CN114814365A - Multi-channel test control equipment, automatic multi-channel test system and method - Google Patents
Multi-channel test control equipment, automatic multi-channel test system and method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/206—Switches for connection of measuring instruments or electric motors to measuring loads
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
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Abstract
The application discloses a multi-channel test control device, an automatic multi-channel test system and an automatic multi-channel test method. The multi-channel test control apparatus includes: the system comprises an LCR connector connected with an LCR tester, a DCR connector connected with the DCR tester, a switching module, a plurality of channel output modules and a processing module. The processing module controls the switching module to be connected with the LCR connector or the DCR connector in a conducting mode based on different control instructions sent by the computer device, and transmits corresponding confirmation information to the computer device after controlling the channel output module corresponding to the different control instructions to be connected with or disconnected from the corresponding product to be tested, so that the computer device controls the LCR tester or the DCR tester to test the product to be tested connected with the channel output module in the conducting mode through the switching module based on the different control instructions and the corresponding confirmation information. Therefore, the LCR test and the DCR test are integrated into one work station, and multi-channel test is realized.
Description
Technical Field
The application relates to the technical field of electronic component testing, in particular to a multi-channel test control device, an automatic multi-channel test system and an automatic multi-channel test method.
Background
After electronic components are industrially produced, a special testing device is required to test the electronic components so as to judge whether the electronic components are abnormal or not. For example, an LCR tester is used to measure corresponding physical parameters of capacitance, Resistance, and inductance elements, and a DCR tester is used to measure Direct Current Resistance (DCR) of electronic components.
In the testing process of electronic components, different special testing devices need to be provided with different testing work stations, and the problems of large using quantity and large occupied space of related equipment exist. In addition, the conventional LCR test program and the conventional DCR test program operate in a manual mode to respectively operate the LCR tester and the DCR tester to perform parameter testing on one electronic component, and manually transfer and retest the next electronic component. The problems of low testing efficiency and low production efficiency exist under the condition that LCR testing and DCR testing are required to be carried out on a large batch of electronic components.
Therefore, how to provide a solution to the above technical problems is a problem to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the application provides a multi-channel test control device, an automatic multi-channel test system and a method, which can solve the problems that the number of used related devices is large and the occupied space is large because different special test devices need to be provided with different test work stations, and the problems of low test efficiency and low production efficiency because LCR test and DCR test are carried out on electronic components one by one through manual operation.
In order to solve the technical problem, the present application is implemented as follows:
the application provides a multichannel test control equipment, connects computer unit, LCR tester and DCR tester. The multi-channel test control apparatus includes: connect the LCR connector of LCR tester, connect the DCR connector of DCR tester, switch module, a plurality of passageway output module and processing module, the output of switching module is connected to a plurality of passageway output module, and processing module connects and switches module and a plurality of passageway output module. The switching module is used for conducting and connecting the LCR connector or the DCR connector; each channel output module is used for being connected with or disconnected from a corresponding product to be tested; the processing module is used for controlling the switching module to be connected with the LCR connector or the DCR connector in a conducting mode based on different control instructions sent by the computer device, controlling the channel output module corresponding to the different control instructions to be connected with or disconnected from the corresponding product to be tested, and then transmitting corresponding confirmation information to the computer device, so that the computer device controls the LCR tester to carry out LCR testing on the product to be tested connected with the channel output module in a conducting mode through the switching module based on the different control instructions and the corresponding confirmation information, or controls the DCR tester to carry out DCR testing on the product to be tested connected with the channel output module in a conducting mode through the switching module.
The application provides an automatic change multichannel test system, it includes: LCR tester, DCR tester, test fixture, computer unit and the multichannel test control equipment of this application, the LCR tester, DCR tester and multichannel test control equipment are connected to the computer unit, and multichannel test control equipment connects test fixture. The test fixture is provided with a carrier and a movable module, wherein the carrier is used for bearing a plurality of products to be tested, and the movable module is used for moving the carrier. The multi-channel test control device of the present application further comprises: the processing module is used for controlling the driving module to drive the moving module to move the carrier towards or away from the plurality of channel output modules based on the driving instruction so as to enable the plurality of products to be tested to be physically connected or disconnected with the corresponding plurality of channel output modules. The computer device is used for sending different control instructions and driving instructions to the multi-channel test control equipment and receiving confirmation information from the multi-channel test control equipment; and controlling the LCR tester to carry out LCR test based on different control instructions and the corresponding confirmation information, and obtaining the LCR test result of the product to be tested which is in conduction connection with the channel output module from the LCR tester, or controlling the DCR tester to carry out DCR test and obtaining the DCR test result of the product to be tested which is in conduction connection with the channel output module from the DCR tester.
