CN212779731U - Pressure transmitter verification and calibration device and system - Google Patents
Pressure transmitter verification and calibration device and system Download PDFInfo
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- CN212779731U CN212779731U CN202021156818.XU CN202021156818U CN212779731U CN 212779731 U CN212779731 U CN 212779731U CN 202021156818 U CN202021156818 U CN 202021156818U CN 212779731 U CN212779731 U CN 212779731U
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Abstract
The utility model relates to a pressure transmitter calibration and calibration device, system, belonging to the calibration technical field, the device comprises a signal receiving module, a signal conversion module, a wireless communication conversion module and a standard pressure supply module; and the signal conversion module is respectively connected with the signal receiving module and the wireless communication conversion module. In this application, after inserting pressure transmitter, through the signal process signal conversion module with pressure transmitter output and wireless communication conversion module conversion back, make can be with the target signal wireless transmission after the conversion to predetermineeing the terminal, can set up the verification standard of national regulation in predetermineeing the terminal at the user, thereby come to examine and determine the target pressure transmitter who inserts through the target signal, generate certificate or calibration certificate, save, through electronic operation, need not manual record raw data, high efficiency, it is swift, and simultaneously, through wireless transmission, the work region restriction of staff has been solved, staff's cheapness has been promoted.
Description
Technical Field
The utility model belongs to the technical field of examine and determine, concretely relates to pressure transmitter is examined and is surveyed and calibration device, system.
Background
The pressure transmitter belongs to a compulsory verification measuring instrument and is commonly used for enterprise safety protection. After the country stops collecting mandatory certification fees, more and more enterprises are willing to send pressure transmitters to legal metrological certification agencies for certification and calibration.
Traditional pressure transmitter is surveyed and calibrating device, its theory of operation does: the numerical value displayed or converted by the pressure transmitter is manually recorded on a paper original record, or is connected to a computer through a serial port communication RS232 wire, and then an electronic version verification and calibration certificate is compiled and manufactured on the computer, so that the method has low efficiency and causes great waste of human resources; and limited by a serial port communication RS232 interface, limited by the length of a connecting wire, and incapable of freely moving for calibration work. With the increasing number of pressure transmitters to be inspected, the traditional manual verification and calibration method is not enough to meet the requirement of metering work.
Therefore, how to quickly and efficiently verify and calibrate the pressure transmitter has become a technical problem to be solved urgently in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that prior art exists at least, the utility model provides a pressure transmitter is examined and determine and calibrating device, system to the realization is to pressure transmitter's quick, high-efficient examination and calibration.
The utility model provides a technical scheme as follows:
in one aspect, a pressure transmitter verification and calibration apparatus, comprising: the device comprises a signal receiving module, a signal conversion module, a wireless communication conversion module and a standard pressure supply module; the signal conversion module is respectively connected with the signal receiving module and the wireless communication conversion module;
the standard pressure supply module is used for connecting the target pressure transmitter and providing a preset standard pressure value for the target pressure transmitter;
the signal conversion module is used for connecting a target pressure transmitter, acquiring an output signal of the target pressure transmitter, and converting the output signal into a transfer signal in a first preset format;
the wireless communication conversion module is used for converting the transfer signal into a target signal in a second preset format, so that the target signal can be wirelessly transmitted.
Optionally, the method further includes: presetting a terminal;
the preset terminal is wirelessly connected with the wireless communication conversion module;
and the preset terminal receives the target signal and verifies the target signal.
Optionally, the preset terminal includes: tablet computers or mobile phones.
Optionally, the signal receiving module includes: the device comprises a current signal receiving module and a voltage signal receiving module; the signal conversion module comprises: the device comprises a current signal conversion module and a voltage signal conversion module;
the current signal receiving module is connected with the current signal conversion module;
the voltage signal receiving module is connected with the voltage signal conversion module.
Optionally, the current signal conversion module is: a current signal-to-RS 232 protocol module; the voltage signal conversion module is a voltage signal to RS232 protocol module.
Optionally, the wireless communication conversion module is: the RS232 protocol is converted into a wireless communication module.
Optionally, the current signal receiving module is a current signal plug; the voltage signal receiving module is a voltage signal plug.
Optionally, the method further includes: a pressure connection table; the pressure connecting table is connected with the standard pressure supply module through a soft air duct;
the target pressure transmitter is connected with the pressure connecting table through screws.
Optionally, the method further includes: a power supply module; the power supply module is connected with the signal receiving module.
In yet another aspect, a pressure transmitter verification and calibration system includes: at least one pressure transmitter verification and calibration device and verification terminal;
the verification terminal is respectively connected with each pressure transmitter verification and calibration device.
