CN214843787U - Pressure core multichannel test system - Google Patents
Pressure core multichannel test system Download PDFInfo
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- CN214843787U CN214843787U CN202120566009.4U CN202120566009U CN214843787U CN 214843787 U CN214843787 U CN 214843787U CN 202120566009 U CN202120566009 U CN 202120566009U CN 214843787 U CN214843787 U CN 214843787U
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Abstract
The application provides a pressure core multichannel test system relates to the test equipment field. Pressure core multichannel test system includes: the multi-path selection device comprises relays, the number of the relays is twice that of the pressure cores to be detected, and every two relays are a group and are used for being connected with one pressure core to be detected; the voltage detection device is connected with all the relays; the digital pressure controller is connected with all the pressure core bodies to be detected and is used for applying pressure to the pressure core bodies to be detected; and the controller is respectively connected with the multi-path selection device, the voltage detection device and the digital pressure controller. The pressure core multichannel test system can connect a plurality of pressure cores of waiting to detect simultaneously to treating in proper order and detecting the pressure core and carrying out performance test, effectual improvement efficiency of software testing, and the device cost that constitutes pressure core multichannel test system is lower, can the effectual cost that reduces and detect the pressure core performance, be fit for small-size pressure core manufacturing enterprise's use.
Description
Technical Field
The application relates to the field of test equipment, in particular to a pressure core body multi-path test system.
Background
The high-temperature pressure transmitter is an indispensable part in the industrial field, the high-temperature pressure core is an important component of the high-temperature pressure transmitter, the performance of the high-temperature pressure transmitter directly influences the performance index of the high-temperature pressure transmitter, the accuracy and precision of the transmitter are determined, and therefore the produced pressure core needs to be subjected to performance detection.
At present, two means are provided for detecting the quality of the pressure core bodies, one means is to manually detect the pressure core bodies one by one, the efficiency of the method is very low, errors of detection data are inevitable, and the production efficiency and the delivery quality of products are influenced; the other is an imported automatic detection device, which is high in manufacturing cost, only suitable for large-scale production enterprises and not suitable for small-scale production enterprises.
The above technical problem needs to be further solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a pressure core multichannel test system, when making it can promote detection efficiency, reduces the detection cost.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
the application provides a pressure core multichannel test system in one aspect, includes:
the multi-path selection device comprises relays, the number of the relays is twice that of the pressure cores to be detected, and every two relays are a group and are used for being connected with one pressure core to be detected;
the voltage detection device is connected with all the relays;
the digital pressure controller is connected with all the pressure core bodies to be detected and is used for applying pressure to the pressure core bodies to be detected;
the controller is respectively connected with the multi-path selection device, the voltage detection device and the digital pressure controller;
the controller controls the digital pressure controller to output preset pressure to the pressure core body to be detected, controls one group of relays in the multi-path selection device to be a channel, and controls the rest relays to be open circuits, receives the voltage signal detected by the voltage detection device, and transmits the received voltage signal to the receiving equipment.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Optionally, in the pressure core multi-channel testing system, the multi-channel selecting device further includes:
the shell body, the shell body will be whole the relay holding, and the shell body is provided with the inside and outside first through-hole of intercommunication shell for supply to connect wait to detect the wire rod of pressure core and pass through, and the shell body still is provided with the second through-hole, is used for supplying to connect voltage detection device's wire rod passes through.
Optionally, in the pressure core multi-path testing system, one of the relays in each set is connected to the positive pole of the voltage detection device, and the other relay is connected to the negative pole of the voltage detection device.
Optionally, in the pressure core multi-channel test system, the voltage detection device has an RS-232 standard communication interface, the digital pressure controller has an RS-232 standard communication interface, and the controller has two RS-232 communication modules and a serial port function;
the voltage detection device and the digital pressure controller are both connected with the controller through the RS-232 standard communication interface.
Optionally, in the pressure core multi-channel test system, the voltage detection device is a multimeter or a voltmeter.
Optionally, in the foregoing pressure core multi-channel test system, the controller is one of a single chip microcomputer, a digital signal processor, or a programmable logic controller.
Optionally, in the foregoing pressure core multi-channel test system, the controller is one of a single chip microcomputer, a digital signal processor, or a programmable logic controller.
Optionally, the pressure core multi-channel testing system further includes:
the sealing clamp is provided with a pressure input port and a plurality of pressure output ports communicated with the pressure input port;
the pressure input port is connected with the digital pressure controller, and the pressure output port is connected with the pressure core body to be detected.