The application provides an automatic multi-channel testing method, which comprises the following steps: provide multichannel test control equipment, computer unit, test fixture, LCR tester and DCR tester, multichannel test control equipment connects computer unit, test fixture, LCR tester and DCR tester, and multichannel test control equipment includes: the device comprises a switching module, a plurality of channel output modules and a processing module, wherein the channel output modules are correspondingly connected with a plurality of test needles fixed on a test fixture, and the test fixture is provided with a carrier and a moving module; the computer device sends a driving instruction to the multi-channel test control equipment, so that the processing module controls the moving module to move a plurality of products to be tested, which are borne by the carrier, towards a plurality of test needles, and the products to be tested are physically connected with each other; the computer device circularly executes the LCR test program until LCR test results of the products to be tested are obtained, wherein the LCR test program comprises the following steps: sending a first control instruction to the multi-channel test control equipment, enabling the processing module to control the switching module to be connected with the LCR tester in a conduction mode, and returning first confirmation information to the computer device after controlling the channel output module corresponding to the first control instruction to be connected with the corresponding product to be tested in a conduction mode; controlling an LCR tester to perform LCR test based on the first control instruction and the first confirmation information so as to obtain a corresponding LCR test result from the LCR tester; sending a second control instruction to the multi-channel test control equipment, and enabling the processing module to control the channel output module corresponding to the first control instruction to disconnect the corresponding product to be tested and then return second confirmation information to the computer device; the computer device executes the DCR test program in a loop until a DCR test result of each product to be tested is obtained, wherein the DCR test program comprises: sending a third control instruction to the multi-channel test control equipment, enabling the processing module to control the switching module to be in conduction connection with the DCR tester, and controlling the channel output module corresponding to the third control instruction to be in conduction connection with a corresponding product to be tested, and then returning third confirmation information to the computer device; controlling the DCR tester to perform DCR test based on the third control instruction and the third confirmation information so as to obtain a corresponding DCR test result from the DCR tester; sending a fourth control instruction to the multi-channel test control equipment, so that the processing module controls the channel output module corresponding to the third control instruction to disconnect the corresponding product to be tested and then returns fourth confirmation information to the computer device; and the computer device sends another driving instruction to the multi-channel test control equipment, so that the processing module controls the moving module to move the plurality of products to be tested borne by the carrier away from the plurality of test pins, and the physical connection between the plurality of products to be tested and the plurality of test pins is disconnected.
In the embodiment of the application, when the multi-channel test control device is applied to a test station of an electronic component, the multi-channel test control device can be used as a bridge for linking various devices (namely, a computer device, an LCR tester, a DCR tester and a test fixture), so that the LCR test and the DCR test are integrated into one test station, the use number of related devices and control boards and the occupied space of the test station are reduced, and the cost is reduced. In addition, the multi-channel test control device controls the switching module to switch the test mode (namely switching the on-connection LCR tester or the DCR tester) through the processing module and controls the on-connection or off-connection of the plurality of channel output modules to be connected with the corresponding products to be tested, so that the multi-channel LCR test and the DCR test can be realized, and the test efficiency and the production efficiency are improved. In addition, when the multi-channel test control equipment is applied to an automatic multi-channel test system and method, the driving module drives the movable jig to automatically move a plurality of products to be tested to the test position and leave the test position, so that the labor cost is reduced, the test efficiency is improved, and the hourly output (UPH) is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a block diagram of one embodiment of an automated multi-channel test system according to the present application;
FIG. 2 is a schematic diagram illustrating an embodiment of a switch module, an LCR connector, a DCR connector and a channel output module according to the present application;
FIG. 3 is a schematic diagram illustrating connection of another embodiment of a switch module, an LCR connector, a DCR connector and a channel output module according to the present application;
FIG. 4 is a block diagram of another embodiment of an automated multi-channel test system according to the present application; and
FIG. 5 is a flow chart of one embodiment of an automated multi-channel testing method according to the present application.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or similar components or process flows.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, method steps, operations, and/or components, but do not preclude the presence or addition of further features, integers, method steps, operations, components, and/or groups thereof.
It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is described as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.
Please refer to fig. 1, which is a block diagram of an exemplary embodiment of an automated multi-channel test system according to the present application. As shown in fig. 1, an automated multi-channel test system 1 includes: the LCR tester 11, the DCR tester 12, the test fixture 13, the multi-channel test control device 14 and the computer device 15, the computer device 15 is connected with the LCR tester 11, the DCR tester 12 and the multi-channel test control device 14, and the multi-channel test control device 14 is connected with the LCR tester 11, the DCR tester 12 and the test fixture 13.
The testing fixture 13 is provided with a carrier 131 and a moving module 132, wherein the carrier 131 is used for carrying a plurality of products to be tested, and the moving module 132 is used for moving the carrier 131.
The multi-channel test control device 14 includes: the switching module 141, the plurality of channel output modules 142, the processing module 143, the driving module 144, the communication module 145, the LCR connector 146, and the DCR connector 147 are connected, and the processing module 143 connects the switching module 141, the plurality of channel output modules 142, the driving module 144, and the communication module 145. In this embodiment, the number of the channel output modules 142 may be, but is not limited to, four, and the number of the actual channel output modules 142 may be adjusted according to the requirement; it should be noted that, since the channel output modules 142 are disposed in one-to-one correspondence with the products to be tested, the number of the channel output modules 142 is the same as the number of the carriers 131 carrying the products to be tested.