The utility model has the advantages that:
the embodiment of the utility model provides a pressure transmitter verification and calibration device, system, the device includes signal reception module, signal conversion module, wireless communication conversion module and standard pressure supply module; the signal conversion module is respectively connected with the signal receiving module and the wireless communication conversion module; the standard pressure supply module is used for connecting the target pressure transmitter and providing a preset standard pressure value for the target pressure transmitter; the signal conversion module is used for connecting a target pressure transmitter, acquiring an output signal of the target pressure transmitter, and converting the output signal into a transfer signal in a first preset format; the wireless communication conversion module is used for converting the transfer signal into a target signal in a second preset format, so that the target signal can be wirelessly transmitted. The utility model provides a verification and calibrating device, after inserting pressure transmitter, through the signal process signal conversion module with pressure transmitter output and wireless communication conversion module conversion back, make can be with the target signal wireless transmission after the conversion to predetermineeing the terminal, the measurement personnel can set up the verification standard of national regulation in predetermineeing the terminal, thereby come to examine and determine the target pressure transmitter who inserts through the target signal, generate examination certificate or calibration certificate, save, through electronic operation, need not manual record raw data, high efficiency, it is swift, and simultaneously, through wireless transmission, staff's work region restriction has been solved, staff's cheapness has been promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pressure transmitter calibrating and calibrating device in the prior art according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a pressure transmitter calibrating and calibrating device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another pressure transmitter calibrating and calibrating device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another pressure transmitter verification and calibration system according to an embodiment of the present invention.
Reference numerals: 21-a signal receiving module; 22-a signal conversion module; 23-wireless communication conversion module; 24-a standard pressure supply module; 25-presetting a terminal; 26-a pressure connection table; 27-a power supply module; 211-a current signal receiving module; 212-a voltage signal receiving module; 221-a current signal conversion module; 222-a voltage signal conversion module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The pressure transmitter belongs to a compulsory verification measuring instrument and is commonly used for enterprise safety protection. After the country stops collecting mandatory certification fees, more and more enterprises are willing to send pressure transmitters to legal metrological certification agencies for certification and calibration.
Fig. 1 is a schematic structural diagram of a pressure transmitter verification and calibration device in the prior art provided by an embodiment of the present invention, referring to fig. 1, a pressure transmitter verification or calibration flow in the prior art is: the pressure source 1 is connected to a pressure transmitter 10 via a pressure pipe 9 and provides a standard pressure signal to the pressure transmitter 10. Wherein, thereby standard pressure gauge 5 passes through the vacuum system and shows predetermined standard pressure value, and the vacuum system includes: vacuum pump 7, regulating valve 6 and regulating valve 8. The pressure regulating valve 2 realizes coarse adjustment of the pressure value; the pressure regulating valve 3 is a fine adjustment pressure value, thereby realizing the adjustment of the pressure fine adjustment 4. The rough adjustment, the fine adjustment and the vacuum system jointly ensure the pressure display of a standard pressure gauge 5. The power supply 13 provides power supply for the pressure transmitter 10, the pressure transmitter converts the pressure signal into a direct current signal or a direct voltage signal, and after passing through the load resistor 11, the actual output electrical signal of the pressure transmitter is compared with a theoretical electrical signal corresponding to a standard pressure value at the standard pressure gauge 5 through the direct current ammeter and the direct current voltmeter display module 12, so as to calculate the measurement error of the pressure transmitter.
In the prior art, the numerical value displayed or converted by the pressure transmitter is manually recorded on a paper original record, or is connected to a computer through serial communication RS232 wires, and then an electronic edition verification or calibration certificate is compiled and manufactured on the computer, so that the method has low efficiency and causes great waste of human resources; and limited by a serial port communication RS232 interface, limited by the length of a connecting wire, and incapable of freely moving for calibration work. Based on this, the utility model provides a pressure transmitter is examined and is surveyed and calibrating device.
Fig. 2 is the embodiment of the utility model provides a pressure transmitter examines and determine and calibrating device schematic structure, refer to fig. 2, the utility model provides a pressure transmitter examines and determine and calibrating device, include: the device comprises a signal receiving module 21, a signal conversion module 22, a wireless communication conversion module 23 and a standard pressure supply module 24. The signal conversion module 21 is connected to the signal receiving module 22 and the wireless communication conversion module 23, respectively. And the standard pressure supply module 24 is used for connecting the target pressure transmitter A and providing a preset standard pressure value for the target pressure transmitter A. And the signal conversion module 22 is used for connecting the target pressure transmitter, acquiring an output signal of the target pressure transmitter, and converting the output signal into a transfer signal in a first preset format. The wireless communication conversion module 23 is configured to convert the relay signal into a target signal in a second preset format, so that the target signal can be wirelessly transmitted.
