Origin positioning compensation device and method in electrical automatic measurement system

Abstract

The present invention discloses an origin positioning compensation device and method in an electrical automatic measurement system, which includes a measurement reference plate, wherein an in-situ calibration area is provided at the origin position of the measurement reference plate, wherein a plurality of resistor bars are densely laid in the in-situ calibration area, and the two ends of each resistor bar are electrically connected to different voltage sources respectively, and when the metal probe of the electrical automatic measurement system returns to the origin, the metal probe falls on the resistor bar in the in-situ calibration area. The position of the metal probe on the resistor is determined by using the potential on the resistor, and then the return position of the metal probe on the in-situ calibration area is determined, and then the position measured by the metal probe on the measurement reference plate is compensated and corrected according to the origin position of the metal probe, so as to improve the positioning accuracy and measurement accuracy of the electrical automatic measurement system.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical property measurement, and in particular to an origin positioning compensation device and method in an electrical property automatic measurement system. Background Art

[0002] In the electronic instrument production and testing industry, it is often necessary to use an electrical measurement system to calibrate and measure electrical boards, which requires high measurement accuracy. Therefore, in the electrical automatic measurement system, the synchronization between components, positioning accuracy, and measurement accuracy all need to be maintained at a high level of accuracy. At present, the general direction in the industry is to study the synchronization of components in the electrical automatic measurement system and the accuracy of the measuring instrument itself. However, if the positioning of the measurement origin used as the measurement reference is inaccurate, it will have a great impact on the subsequent measurement data. Whether the positioning of the measurement origin is accurate depends to a large extent on the accuracy of the measuring instrument itself. However, in the accuracy of the measuring instrument, absolute errors cannot always be avoided. Therefore, it is urgent to develop an origin positioning compensation method to improve the positioning accuracy and measurement accuracy of the electrical measurement system. Summary of the invention

[0003] The purpose of the present invention is to overcome the above technical deficiencies and to provide an origin positioning compensation device and method in an electrical automatic measurement system to improve the positioning accuracy and measurement accuracy of the electrical measurement system.

[0004] In order to achieve the above technical objectives, the present invention provides an origin positioning compensation device in an automatic electrical measurement system, wherein the automatic electrical measurement system includes a measurement reference plate, and an in-situ calibration area is provided at the origin position of the measurement reference plate, wherein a plurality of resistor bars are densely laid in the in-situ calibration area, and the two ends of each resistor bar are electrically connected to different voltage sources respectively, and when the metal probe of the automatic electrical measurement system returns to the origin, the metal probe falls on the resistor bar in the in-situ calibration area.

[0005] Preferably, a plurality of parallel resistor bars are evenly laid out in parallel in the in-situ calibration area, and the resistor bars are consistent in length, thickness and thickness.

[0006] Preferably, insulating strips are provided between adjacent resistor strips.

[0007] Preferably, the detection end of the metal probe is provided with a flexible metal contact piece.

[0008] Preferably, the standard origin of the measurement reference plate is the center point of the in-situ calibration area.

[0009] The present invention also provides an origin positioning compensation method in an electrical automatic measurement system, and the origin positioning compensation method in the electrical automatic measurement system comprises the following steps:

[0010] An in-situ calibration area is set at the origin position of the measurement reference plate of the electrical automatic measurement system, and a plurality of parallel resistor bars are densely and evenly laid in the in-situ calibration area, and two ends of each resistor bar are electrically connected to different voltage sources respectively;

[0011] When the metal probe of the electrical property automatic measurement system returns to the origin, the metal probe is placed on the resistance bar in the in-situ calibration area;

[0012] Identify the electric potential on the metal probe, and determine the position of the metal probe on the resistor strip according to the identified electric potential;

[0013] The origin position of the metal probe regression is determined according to the position of the resistor strip, and the position measured by the metal probe on the measurement reference plate is compensated and corrected according to the origin position of the metal probe regression.

[0014] Preferably, the length and thickness of the resistor bars are consistent.