The communication module 145 is used for receiving different control commands and driving commands sent by the computer device 15. In one embodiment, the communication module 145 includes a Universal Serial Bus (USB) interface for connecting with the computer apparatus 15, a 4Pin interface and DB9 interface, and the multi-channel test control apparatus 14 communicates with the computer apparatus 15 through the USB interface of the communication module 145.
The driving module 144 is connected to the moving module 132 for driving the moving module 132. In one embodiment, drive module 144 includes 8 relays through which multi-channel test control device 14 powers movement module 132 to drive movement module 132 to move.
The LCR connector 146 connects to the LCR tester 11 and the DCR connector 147 connects to the DCR tester 12.
The switching module 141 physically connects the LCR connector 146 and the DCR connector 147 for conductively connecting the LCR connector 146 or the DCR connector 147. That is, the switching module 141 is an element having a switching function.
The channel output modules 142 are connected to the output end of the switching module 141, and each channel output module 142 is used for being connected to or disconnected from a corresponding product to be tested. That is, each channel output module 142 is an element having a switch function. In addition, each channel output module 142 is normally disconnected from the corresponding product to be tested.
The processing module 143 is configured to control the driving module 144 to drive the moving module 132 to move the carrier 131 toward or away from the plurality of channel output modules 142 based on a driving instruction sent by the computer device 15, so as to physically connect or disconnect the plurality of products to be tested with or from the corresponding plurality of channel output modules 142. Therefore, the automated multi-channel testing system 1 can automatically move a plurality of products to be tested to and from the testing position through the arrangement of the processing module 143 and the driving module 144 of the multi-channel testing control device 14, thereby reducing the labor cost and improving the testing efficiency.
The processing module 143 is further configured to control the switching module 141 to connect the LCR connector 146 or the DCR connector 147 in a conducting manner based on different control instructions sent by the computer device 15, and transmit corresponding confirmation information to the computer device 15 after controlling the channel output module 142 corresponding to the different control instructions to connect or disconnect with the corresponding to-be-tested product, so that the computer device 15 controls the LCR tester 11 to perform an LCR test on the to-be-tested product connected in a conducting manner with the channel output module 142 through the switching module 141 based on the different control instructions and the corresponding confirmation information, or controls the DCR tester 12 to perform a DCR test on the to-be-tested product connected in a conducting manner with the channel output module 142 through the switching module 141.
The computer device 15 is used for sending different control commands and driving commands to the multi-channel test control equipment 14 and receiving confirmation information from the multi-channel test control equipment 14; based on different control instructions and the corresponding confirmation information, the LCR tester 11 is controlled to perform LCR testing, and an LCR test result of the product to be tested which is in conduction connection with the channel output module 142 is obtained from the LCR tester 11, or the DCR tester 12 is controlled to perform DCR testing, and a DCR test result of the product to be tested which is in conduction connection with the channel output module 142 is obtained from the DCR tester 12. The computer device 15 may be, but not limited to, a desktop computer, a notebook computer, a tablet computer, or a handheld computer.
For example, the processing module 143 may control the switching module 141 to connect the LCR connector 146 in a conducting manner based on the control instruction sent by the computer device 15, and control the 1 st channel output module 142 (i.e., the leftmost channel output module 142 in fig. 1) to connect with the corresponding dut in a conducting manner, and then send back the confirmation information corresponding to the control instruction to the computer device 15, so that the computer device 15 controls the LCR tester 11 to perform the LCR test based on the control instruction and the confirmation information corresponding to the control instruction (since the channel output module 142 is disconnected from the corresponding dut in a normal manner, only the 1 st channel output module 142 is controlled by the processing module 143 to connect with the corresponding dut in a conducting manner, at this time, the LCR tester 11 performs the LCR test on the dut connected with the 1 st channel output module 142 through the switching module 141), and an LCR test result of the product to be tested that is conductively connected to the 1 st channel output module 142 is obtained from the LCR tester 11.
Then, the processing module 143 may control the 1 st channel output module 142 to be disconnected from the corresponding product to be tested or control the 2 nd channel output module 142 (i.e., the 2 nd channel output module 142 from the left in fig. 1) to be connected to the corresponding product to be tested based on different control instructions sent by the computer device 15.
In an example, the processing module 143 may control the 1 st channel output module 142 to disconnect from the corresponding product to be tested based on the control instruction sent by the computer device 15, and then return confirmation information corresponding to the control instruction to the computer device 15, at this time, all the channel output modules 142 are disconnected from the corresponding product to be tested, so that the computer device 15 does not perform any control based on the control instruction and the confirmation information corresponding thereto.
In another example, the processing module 143 may control the 2 nd channel output module 142 to be conductively connected to the corresponding to-be-tested product based on a control instruction sent by the computer device 15, and then return confirmation information corresponding to the control instruction to the computer device 15, so that the computer device 15 controls the LCR tester 11 to perform an LCR test based on the control instruction and the confirmation information corresponding to the control instruction (at this time, the 1 st channel output module 142 and the 2 nd channel output module 142 are both conductively connected to the corresponding to-be-tested product, and therefore, the LCR tester 11 performs an LCR test on two to-be-tested products connected in parallel through the switching module 141), and obtains an LCR test result of the to-be-tested product conductively connected to the 1 st channel output module 142 and the 2 nd channel output module 142 from the LCR tester 11.