Optionally, the method further includes: presetting a terminal 25; the preset terminal is wirelessly connected with the wireless communication conversion module; and the preset terminal receives the target signal and verifies the target signal.
Specifically, a certain pressure transmitter to be detected is defined as a target pressure transmitter, the target pressure transmitter is connected to the signal receiving module 21, and meanwhile, the standard pressure supplying module 24 supplies pressure of a standard pressure value to the target pressure transmitter. After the signal output by the target pressure transmitter is converted into the transfer signal through the signal conversion module 22, the transfer signal is converted into the target signal through the wireless communication conversion module 23, so that the purpose of transmitting the target signal to the preset terminal 25 through wireless transmission is achieved. The calibrating personnel can restrict the calibration rule on the preset terminal 25 according to the national standard JJJG 882-2019 pressure transmitter calibration regulation, thereby calculating the measurement error of the pressure transmitter through the target signal and the preset standard pressure value and giving the calibration and calibration results.
In this embodiment, a calibrating person can automatically acquire signal data of the pressure transmitter calibrating and calibrating device through a preset terminal, and constrain the calibrating rule according to the national standard jjjg 882-2019 "pressure transmitter calibrating regulation", so that the measuring error of the pressure transmitter is calculated through a target signal and a preset standard pressure value, and a calibrating and calibrating result is given conveniently and quickly. Moreover, the detection personnel can be free from the constraint of a connecting line in the prior art, calibration is carried out on an industrial site through wireless connection, original records and calibration certificates are completed on the site, the verification and calibration efficiency is improved, and manpower is saved. The verification and calibration data can be stored through software of an upper computer, and management is convenient.
Optionally, the preset terminal includes: the tablet computer or the mobile phone may also be other mobile terminals, and is not limited herein.
Fig. 3 is a schematic structural diagram of another pressure transmitter calibrating and calibrating device according to an embodiment of the present invention.
Alternatively, referring to fig. 3, the signal receiving module 21 includes: a current signal receiving module 211 and a voltage signal receiving module 212; a signal conversion module 22, comprising: a current signal conversion module 221 and a voltage signal conversion module 222. The current signal receiving module 211 is connected to the current signal converting module 221; the voltage signal receiving module 212 is connected to the voltage signal converting module 222.
Optionally, the current signal conversion module 221 is: a current signal-to-RS 232 protocol module; the voltage signal conversion module 222 is a voltage signal to RS232 protocol module.
Optionally, the wireless communication conversion module 23 is: the RS232 protocol is converted into a wireless communication module.
Optionally, the current signal receiving module 211 is a current signal plug; the voltage signal receiving module 212 is a voltage signal plug.
For example, the output signal of the target pressure transmitter may be a voltage signal or a current signal, when the output of the target pressure transmitter is a current signal, the current signal receiving module 211 is connected, the current signal receiving module 211 may be a current signal plug, the magnitude of the current signal may be 4mA to 20mA or 0 to 10mA, then, the current signal is converted into an RS232 protocol module through the current signal, so as to realize a/D conversion of the current signal, and the converted digital signal is converted into a D/a conversion of the wireless communication module through the RS232 protocol, and is sent to the preset terminal through the WIFI network. And when the output of the target pressure transmitter is a voltage signal, the voltage signal receiving module 212 is connected, the voltage signal receiving module 212 can be a voltage signal plug, the size of the voltage signal can be 1V-5V, then the voltage signal is converted into an RS232 protocol module through the voltage signal to realize A/D conversion of the voltage signal, and the converted digital signal is converted into a D/A conversion of the wireless communication module through the RS232 protocol and is sent to a preset terminal through a WIFI network. The preset terminal processes the data according to a preset rule, and the processing procedure is the same as the processing method described above, and details are not described here, please refer to the above contents.
Optionally, the method further includes: a pressure connection station 26; the pressure connecting table is connected with the standard pressure supply module through a soft air duct; the target pressure transmitter is connected with the pressure connecting table through screws.
Optionally, the method further includes: a power supply module 27; the power supply module is connected with the signal receiving module. For example, the power module 27 may be connected to a 220V power supply.
