V of the electric transmission channelnoutIs the output voltage of the electric rotating body and work circuit connection plug 156.
In this embodiment, the computer system sets a rotation detection error threshold Δ V allowed by the electric rotating body to be tested to 100mA in advance. When V isninAnd VnoutWhen the maximum difference is larger than the voltage drop threshold value 100mA allowed by the preset electric transmission channel of the system, the electric transmission voltage is too high, and the judgment is unqualified.
In the present embodiment, the test system reads the rotation angle α of the current test device driving electric rotary body1Angle of rotation alpha for detecting angle of electric rotary body itself2(ii) a In this embodiment, the maximum difference is greater than the voltage drop threshold Δ α allowed by the system's preset electrical transmission channel and is set to 0.1 °. When alpha is1And alpha2When the maximum difference value is larger than 0.1 degrees, the rotation angle detection error of the electric revolving body is large, and the judgment is unqualified.
Fig. 2 is a schematic wiring diagram of an electric revolving body automatic detection system according to an embodiment of the invention. The 220V AC power supply supplies power to the computer display 2, the computer main unit 4 and the AC/DC transformer 612 through the power switch (or breaker) 611, and the AC/DC transformer 612 converts the 220V AC into 24V DC to supply power to the sensors, the motor and the like of the detection system.
The test board card 5 is installed in the computer host 4, and the computer host 4 provides power supply. The output port of the test board 5 for controlling the electrical transmission channel n is connected in series with the control coil of the relay 653 for electrically conducting the driver n. The normally open contact of the relay 653 is connected in series with the electrically conductive drive fuse 663, the electric rotating body 1, and the drive resistor 673. When the driving capability of the driving n is driven by the test electrical conduction, the output port of the control electrical transmission channel n of the test board card 5 outputs high level, the coil of the relay 653 is electrified, the contacts 30 and 87 of the relay 653 are closed, and the driving resistor 673 is electrified. The output port of the test board 5, which controls the rotation of the driving motor 8, is connected in series with the control coil of the relay 615. The normally open contact of the relay 615 is connected in series with the fuse 616 of the drive motor 8 and the drive motor 8.
When testing the electric conduction driving n driving capability or the detection error of the rotation angle sensor, the output port of the control driving motor 8 of the test board card 5 outputs high level, the coil of the relay 615 is electrified, the contacts 30 and 87 of the relay 615 are closed, and the driving motor 8 is electrified to rotate.
The test bed encoder 7 is connected in series with the test bed encoder fuse 617, and when the driving motor 8 drives the electric revolving body 1 to rotate, the actual rotation angle of the electric revolving body 1 is measured.
The rotation angle sensor 152 is connected in series with the rotation angle sensor fuse 618, when the driving motor 8 drives the electric rotation body 1 to rotate, the shaft of the rotation angle sensor 152 is driven to rotate to generate a rotation angle, and the difference value between the actual rotation angle of the electric rotation body 1 measured by the test bed encoder 7 and the angle measured by the rotation angle sensor 152 is compared to judge the detection error of the rotation angle sensor 152.
In this embodiment, the test board 5, the testboard encoder 7, and the rotation angle sensor 152 are connected by a communication bus 691 to perform CAN bus communication.
Fig. 3 is a main flow chart of an automatic detection program for electrical continuity performance of an electrical revolving body automatic detection method according to an embodiment of the present invention, and in this embodiment, the program is mainly completed in the computer main unit 4. The method mainly comprises the following steps:
first, the computer main unit 4 reads the current rotation angle α of the electric rotary bodynSetting the rotation angle alpha0(step S402). Specifically, the current electric revolution body rotation angle αnIs the current rotation angle of the electric rotation body 1 measured by the encoder 7 of the test board and sets the rotation angle alpha0It is the test system that sets the maximum rotation angle of the electric rotary body 1.
Next, the electric rotary body rotation angle α is determinednWhether or not greater than alpha0(step S403). In particular, if αnGreater than alpha0The test is completed when the driving motor 8 drives the electric revolving body 1 to exceed the specified angle; if α isnNot more than alpha0Description of the inventionThe electric revolving body 1 is driven by the movable motor 8 not to exceed a specified angle, and the driving motor 8 needs to continue working.
Then, the motor operates, the electric revolving body rotates, the relay is energized, and the channel is loaded (step S404). Specifically, when the nth electrical conduction performance is automatically detected, the output port of the control electrical transmission channel n of the test board 5 outputs a high level, the coil of the relay 653 is energized, the contacts 30 and 87 of the relay 653 are closed, and the driving resistor 673 is energized.