Based on the above example, the automated multi-channel testing system 1 can perform the LCR test and the DCR test on each product to be tested by only connecting one channel output module 142 with the corresponding product to be tested at a time; the automated multi-channel testing system 1 can also perform LCR testing and DCR testing on a plurality of products to be tested connected in parallel by means of the plurality of channel output modules 142 being connected to the corresponding products to be tested at the same time.
In an embodiment, the multi-channel test control device 14 further includes a power conversion module 148, connected to the switching module 141, the multiple channel output modules 142, the processing module 143, the driving module 144, and the communication module 145, for converting a power voltage accessed by the multi-channel test control device 14 to supply power to the switching module 141, the multiple channel output modules 142, the processing module 143, the driving module 144, and the communication module 145. Therefore, through the arrangement of the power conversion module 148, the operating voltages required by the switching module 141, the plurality of channel output modules 142, the processing module 143, the driving module 144, and the communication module 145 may be provided. In order to avoid the complexity of the drawing of fig. 1, the power conversion module 148 is used to supply power to the switching module 141, the multiple channel output modules 142, the processing module 143, the driving module 144, and the communication module 145.
In one embodiment, the multi-channel test control apparatus 14 further includes a display module 149 and a connection processing module 143 for displaying the current connection status of the switching module 141 and each of the channel output modules 142 (i.e. displaying that the switching module 141 is currently connected to the LCR connector 146 or the DCR connector 147 and each of the channel output modules 142 is currently connected to or disconnected from its corresponding product to be tested). In another embodiment, the computer device 15 transmits the obtained LCR test result and the LCR test result to the processing module 143 through the communication module 145, and the processing module 143 controls the display module 149 to display the LCR test result and the LCR test result (i.e., the display switching module 141 is further configured to display the LCR test result and the LCR test result), so that the tester can determine whether the test product is abnormal.
In an embodiment, the multi-channel test control device 14 further includes a key module 150 connected to the processing module 143, where the key module 150 includes a reset key 150a, a start key 150b, and a pause key 150c, the reset key 150a is configured to send an initialization instruction to the processing module 143, the pause key 150c is configured to send a pause instruction to the processing module 143, and the start key 150b is configured to send a start instruction (i.e., release the pause state) to the processing module 143.
In an embodiment, the DCR test and the LCR test may adopt a 4-wire measurement method, the LCR connector 146 includes 4 sets of BNC connectors, the DCR connector 147 includes 2 sets of two-row link terminals, and the switching module 141 and each channel output module 142 are respectively two isolated double-pole relays, four-pole relays, or four sets of optical coupling MOS transistors. The internal resistance of the double-pole relay is 30 milliohms (m omega), the response time is about 20ms, and the isolation insulation anti-interference capacity is high; the internal resistance of the four-pole relay is 100 milliohms, and the response time is about 100 ms; the internal resistance of the optical coupling MOS transistor is more than 50 milliohms, the response time is about 1ms, and the switching module 141 and the channel output module 142 can be selected to be two double-pole relays, four-pole relays or four groups of optical coupling MOS transistors which are isolated from each other according to actual requirements.
In an embodiment, please refer to fig. 2, which is a schematic connection diagram of an embodiment of the switch module, the LCR connector, the DCR connector, and the channel output module according to the present application. As shown in fig. 2, the switching module 141 is a four-pole relay, which includes: four first common contacts 141a, four first normally closed contacts 141b, and four first normally open contacts 141c, where the four first common contacts 141a constitute an output end of the switching module 141 connected to the plurality of channel output modules 142, the four first normally closed contacts 141b are connected to the LCR connector 146, and the four first normally open contacts 141c are connected to the DCR connector 147. That is, the switching module 141 includes four single-pole double-throw relay units and normally conductively connects the LCR connector 146. When the processing module 143 controls the switching module 141 to connect the DCR connector 147 in the conducting manner based on the control instruction, the four first common contacts 141a are connected to the four first normally open contacts 141 c; when the processing module 143 controls the switching module 141 to connect the LCR connector 146 in a conductive manner based on the control instruction, the four first normally-closed contacts 141b are connected to the four first common contacts 141 a.
In this embodiment, each channel output module 142 is a four-pole relay, which includes: four third common contacts 142a, four third normally closed contacts 142b, and four third normally open contacts 142 c; in each channel output module 142, the four third common contacts 142a are connected to the output end of the switching module 141 (i.e., the four first common contacts), and the four third normally open contacts 142c are connected to the corresponding products to be tested. That is, each channel output module 142 includes four single-pole double-throw relay units and is normally disconnected from the corresponding product to be tested. When the processing module 143 controls the channel output module 142 to be in conduction connection with the corresponding product to be tested based on the control instruction, the four third common contacts 142a are connected with the four third normally open contacts 142 c; when the processing module 143 controls the channel output module 142 to disconnect the corresponding product to be tested from the corresponding product to be tested based on the control instruction, the four third common contacts 142a are connected to the four third normally-closed contacts 142 b. It should be noted that only two channel output modules 142 are drawn to avoid overcomplicating the drawing of fig. 2.