[0015] Preferably, insulating strips are provided between adjacent resistor strips.

[0016] Preferably, the detection end of the metal probe is provided with a flexible metal contact piece.

[0017] Preferably, the standard origin of the measurement reference plate is the center point of the in-situ calibration area.

[0018] Compared with the prior art, the origin positioning compensation device and method in the electrical automatic measurement system described in the present invention uses the potential on the resistor to determine the position of the metal probe on the resistor, and then determines the regression position of the metal probe on the in-situ calibration area, and then compensates and corrects the position measured by the metal probe on the measurement reference plate according to the origin position of the metal probe regression, so as to improve the positioning accuracy and measurement accuracy of the electrical automatic measurement system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the regional distribution of a measurement reference plate in an origin positioning compensation device in an electrical automatic measurement system according to the present invention;

[0020] Figure 2 A schematic diagram of an in-situ calibration area in an origin positioning compensation device in an electrical automatic measurement system according to the present invention;

[0021] Figure 3 The present invention provides a flowchart of the steps of an origin positioning compensation method in an automatic electrical property measurement system. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The present invention provides an origin positioning compensation device in an electrical automatic measurement system, wherein the electrical automatic measurement system comprises a measurement reference plate, such as Figure 1 As shown, the origin of the measurement reference plate is provided with an in-situ calibration area. Specifically, the standard origin of the measurement reference plate is the center point of the in-situ calibration area, that is, the intersection of the lines connecting the relative vertices. A plurality of resistor bars 1 are densely laid in the in-situ calibration area, and the range of laying of the resistor bars 1 is the entire in-situ calibration area. Specifically, Figure 2 As shown, a plurality of parallel resistor bars 1 are evenly laid in parallel in the in-situ calibration area, and the length, thickness and thickness of the resistor bars 1 are all the same. Different voltage sources are electrically connected to the two ends of each resistor bar 1, so the potentials at different positions on the resistor bar 1 are different. At the same time, insulating bars are provided between adjacent resistor bars 1 to avoid electromagnetic interference between the resistor bars 1.

[0024] When the metal probe of the electrical property automatic measurement system returns to the origin, the metal probe falls on the resistor bar 1 in the in-situ calibration area. Since the electric potentials at different positions on the resistor bar 1 are different, when the metal probe falls on the resistor bar 1 in the in-situ calibration area, the metal probe receives the electric potential at the corresponding position, and the position of the metal probe on the resistor bar 1 can be calculated based on the electric potential on the metal probe, and then the origin position of the metal probe on the measurement reference plate is compensated and corrected based on the position of the metal probe on the resistor bar 1.

[0025] In order to avoid rigid contact between the metal probe and the resistor bar 1 and thus damage to the metal probe, a flexible metal contact is provided at the detection end of the metal probe so that the metal probe can be flexibly electrically connected to the resistor bar 1 through the flexible metal contact.

[0026] The present invention also provides an origin positioning compensation method in an electrical automatic measurement system, such as Figure 3 As shown, the origin positioning compensation method in the electrical automatic measurement system includes the following steps:

[0027] S1, setting an in-situ calibration area at the origin position of the measurement reference plate of the electrical automatic measurement system, in which a plurality of parallel resistor bars 1 are densely and evenly laid, and two ends of each resistor bar 1 are electrically connected to different voltage sources respectively;

[0028] S2, when the metal probe of the electrical property automatic measurement system returns to the origin, the metal probe is placed on the resistor bar 1 in the in-situ calibration area;

[0029] S3, identifying the electric potential on the metal probe, and determining the position of the metal probe on the resistor strip 1 according to the identified electric potential;

[0030] S4. Determine the origin position of the metal probe according to the position of the resistor bar 1, and compensate and correct the position measured by the metal probe on the measurement reference plate according to the origin position of the metal probe.