Optionally, the pressure core multi-channel test system described above, wherein the digital pressure controller is connected to the pressure input port by a stainless steel capillary tube.
Borrow by above-mentioned technical scheme, the utility model discloses pressure core multichannel test system has following advantage at least:
the embodiment of the utility model provides a pressure core multichannel test system, it passes through the multiplexer device, voltage detection device, equipment such as digital pressure controller and controller constitutes test system, can set up the relay of suitable quantity to the multiplexer device, realize the test work to a plurality of pressure cores, effectual promotion efficiency of software testing, and foretell device cost is relatively lower, so the holistic cost of test system who uses above-mentioned device to constitute is also lower, and then can effectual reduction detection pressure core performance's cost, be fit for small-size pressure core manufacturing enterprise's use.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 schematically illustrates a schematic structural diagram of a pressure core multi-channel test system;
FIG. 2 schematically illustrates a circuit diagram of a controller of a pressure core multi-path testing system in connection with a multiplexing device and a voltage detection device.
The reference numerals in fig. 1 and 2 are:
the pressure detection device comprises a multi-path selection device 1, a relay 11, a pressure core body 2 to be detected, a voltage detection device 3, a digital pressure controller 4, a controller 5 and a wireless communication module 6.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
As shown in fig. 1, a pressure core multi-path test system according to an embodiment of the present invention includes:
the multi-path selection device 1 comprises relays 11 with the number twice that of the pressure cores 2 to be detected, and every two relays 11 are in a group and are used for being connected with one pressure core 2 to be detected;
a voltage detection device 3 connected to all of the relays 11;
the digital pressure controller 4 is connected with all the pressure core bodies 2 to be detected and is used for applying pressure to the pressure core bodies 2 to be detected;
a controller 5 connected to the multiplexer 1, the voltage detector 3, and the digital pressure controller 4, respectively;
the controller 5 controls the digital pressure controller 4 to output preset pressure to the pressure core body 2 to be detected, controls one group of the relays 11 in the multi-path selection device 1 to be open circuits and the other relays 11 to be open circuits, receives the voltage signals detected by the voltage detection device 3, and transmits the received voltage signals to the receiving equipment.
Specifically, the multi-path selection device 1 mainly comprises a relay 11, and the signal output of the pressure core body 2 to be detected is controlled through the on-off of the relay 11, that is, the relay 11 controls the pressure core body 2 to be detected to output an electric signal to the voltage detection device 3. Therefore, it should be noted that the number of the relays 11 in the multi-path selection device 1 needs to be twice the number of the pressure cores 2 to be detected, and two relays are grouped into one group and are respectively connected to the pressure cores 2 to be detected, and then are respectively connected to the positive electrode and the negative electrode of the voltage detection device 3.
The pressure core body 2 to be detected can be a high-temperature pressure core body, the voltage detection device 3 can be a universal meter, a voltmeter or a detection device with a voltage electric measurement circuit, and the universal meter and the voltmeter can select proper precision according to the detection requirement. The wire rods of the pressure core body 2 to be detected and the voltage detection device 3 to be connected and the wire rods of the pressure core body 2 to be detected and the relay 11 to be connected can be selected from common wire rods or high-temperature-resistant wire rods according to needs.
The digital pressure controller 4 can be adapted to a suitable model according to the performance of the pressure core 2 to be detected and can be obtained by means of procurement. The digital pressure controller 4 can be connected by a common tooling fixture of a pressure core production factory as long as the pressure output by the digital pressure controller 4 can act on the pressure core 2 to be detected.
The controller 5 may store a program for controlling the system detection operation in advance, where the program is written simply by a technician according to the actual operation steps for detecting the performance of the pressure core 2 to be detected, and is a technology known by the technician, and is not described herein again.
The embodiment of the utility model provides a pressure core multichannel test system's working method does: firstly, connecting a pressure core body 2 to be detected with a relay 11 in a multi-path selection device 1 and connecting the pressure core body with a digital pressure controller 4; then, the controller 5 controls the digital pressure controller 4 to apply appropriate pressure to the pressure core body 2 to be detected, such as the pressure of a zero value point of the pressure core body 2 to be detected and the pressure in a full range; then, the on-off of the relays 11 in the multi-path selection device 1 is controlled, namely, one group of relays 11 connected with one pressure core body 2 to be detected is controlled to be in an on state, the rest groups of relays 11 are controlled to be in an off state, and then the current voltage of the voltage detection device 3, namely a voltage signal, is read; the voltage detection means 3 then transmits the voltage signal to the controller 5, and the controller 5 transmits the obtained voltage signal to a receiving device, such as a storage device, a computer device, etc.; and then the controller 5 sequentially switches and controls the other group of relays 11 connected with the undetected pressure core body 2 to be detected to be switched on, and the rest groups of relays 11 are switched off, and voltage signals are obtained and transmitted until all the pressure core bodies 2 to be detected are tested.