In another embodiment, please refer to fig. 3, which is a schematic connection diagram of another embodiment of the switching module, the LCR connector, the DCR connector, and the channel output module according to the present application. As shown in fig. 3, the switching module 141 is two isolated dual pole relays 1411, and each dual pole relay 1411 includes: two second common contacts 1411a, two second normally closed contacts 1411b, and two second normally open contacts 1411c, wherein four second common contacts 1411a of the two double pole relays 1411 constitute an output terminal of the switching module 141 connected to the plurality of channel output modules 142, four second normally closed contacts 1411b of the two double pole relays 1411 are connected to the LCR connector 146, and four second normally open contacts 1411c of the two double pole relays 1411 are connected to the DCR connector 147. That is, each of the double pole relays 1411 includes two single pole double throw relay units and is normally conductively connected to the LCR connector 146. Since the 4-wire measurement method tests both voltage and current, selecting the switching module 141 as two dual pole relays 1411 isolated from each other ensures test data stability. When the processing module 143 controls the switching module 141 to connect the DCR connector 147 in the conducting manner based on the control instruction, the four second common contacts 1411a are connected to the four second normally open contacts 1411 c; when the processing module 143 controls the switching module 141 to connect the LCR connector 146 in a conducting manner based on the control instruction, the four second common contacts 1411a are connected to the four second normally-closed contacts 1411 b.
In this embodiment, each channel output module 142 is two fourth double pole relays 1421 isolated from each other, and each fourth double pole relay 1421 includes: two fourth common contacts 1421a, two fourth normally closed contacts 1421b, and two fourth normally open contacts 1421 c; in each channel output module 142, four fourth common contacts 1421a are connected to the output end of the switching module 141 (i.e., four second common contacts 1411 a), and four fourth normally open contacts 1421c are connected to the corresponding products to be tested. That is, each fourth double-pole relay 1421 includes two single-pole double-throw relay units, and each channel output module 142 is normally disconnected from the corresponding product to be tested. When the processing module 143 controls the channel output module 142 to be conductively connected to the corresponding product to be tested based on the control instruction, the four fourth common contacts 1421a are connected to the four fourth normally open contacts 1421 c; when the processing module 143 controls the channel output module 142 to disconnect the corresponding product to be tested from the corresponding product to be tested based on the control instruction, the four fourth common contacts 1421a are connected to the four fourth normally-closed contacts 1421 b. It should be noted that only two channel output modules 142 are drawn to avoid overcomplicating the drawing of fig. 3.
In one embodiment, referring to fig. 1, the multi-channel testing control device 14 further includes a shielding housing 151, the processing module 143, the switching module 141, the plurality of channel output modules 142, the power conversion module 148, a portion of the LCR connector 146, a portion of the DCR connector 147, a portion of the driving module 144, a portion of the communication module 145, a portion of the display module 149, and a portion of the key module 150 are disposed in the shielding housing 151, an interface of each channel output module 142 physically connected to the corresponding product to be tested, an interface of the LCR connector 146 connected to the LCR tester 11, an interface of the DCR connector 147 connected to the DCR tester 12, an interface of the driving module 144 connected to the test fixture 13, an interface of the communication module 145 connected to the computer device 15, a display screen of the display module 149, and a start key 150b, a reset key 150a, and a pause key 150c of the key module 150 are exposed on the surface of the shielding case 151.
In one embodiment, the moving module 132 includes a solenoid valve 1321 and a driving cylinder 1322, the solenoid valve 1321 is connected to the driving module 144, and the solenoid valve 1321 is used for controlling the driving cylinder 1322.
In one embodiment, please refer to fig. 4, which is a block diagram of another embodiment of an automated multi-channel test system according to the present application. As shown in fig. 4, the automated multi-channel testing system 1 includes, in addition to the LCR tester 11, the DCR tester 12, the testing fixture 13, the multi-channel testing control device 14 and the computer device 15, a display screen 16 and an input device 17 respectively connected to the computer device 15, wherein the input device 17 is used for providing input operation commands to make the computer device 15 send control instructions; the display screen 16 is used for displaying the operation command. That is, the tester can input various operation commands through the input device 17 to cause the computer device 15 to transmit corresponding control instructions to the multi-channel test control apparatus 14; the tester can confirm whether the inputted operation command is wrong through the display screen 16. The input device 17 may be, but is not limited to, a keyboard or a mouse.
Please refer to fig. 5, which is a flowchart illustrating an exemplary method of automated multi-channel testing according to the present disclosure. As shown in fig. 5, the automated multi-channel testing method applied to the testing station may include: step 51 to step 55.
In step 51, a multi-channel test control device, a computer device, a test fixture, an LCR tester and a DCR tester are provided, the multi-channel test control device is connected with the computer device, the test fixture, the LCR tester and the DCR tester, and the multi-channel test control device includes: the testing device comprises a switching module, a plurality of channel output modules and a processing module, wherein the channel output modules are correspondingly connected with a plurality of testing needles fixed on a testing jig, and the testing jig is provided with a carrier and a moving module. The multiple channel output modules can be connected to multiple test needles fixed on the test fixture through extension lines, and the positions of the multiple channel test control equipment are convenient to configure.