Fourthly, reading the access voltage V of the channel nninOutput a minimum voltage Vnout(step S405). Specifically, the test system collects the n access voltages V of the electrical transmission channelninThe electric revolving body and the running circuit connection plug-in unit 155 is connected with the power supply voltage, and the output voltage V of the electric transmission channelnoutIs the output voltage of the electric rotating body and work circuit connection plug 156.
The fifth step, calculate VninAnd VnoutAnd whether the maximum error after loading of the electrical transmission channel n exceeds the allowable boundary value Δ V is determined (step S406).
Specifically, when the maximum difference is greater than the voltage drop threshold Δ V allowed by the system preset electrical transmission channel, the electrical transmission voltage is too high, and the conductivity of the channel n is determined to be unqualified (step S408); when the maximum difference is not greater than the voltage drop threshold Δ V allowed by the system preset electrical transmission channel, the electrical transmission voltage is too high, and the conductivity of the channel n is determined to be qualified (step S407).
Finally, recording each channel number and access voltage VninOutput minimum voltage Vnout(step S409). Specifically, record each channel number, access voltage VninOutput minimum voltage VnoutAnd also includes outputting a minimum voltage VnoutCurrent rotation angle, V of electric rotary body 1 measured by time test platform encoder 7nin-VnoutThe information such as the calculation result is used for testing, evaluating and subsequently improving the unqualified product, and the reason for causing the unqualified electric revolving body can be analyzed by recording the rotation angle of the unqualified electric revolving body under the minimum voltage.
Next, the main flow of the automatic detection program for the rotation angle performance according to the embodiment of the present invention will be described with reference to fig. 4. Fig. 4 is a main flow chart of a program for automatically detecting the performance of the rotation angle of the electric rotating body according to the automatic detection method of the present invention, and in the present embodiment, the program is mainly executed in the computer main unit 4. The method mainly comprises the following steps:
first, the test system controls the motor to start and the electric rotating body to rotate (step S462). Specifically, the computer host 4 makes the output port of the control drive motor 8 of the test board 5 output a high level through bus communication, the coil of the relay 615 is energized, the contacts 30 and 87 of the relay 615 are closed, the drive motor 8 is energized to rotate, and then the electric revolving body 1 is driven to rotate.
Secondly, the current rotation angle alpha of the electric rotary body is readnSetting the rotation angle alpha0(step S463). Specifically, the test board encoder 7 measures the current rotation angle α of the electric revolving body 1nSetting the rotation angle alpha0It is the test system that sets the maximum rotation angle of the electric rotary body 1.
Thirdly, judging the rotation angle alpha of the electric revolving bodynWhether or not greater than alpha0(step S464). In particular, if αnGreater than alpha0The test is completed when the driving motor 8 drives the electric revolving body 1 to exceed the specified angle; if α isnNot more than alpha0It is explained that the driving motor 8 drives the electric rotating body 1 to a degree not exceeding the predetermined angle, and the driving motor 8 needs to continue to operate.
Fourthly, reading the rotation angle alpha of the current testing device1Angle of rotation alpha of electric rotary body2(step S404). In particular, α1For the measured values of the test-bed encoder 7, alpha2Is the gyroscopic angle sensor 152 measurement.
The fifth step, judge and calculate alpha1And alpha2Is not exceeded (step S466) by the allowable boundary value Δ α.
Specifically, when α is1And alpha2When the maximum difference value is larger than the allowable error threshold value delta alpha of the preset rotation angle detection of the system, the detection error of the rotation angle exceeds the allowable error threshold value delta alphaA range in which the rotation angle detection performance is not qualified is judged (step S468); when alpha is1And alpha2When the maximum difference value is not greater than the allowable error threshold Δ α for the system preset turning angle detection, the turning angle detection error is within the allowable range, and it is determined that the turning angle detection performance is acceptable (step S467).
Finally, the recording angle detection α is recorded1And alpha2The maximum difference value (step S469). Specifically, the recorded value includes α1And alpha2Maximum difference of, at this time, α1Value of (a) at this time2The value of (c), etc.