The embodiment of the utility model provides a pressure core multichannel test system, it is through multiplexer 1, voltage detection device 3, equipment such as digital pressure controller 4 and controller 5 constitutes test system, can set up the relay 11 of suitable quantity to multiplexer 1, the realization is to the test work of a plurality of pressure cores, effectual promotion efficiency of software testing, and foretell device cost is lower relatively, so the holistic cost of test system who uses above-mentioned device to constitute is also lower, and then can effectual reduction detection pressure core performance's cost, be fit for small-size pressure core manufacturing enterprise's use.
In a specific implementation, the multiplexing device 1 further includes: the outer casing (not shown in the figure), the outer casing will all relay 11 holding, and the outer casing is provided with the inside and outside first through-hole of intercommunication shell for the confession is connected the wire rod of waiting to detect pressure core 2 passes through, and the outer casing still is provided with the second through-hole, is used for the confession to be connected the wire rod of voltage detection device 3 passes through.
Specifically, a structure such as a card slot, a slide rail, or a bolt hole for mounting and fixing the plurality of relays 11 may be provided in the outer housing, so that the plurality of relays 11 may be neatly arranged in the outer housing, for example, in a linear arrangement, a matrix arrangement, or the like. The mode that the wire connected with the relays 11 is led out by using the through holes is removed from the outer shell, and the second through holes can be arranged into two connecting ends, so that one of the relays 11 in each group is connected with the first connecting end, the other relay is connected with the second connecting end, and then the first connecting end and the second connecting end are correspondingly connected with the positive electrode and the negative electrode of the voltage detection device 3.
In a specific implementation, one of the relays 11 in each set of the relays 11 is connected to the positive pole of the voltage detection device 3, and the other relay 11 is connected to the negative pole of the voltage detection device 3. Under the condition that the relay 11 is communicated, the signal output by the pressure core body 2 to be detected can be measured by the positive electrode and the negative electrode of the voltage detection device 3, namely the magnitude of the pressure applied is expressed by the magnitude of the voltage.
In a specific implementation, the voltage detection device 3 has an RS-232 standard communication interface, the digital pressure controller 4 has an RS-232 standard communication interface, and the controller 5 has two RS-232 communication modules and a serial port function; the voltage detection device 3 and the digital pressure controller 4 are both connected with the controller 5 through the RS-232 standard communication interface.
Specifically, the RS-232 standard communication interface is one of the mainstream serial communication interfaces, and has the advantages of few transmission lines, simple wiring, and long transmission distance, and the RS-232 standard communication interface defines the voltage levels of logic 1 and logic 0, that is, 1 and 0 can be used to represent high and low levels, and further, the output of the control command is realized by the high and low level output mode.
In a specific implementation, the controller 5 is one of a single chip, a digital signal processor, or a programmable logic controller. In order to further achieve the purpose of saving cost, the controller 5 is preferably a single chip microcomputer.
Specifically, as shown in fig. 2, concrete connection circuit when controller 5 is the singlechip, it is visible can choose for use the singlechip that has 40 interfaces as required, the adaptation this moment sets up relay 11 in the multi-path selection device to 40 to and divide into 40 relays 11 two sets of positive negative pole with voltage detection device 3 respectively and be connected, two relays wait to detect the pressure core for a set of correspondence like this, then the embodiment of the utility model provides a pressure core multi-path test system can connect 20 simultaneously and wait to detect the pressure core and detect.
In particular implementation, the embodiment of the utility model provides a pressure core multichannel test system still includes: a wireless communication module 6, wherein the wireless communication module 6 is connected with the controller 5.
Specifically, the wireless communication module 6 may be integrated with the controller 5 itself or may be external, and the wireless communication module 6 may be a bluetooth, WIFI or other communication module, as long as wireless data transmission can be achieved, and may be selected according to a specific use environment.