In step 52, the computer device sends a driving command to the multi-channel test control device, so that the processing module controls the moving module to move the multiple products to be tested, which are carried by the carrier, toward the multiple test pins, so as to be physically connected to each other. Therefore, the multiple products to be tested can be automatically moved to the testing position through the arrangement of the processing module and the driving module.
In step 53, the computer device executes the LCR test procedure in a loop until the LCR test result of each product to be tested is obtained. The LCR test program used for carrying out LCR test on a product to be tested by the computer device comprises: sending a first control instruction to the multi-channel test control equipment, enabling the processing module to control the switching module to be in conduction connection with the LCR tester, and returning first confirmation information to the computer device after controlling the channel output module corresponding to the first control instruction to be in conduction connection with the corresponding product to be tested; controlling an LCR tester to perform LCR test based on the first control instruction and the first confirmation information so as to obtain a corresponding LCR test result from the LCR tester; and sending a second control instruction to the multi-channel test control equipment, so that the processing module controls the channel output module corresponding to the first control instruction to disconnect the corresponding product to be tested and then return second confirmation information to the computer device.
In step 54, the computer device executes the DCR test program in a loop until the DCR test result of each product under test is obtained. The DCR test program used for the computer device to carry out the DCR test on a product to be tested comprises the following steps: sending a third control instruction to the multi-channel test control equipment, enabling the processing module to control the switching module to be in conduction connection with the DCR tester, and controlling the channel output module corresponding to the third control instruction to be in conduction connection with a corresponding product to be tested, and then returning third confirmation information to the computer device; controlling the DCR tester to perform DCR test based on the third control instruction and the third confirmation information so as to obtain a corresponding DCR test result from the DCR tester; and sending a fourth control instruction to the multi-channel test control equipment, so that the processing module controls the channel output module corresponding to the third control instruction to disconnect the corresponding product to be tested and then return fourth confirmation information to the computer device.
In step 55, the computer device sends another driving instruction to the multi-channel test control device, so that the processing module controls the moving module to move the multiple products to be tested, which are borne by the carrier, away from the multiple test pins, thereby disconnecting the physical connection between the multiple products to be tested and the multiple test pins. Therefore, the multiple products to be tested can be automatically kept away from the testing position through the arrangement of the processing module and the driving module.
Therefore, the testing station can apply an automatic multi-channel testing method to obtain the LCR testing result and the DCR testing result of each product to be tested.
In an embodiment, the multi-channel test control device further includes a display module connected to the processing module, the computer device transmits the obtained LCR test result and the LCR test result to the processing module, and the processing module controls the display module to display the LCR test result and the LCR test result, so that a tester can determine whether the test product is abnormal.
To sum up, when the multichannel test control equipment of this application was applied to a test work station of electronic components, can regard as the bridge of linking computer unit, LCR tester, DCR tester and test fixture, let LCR test and DCR test integration to a test work station, reduce the quantity of use of relevant equipment and control panel and the occupation space of test work station to reduce cost expense. In addition, the multichannel test control equipment controls the switching module to switch the test mode (namely switching the on-connection LCR tester or the DCR tester) through the processing module and controls the on-connection or off-connection of the plurality of channel output modules to corresponding products to be tested, so that multichannel LCR test and DCR test can be realized, and the test efficiency and the production efficiency are improved. In addition, when the multi-channel test control equipment is applied to an automatic multi-channel test system and method, the driving module drives the movable jig to automatically move a plurality of products to be tested to the test position and leave the test position, so that the labor cost is reduced, the test efficiency is improved, and the output per hour is improved.
While the invention has been described using the above embodiments, it should be noted that these descriptions are not intended to limit the invention. Rather, this invention encompasses modifications and similar arrangements as would be apparent to one skilled in the art. The scope of the claims is, therefore, to be construed in the broadest manner to include all such obvious modifications and similar arrangements.
Claims (16)
1. A multi-channel test control apparatus for connecting a computer device, an LCR tester and a DCR tester, comprising:
the LCR connector is connected with the LCR tester;
the DCR connector is connected with the DCR tester;
the switching module is used for conducting and connecting the LCR connector or the DCR connector;
the channel output modules are connected with the output end of the switching module, and each channel output module in the channel output modules is used for being connected with or disconnected from a corresponding product to be tested; and
and the processing module is connected with the switching module and the plurality of channel output modules and used for controlling the switching module to be connected with the LCR connector or the DCR connector on the basis of different control instructions sent by the computer device, and transmitting corresponding confirmation information to the computer device after controlling the channel output modules corresponding to the different control instructions to be connected with or disconnected from the corresponding products to be tested, so that the computer device controls the LCR tester to carry out LCR test on the products to be tested connected with the channel output modules through the switching module on the basis of the different control instructions and the confirmation information corresponding to the different control instructions, or controls the DCR tester to carry out DCR test on the products to be tested connected with the channel output modules through the switching module.
2. The multi-channel test control device as claimed in claim 1, further comprising a power conversion module connected to the processing module, the switching module and the plurality of channel output modules for converting a power voltage accessed by the multi-channel test control device to supply power to the processing module, the switching module and the plurality of channel output modules.