Claims (10)
1. The electric revolving body performance detection system is characterized by comprising a test bench, a test computer system, a test board card, a revolving angle sensor and a power supply;
the test bench is provided with a driving motor and a test bench encoder; the driving motor is in butt joint with the electric revolving body, and in the test process of the electric revolving body, the electric revolving body is driven to rotate according to the signal transmitted by the test board card, and the starting speed and the rotation angle can be controlled; the test bed encoder is used for measuring the actual rotation angle of the electric revolving body;
the test computer system is used for collecting the electric revolving body performance data collected by the test board encoder, finishing the signal processing, calculation, logic and test result judgment of the test system, and storing and outputting the test result and the electric revolving body performance data under the result;
the test board card is arranged in the test computer system and used for integrally connecting the test board encoder, the rotation angle sensor, the electric rotation body, the driving motor and the test computer system and transmitting acquired data and control signals output by the test computer system;
and the rotation angle sensor is arranged at the top of the electric revolving body and used for measuring the rotation angle of the electric revolving body.
2. The electrical rotary body performance testing system of claim 1, further comprising a control box connected to the testing computer system and including a main switch for controlling the operation of the testing system, a fuse and a load capacity resistor for testing a conventional passage of the electrical rotary body.
3. The electrical rotary body performance detection system according to claim 2, further comprising a traveling circuit connection plug and an operation circuit connection plug, wherein the electrical transmission path of the electrical rotary body is connected to the power source through the traveling circuit connection plug, and the electrical rotary body is connected to the resistor through the operation circuit connection plug.
4. The electrical rotator performance detection system of claim 1, further comprising a test station encoder fuse and a rotation angle sensor fuse, the test station encoder fuse in series with the test station encoder fuse and the rotation angle sensor fuse in series with the rotation angle sensor fuse.
5. The electrical rotary body performance detection system according to claim 1, wherein the performance data includes a set rotation angle α0Current electric rotary body rotation angle alpha1Angle of rotation alpha for detecting angle of electric rotary body itself2The electrical transmission channel access voltage and the output voltage of the electrical rotary body and the number of electrical transmission channels related to the parameters.
6. An electric rotating body electrical conduction performance automatic detection method is characterized in that the electric rotating body performance detection system based on any one of claims 1 to 5 comprises the following steps:
(1) installing the electric revolving body on a test system, starting the test system and the electric revolving body, and connecting a voltage V to an electric transmission channel nninDriving a load through an electric transmission channel n, wherein n is the number of electric transmission channels of the electric revolving body;
(2) the driving motor drives the electric revolving body to rotate by a preset rotating angle alpha0Rotating;
(3) the test system reads the n access voltage V of the electric transmission channelninAnd the electric transmissionOutput voltage V of channelnout；
(4) Calculating VninAnd VnoutWhen the maximum difference is larger than the voltage drop threshold delta V allowed by the preset electric transmission channel of the system, the electric transmission voltage is too high, and the judgment is unqualified.
7. The method for automatically detecting the electrical conduction performance of the electrical rotary body according to claim 1, wherein one or both of the following two methods are adopted for distinguishing the electrical transmission channels:
(1) the access voltage values of the electric transmission channels are different, and the difference value of the voltage values among the electric transmission channels is larger than the voltage drop threshold value delta V allowed by the preset electric transmission channel of the system;
(2) different electrifying time is adopted, so that the time for driving the load by each electric transmission channel of the electric revolving body is not overlapped.
8. An automatic detection method for rotation angle performance of an electric rotation body, which is characterized in that the system for detecting the rotation angle performance of the electric rotation body based on any one of claims 1 to 5 comprises the following steps:
(1) the electric revolving body is arranged on the test system, the test system and the electric revolving body are started, and the driving motor drives the electric revolving body to rotate according to a preset rotating angle alpha0Rotating;
(2) the test system reads the rotation angle alpha of the current test device driving electric revolving body1Angle of rotation alpha for detecting angle of electric rotary body itself2；
(3) Calculating alpha1And alpha2When the maximum difference is larger than the voltage drop threshold delta alpha allowed by the system preset electric transmission channel, the rotation angle detection error of the electric rotation body is large, and the electric rotation body is judged to be unqualified.
9. The method for automatically detecting the electrical conduction performance or the rotation angle performance of the electrical rotating body according to claim 6 or 8, characterized by further comprising the following steps before the step (1): real-time judgmentRotation angle alpha of power-off revolving body1Whether or not greater than alpha0When rotating by an angle α1≥α0Automatic time-out detection, α0The set value of (b) is equal to or greater than 360 °.
10. The method for automatically detecting the electrical conduction performance or the rotation angle performance of the electrical rotating body according to claim 6 or 8, characterized by comprising the following steps: and storing and outputting the test result and all the performance data.
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| CN114543735A (en) * | 2022-02-21 | 2022-05-27 | 厦门乃尔电子有限公司 | Testing device of angular displacement sensor |
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