In the concrete implementation, wherein the utility model provides a pressure core multichannel test system still includes: a sealing clamp (not shown) having a pressure input port and a plurality of pressure output ports in communication with the pressure input port; the pressure input port is connected with the digital pressure controller 4, and the pressure output port is connected with the pressure core body 2 to be detected; the digital pressure controller 4 is connected with the pressure input port through a stainless steel capillary.
Specifically, the sealing jig may be any jig having a communicating cavity capable of being sealingly connected, which is commonly used in the current factory, or which satisfies the above-described condition for connecting the digital pressure controller 4 and the plurality of pressure cores 2 to be detected. Or can wait to detect 2 quantity design suitable sealing fixture of pressure core according to the while, have on the sealing fixture promptly and wait to detect the pressure delivery outlet that 2 quantity of pressure core are the same, and this pressure delivery outlet need can wait to detect 2 sealing connection of pressure core, and a plurality of pressure delivery outlets need with pressure input port UNICOM, digital pressure controller 4 applys pressure to a plurality of pressure cores 2 that wait to detect simultaneously promptly.
In a specific implementation, the power supply of the pressure core 2 to be detected can be directly used in the power supply facility of the production plant, and can be supplied with a constant current of 1mA, for example.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed apparatus should not be construed to reflect the intent as follows: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the components of the apparatus of the embodiments may be adapted and arranged in one or more arrangements different from the embodiments. The components of the embodiments may be combined into one component and, in addition, they may be divided into a plurality of sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the components of any apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination. The various component embodiments of the present invention may be implemented in hardware, or in a combination thereof.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or element does not exclude the presence of a plurality of such components or elements. The present invention can be implemented with the aid of a device comprising a number of different components. In the claims enumerating several means, several of these means may be embodied by one and the same item. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (9)
1. A pressure core multi-channel test system, comprising:
the multi-path selection device comprises relays, the number of the relays is twice that of the pressure cores to be detected, and every two relays are a group and are used for being connected with one pressure core to be detected;
the voltage detection device is connected with all the relays;
the digital pressure controller is connected with all the pressure core bodies to be detected and is used for applying pressure to the pressure core bodies to be detected;
the controller is respectively connected with the multi-path selection device, the voltage detection device and the digital pressure controller;
the controller controls the digital pressure controller to output preset pressure to the pressure core body to be detected, controls one group of relays in the multi-path selection device to be a channel, and controls the rest relays to be open circuits, receives the voltage signal detected by the voltage detection device, and transmits the received voltage signal to the receiving equipment.
2. The pressure core multi-channel test system of claim 1, wherein the multiplexing device further comprises:
the shell body, the shell body will be whole the relay holding, and the shell body is provided with the inside and outside first through-hole of intercommunication shell for supply to connect wait to detect the wire rod of pressure core and pass through, and the shell body still is provided with the second through-hole, is used for supplying to connect voltage detection device's wire rod passes through.
3. The pressure core multi-channel test system of claim 1,
one relay in each group of relays is connected with the anode of the voltage detection device, and the other relay is connected with the cathode of the voltage detection device.
4. The pressure core multi-channel test system of claim 1,
the voltage detection device is provided with an RS-232 standard communication interface, the digital pressure controller is provided with an RS-232 standard communication interface, and the controller has two RS-232 communication modules and a serial port function;
the voltage detection device and the digital pressure controller are both connected with the controller through the RS-232 standard communication interface.
5. The pressure core multi-channel test system of claim 3 or 4,
the voltage detection device is a multimeter or a voltmeter.
6. The pressure core multi-channel test system of claim 1,
the controller is one of a single chip microcomputer, a digital signal processor or a programmable logic controller.
7. The pressure core multi-channel test system of claim 6, further comprising:
a wireless communication module connected with the controller.
8. The pressure core multi-channel test system of claim 1, further comprising:
the sealing clamp is provided with a pressure input port and a plurality of pressure output ports communicated with the pressure input port;
the pressure input port is connected with the digital pressure controller, and the pressure output port is connected with the pressure core body to be detected.
9. The pressure core multi-channel test system of claim 8,
the digital pressure controller is connected with the pressure input port through a stainless steel capillary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120566009.4U CN214843787U (en) | 2021-03-19 | 2021-03-19 | Pressure core multichannel test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120566009.4U CN214843787U (en) | 2021-03-19 | 2021-03-19 | Pressure core multichannel test system |
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| Publication Number | Publication Date |
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| CN214843787U true CN214843787U (en) | 2021-11-23 |
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| CN202120566009.4U Active CN214843787U (en) | 2021-03-19 | 2021-03-19 | Pressure core multichannel test system |
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