3. The multi-channel test control device of claim 1, further comprising a display module coupled to the processing module for displaying a current connection status of the switching module and each of the plurality of channel output modules.
4. The multi-channel test control device of claim 1, further comprising a key module connected to the processing module, wherein the key module comprises a reset key, a start key, and a pause key, the reset key is configured to send an initialization instruction to the processing module, the start key is configured to send a start instruction to the processing module, and the pause key is configured to send a pause instruction to the processing module.
5. The multi-channel test control device of claim 1, wherein when the DCR test and the LCR test employ a 4-wire measurement method, the switching module and each of the plurality of channel output modules are respectively two double-pole relays, four-pole relays, or four groups of optical coupling MOS transistors that are isolated from each other.
6. The multi-channel test control device of claim 5, wherein when the switching module is the four-pole relay, the four-pole relay comprises: the four first common contacts form an output end of the switching module connected with the plurality of channel output modules, the four first normally closed contacts are connected with the LCR connector, and the four first normally open contacts are connected with the DCR connector.
7. The multi-channel test control device of claim 5, wherein the switching module is the two dual pole relays isolated from each other, each of the two dual pole relays comprising: two second common contacts, two second normally closed contacts and two second normally open contacts, four second common contacts of two double pole relays constitute and connect a plurality of passageway output module the output of switching module, four second normally closed contacts of two double pole relays connect the LCR connector, four second normally open contacts of two double pole relays connect the DCR connector.
8. The multi-channel test control device of claim 5, wherein each of the plurality of channel output modules is the four-pole relay, the four-pole relay comprising: four third common contacts, four third normally closed contacts and four third normally open contacts; in each channel output module, the four third common contacts are connected with the output end of the switching module, and the four third normally open contacts are connected with the corresponding products to be tested.
9. The multi-channel test control device of claim 5, wherein each of the plurality of channel output modules is the two double pole relays isolated from each other, each of the two double pole relays comprising: two fourth common contacts, two fourth normally closed contacts and two fourth normally open contacts; in each channel output module, four fourth common contacts of the two double-pole relays are connected with the output end of the switching module, and four fourth normally open contacts of the two double-pole relays are connected with the corresponding products to be tested.
10. The multi-channel test control device of claim 1, wherein when the DCR test and the LCR test use a 4-wire measurement method, the LCR connector is composed of 4 sets of BNC connectors, and the DCR connector is composed of 2 sets of twinned terminals.
11. The multi-channel test control device according to claim 1, further comprising a shielding housing, wherein the processing module, the switching module, the plurality of channel output modules, a part of the LCR connector and a part of the DCR connector are disposed in the shielding housing, and an interface of each of the plurality of channel output modules, which is physically connected to the corresponding test product to be tested, and an interface of the LCR connector, which is connected to the LCR tester, and an interface of the DCR connector, which is connected to the DCR tester, are exposed on a surface of the shielding housing.
12. An automated multi-channel test system, comprising:
an LCR tester;
a DCR tester;
the test fixture is provided with a carrier and a moving module, wherein the carrier is used for bearing a plurality of products to be tested, and the moving module is used for moving the carrier;
the multi-channel test control device of any one of claims 1 to 11, connected to the test fixture, further comprising: the driving module and the communication module; the communication module is used for receiving the different control commands and driving commands; the processing module is used for controlling the driving module to drive the moving module to move the carrier towards or away from the plurality of channel output modules based on the driving instruction so as to physically connect or disconnect the plurality of products to be tested with the corresponding plurality of channel output modules; and
the computer device is connected with the LCR tester, the DCR tester and the multi-channel test control equipment and is used for sending the different control instructions and the driving instructions to the multi-channel test control equipment and receiving the confirmation information from the multi-channel test control equipment; and controlling the LCR tester to perform the LCR test based on the different control instructions and the corresponding confirmation information, and acquiring an LCR test result of the product to be tested which is in conduction connection with the channel output module from the LCR tester, or controlling the DCR tester to perform the DCR test and acquiring a DCR test result of the product to be tested which is in conduction connection with the channel output module from the DCR tester.
13. The automated multi-channel test system of claim 12, wherein the moving module comprises a solenoid valve and a driving cylinder, the solenoid valve is connected to the driving module, and the solenoid valve is used for controlling the driving cylinder.
14. The automated multi-channel test system of claim 12, wherein the drive module comprises an 8-way relay coupled to the mobile module, the multi-channel test control device powering the mobile module through the 8-way relay.
15. The automated multi-channel test system of claim 12, further comprising a display screen and an input device, each connected to the computer device; the input device is used for providing input operation commands so as to enable the computer device to send corresponding control instructions; the display screen is used for displaying the operation command.