[0031] Specifically, the standard origin of the measurement reference plate is the center point of the in-situ calibration area, that is, the intersection of the lines connecting the relative vertices. The range of laying the resistor bar 1 is the entire in-situ calibration area, and the length, thickness and thickness of the resistor bar 1 are all the same. Therefore, different positions on the resistor bar 1 correspond to corresponding positions in the in-situ calibration area. Since different voltage sources are electrically connected to the two ends of each resistor bar 1, the potentials at different positions on the resistor bar 1 are different.

[0032] The relative coordinates between different positions on the resistor bar 1 and the standard origin of the measurement reference plate are pre-stored. When the metal probe falls on the resistor bar 1 in the in-situ calibration area, the metal probe receives the potential at the corresponding position, and the position of the metal probe on the resistor bar 1 is determined according to the identified potential. The origin compensation parameters of the measurement reference plate are calculated based on the relative coordinates between different positions on the resistor bar 1 and the standard origin of the measurement reference plate. The measurement origin position of the automatic electrical measurement system is compensated and corrected according to the origin compensation parameters, thereby improving the positioning accuracy and measurement accuracy of the automatic electrical measurement system.

[0033] Furthermore, insulating strips are provided between adjacent resistor strips 1 to avoid electromagnetic interference between the resistor strips 1 .

[0034] The origin positioning compensation device and method in the electrical automatic measurement system of the present invention uses the potential on the resistor to determine the position of the metal probe on the resistor, and then determines the regression position of the metal probe on the in-situ calibration area, and then compensates and corrects the position measured by the metal probe on the measurement reference plate according to the origin position of the metal probe regression, so as to improve the positioning accuracy and measurement accuracy of the electrical automatic measurement system.

[0035] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0036] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An origin positioning compensation device in an electrical automatic measurement system, characterized in that: The electrical automatic measurement system includes a measurement reference plate, an in-situ calibration area is provided at the origin position of the measurement reference plate, a plurality of resistor bars are densely laid in the in-situ calibration area, and the two ends of each resistor bar are electrically connected to different voltage sources respectively. When the metal probe of the electrical automatic measurement system returns to the origin, the metal probe falls on the resistor bar in the in-situ calibration area; a plurality of parallel resistor bars are evenly laid in parallel in the in-situ calibration area, and the length, thickness and thickness of the resistor bars are all consistent; and an insulating bar is provided between adjacent resistor bars.

2. The origin positioning compensation device in the electrical automatic measurement system according to claim 1, characterized in that: The detection end of the metal probe is provided with a flexible metal contact piece.

3. The origin positioning compensation device in the electrical automatic measurement system according to claim 1, characterized in that: The standard origin of the measurement reference plate is the center point of the in-situ calibration area.

4. A method for compensating origin positioning in an electrical automatic measurement system, characterized in that: The origin positioning compensation method in the electrical automatic measurement system includes the following steps: setting an in-situ calibration area at the origin position of the measurement reference plate of the electrical automatic measurement system, and densely and evenly laying a plurality of parallel resistor bars in the in-situ calibration area, and electrically connecting different voltage sources at both ends of each resistor bar; when the metal probe of the electrical automatic measurement system returns to the origin, the metal probe is made to fall on the resistor bar in the in-situ calibration area; identifying the electric potential on the metal probe, and determining the position of the metal probe on the resistor bar according to the identified electric potential; determining the origin position of the metal probe according to the position of the resistor bar, and compensating and correcting the position measured by the metal probe on the measurement reference plate according to the origin position of the metal probe; the resistor bars are consistent in length, thickness and thickness.

5. The origin positioning compensation method in the electrical automatic measurement system according to claim 4, characterized in that: Insulating strips are provided between adjacent resistor strips.

6. The origin positioning compensation method in the electrical automatic measurement system according to claim 4, characterized in that: The detection end of the metal probe is provided with a flexible metal contact piece.

7. The origin positioning compensation method in the electrical automatic measurement system according to claim 4, characterized in that: The standard origin of the measurement reference plate is the center point of the in-situ calibration area.

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