The embodiment of the utility model provides a pressure transmitter verification and calibration device, system, the device includes signal reception module, signal conversion module, wireless communication conversion module and standard pressure supply module; the signal conversion module is respectively connected with the signal receiving module and the wireless communication conversion module; the standard pressure supply module is used for connecting the target pressure transmitter and providing a preset standard pressure value for the target pressure transmitter; the signal conversion module is used for connecting the target pressure transmitter, acquiring an output signal of the target pressure transmitter and converting the output signal into a transfer signal in a first preset format; and the wireless communication conversion module is used for converting the transfer signal into a target signal in a second preset format so as to enable the target signal to be wirelessly transmitted. The utility model provides a verification and calibrating device, after inserting pressure transmitter, through the signal process signal conversion module with pressure transmitter output and wireless communication conversion module conversion back, make can be with the target signal wireless transmission after the conversion to predetermineeing the terminal, can set up the verification standard of national regulation in predetermineeing the terminal at the user, thereby come to examine and determine the target pressure transmitter who inserts through the target signal, generate examination certificate or calibration certificate, save, through electronic operation, need not manual record raw data, high efficiency, and is swift, and simultaneously, through wireless transmission, staff's work region restriction has been solved, staff's cheapness has been promoted.
Based on a general utility model design, the embodiment of the utility model provides a still provide a pressure transmitter examination and calibration system.
Fig. 4 is a schematic structural diagram of another pressure transmitter verification and calibration system provided in an embodiment of the present invention, please refer to fig. 4, a system provided in an embodiment of the present invention may include the following structure: at least one pressure transmitter verification and calibration device C and verification terminal B; and the verification terminal B is respectively connected with each pressure transmitter verification and calibration device C.
For example, in a specific verification and calibration system, at least one verification and calibration device and a verification terminal may be included, and each verification and calibration device may implement verification of one pressure transmitter, so that multiple verification and calibration devices may implement verification of multiple pressure transmitters simultaneously, and the verification terminal collects data after verification, thereby implementing simultaneous verification of multiple pressure transmitters, which is convenient and fast.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means at least two unless otherwise specified.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A pressure transmitter verification and calibration apparatus, comprising: the device comprises a signal receiving module, a signal conversion module, a wireless communication conversion module and a standard pressure supply module; the signal conversion module is respectively connected with the signal receiving module and the wireless communication conversion module;
the standard pressure supply module is used for connecting a target pressure transmitter and providing a preset standard pressure value for the target pressure transmitter;
the signal conversion module is used for connecting a target pressure transmitter, acquiring an output signal of the target pressure transmitter, and converting the output signal into a transfer signal in a first preset format;
the wireless communication conversion module is used for converting the transfer signal into a target signal in a second preset format, so that the target signal can be wirelessly transmitted.
2. The apparatus of claim 1, further comprising: presetting a terminal;
the preset terminal is wirelessly connected with the wireless communication conversion module;
and the preset terminal receives the target signal and verifies the target signal.
3. The apparatus of claim 2, wherein the default terminal comprises: tablet computers or mobile phones.
4. The apparatus of claim 1, wherein the signal receiving module comprises: the device comprises a current signal receiving module and a voltage signal receiving module; the signal conversion module comprises: the device comprises a current signal conversion module and a voltage signal conversion module;
the current signal receiving module is connected with the current signal conversion module;
the voltage signal receiving module is connected with the voltage signal conversion module.
5. The apparatus of claim 4, wherein the current signal conversion module is configured to: a current signal-to-RS 232 protocol module; the voltage signal conversion module is a voltage signal to RS232 protocol module.
6. The apparatus of claim 5, wherein the wireless communication conversion module is configured to: the RS232 protocol is converted into a wireless communication module.
7. The device of claim 4, wherein the current signal receiving module is a current signal plug; the voltage signal receiving module is a voltage signal plug.
8. The apparatus of claim 1, further comprising: a pressure connection table; the pressure connecting table is connected with the standard pressure supply module through a soft air duct;
the target pressure transmitter is connected with the pressure connecting table through screws.
9. The apparatus of claim 1, further comprising: a power supply module; the power supply module is connected with the signal receiving module.
10. A pressure transmitter verification and calibration system, comprising: a verification terminal and at least one pressure transmitter verification and calibration apparatus according to any one of claims 1-9;
the verification terminal is respectively connected with each pressure transmitter verification and calibration device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021156818.XU CN212779731U (en) | 2020-06-19 | 2020-06-19 | Pressure transmitter verification and calibration device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021156818.XU CN212779731U (en) | 2020-06-19 | 2020-06-19 | Pressure transmitter verification and calibration device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136537A (en) * | 2021-11-04 | 2022-03-04 | 歌尔微电子股份有限公司 | Pressure sensor |
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2020
- 2020-06-19 CN CN202021156818.XU patent/CN212779731U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136537A (en) * | 2021-11-04 | 2022-03-04 | 歌尔微电子股份有限公司 | Pressure sensor |
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