16. An automated multi-channel test method, comprising:
providing multichannel test control equipment, computer unit, test fixture, LCR tester and DCR tester, multichannel test control equipment connects the computer unit test fixture LCR tester with the DCR tester, multichannel test control equipment includes: the device comprises a switching module, a plurality of channel output modules and a processing module, wherein the channel output modules are correspondingly connected with a plurality of test needles fixed on a test fixture, and the test fixture is provided with a carrier and a moving module;
the computer device sends a driving instruction to the multi-channel test control equipment, so that the processing module controls the moving module to move the products to be tested, which are borne by the carrier, towards the test needles, and the products to be tested are physically connected with each other;
the computer device circularly executes an LCR test program until an LCR test result of each product to be tested is obtained, wherein the LCR test program comprises the following steps: sending a first control instruction to the multi-channel test control equipment, enabling the processing module to control the switching module to be in conduction connection with the LCR tester, and returning first confirmation information to the computer device after controlling a channel output module corresponding to the first control instruction to be in conduction connection with a corresponding product to be tested; controlling the LCR tester to perform LCR test based on the first control instruction and the first confirmation information so as to obtain a corresponding LCR test result from the LCR tester; sending a second control instruction to the multi-channel test control equipment, so that the processing module controls the channel output module corresponding to the first control instruction to disconnect the corresponding product to be tested and then return second confirmation information to the computer device;
the computer device executes the DCR test program in a circulating manner until a DCR test result of each product to be tested is obtained, wherein the DCR test program comprises: sending a third control instruction to the multi-channel test control device, enabling the processing module to control the switching module to be in conduction connection with the DCR tester, and to control a channel output module corresponding to the third control instruction to be in conduction connection with a corresponding product to be tested, and then returning third confirmation information to the computer device; controlling the DCR tester to perform a DCR test based on the third control instruction and the third confirmation information so as to obtain a corresponding DCR test result from the DCR tester; sending a fourth control instruction to the multi-channel test control equipment, so that the processing module controls the channel output module corresponding to the third control instruction to disconnect the corresponding product to be tested and then return fourth confirmation information to the computer device; and
and the computer device sends another driving instruction to the multi-channel test control equipment, so that the processing module controls the mobile module to move the plurality of products to be tested borne by the carrier away from the plurality of test needles, and the physical connection between the plurality of products to be tested and the plurality of test needles is disconnected.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116298408A (en) * | 2023-02-02 | 2023-06-23 | 珠海市奥德维科技有限公司 | Electronic component testing device, testing and sorting machine, measuring method and electronic equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202929141U (en) * | 2012-11-21 | 2013-05-08 | 桂林赛普电子科技有限公司 | Multi-channel integrative test system |
| CN103592477A (en) * | 2013-11-19 | 2014-02-19 | 中国电子科技集团公司第四十一研究所 | Aerospace level capacitor test switch channel |
| CN207528835U (en) * | 2017-12-04 | 2018-06-22 | 湖北航天技术研究院计量测试技术研究所 | Capacitor parameters test device |
| CN112180173A (en) * | 2020-09-28 | 2021-01-05 | 杭州领挚科技有限公司 | Measuring device |
| CN213544717U (en) * | 2020-11-18 | 2021-06-25 | 上海东缘机电设备有限公司 | Automatic electrical performance testing device for rod position detector |
| CN214174508U (en) * | 2020-12-11 | 2021-09-10 | 上海新跃联汇电子科技有限公司 | Multi-channel automatic testing device |
| CN113777478A (en) * | 2021-05-31 | 2021-12-10 | 北京航天光华电子技术有限公司 | Comprehensive self-checking method of automatic tester |
| CN114113791A (en) * | 2021-11-30 | 2022-03-01 | 北京邦卓尔微电子有限公司 | System and method for testing insulation resistance and on-resistance of connector |
-
2022
- 2022-06-24 CN CN202210721057.5A patent/CN114814365A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202929141U (en) * | 2012-11-21 | 2013-05-08 | 桂林赛普电子科技有限公司 | Multi-channel integrative test system |
| CN103592477A (en) * | 2013-11-19 | 2014-02-19 | 中国电子科技集团公司第四十一研究所 | Aerospace level capacitor test switch channel |
| CN207528835U (en) * | 2017-12-04 | 2018-06-22 | 湖北航天技术研究院计量测试技术研究所 | Capacitor parameters test device |
| CN112180173A (en) * | 2020-09-28 | 2021-01-05 | 杭州领挚科技有限公司 | Measuring device |
| CN213544717U (en) * | 2020-11-18 | 2021-06-25 | 上海东缘机电设备有限公司 | Automatic electrical performance testing device for rod position detector |
| CN214174508U (en) * | 2020-12-11 | 2021-09-10 | 上海新跃联汇电子科技有限公司 | Multi-channel automatic testing device |
| CN113777478A (en) * | 2021-05-31 | 2021-12-10 | 北京航天光华电子技术有限公司 | Comprehensive self-checking method of automatic tester |
| CN114113791A (en) * | 2021-11-30 | 2022-03-01 | 北京邦卓尔微电子有限公司 | System and method for testing insulation resistance and on-resistance of connector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116298408A (en) * | 2023-02-02 | 2023-06-23 | 珠海市奥德维科技有限公司 | Electronic component testing device, testing and sorting machine, measuring method and electronic equipment |
| CN116298408B (en) * | 2023-02-02 | 2023-10-20 | 珠海市奥德维科技有限公司 | Electronic component testing device, testing and sorting machine, measuring method and electronic equipment |
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