CN210775818U - On-site calibration device for ship electrical instrument - Google Patents
On-site calibration device for ship electrical instrument Download PDFInfo
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- CN210775818U CN210775818U CN201920934528.4U CN201920934528U CN210775818U CN 210775818 U CN210775818 U CN 210775818U CN 201920934528 U CN201920934528 U CN 201920934528U CN 210775818 U CN210775818 U CN 210775818U
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Abstract
The utility model provides a naval vessel electric instrument on-site calibration equipment. A lower computer is arranged in the checking device, a pressure making and measuring module, a temperature simulation generating and checking module and an electric instrument signal generating module are arranged in the lower computer, one side of the lower computer is connected with the upper computer through signals, and one side of the lower computer is connected with a movable mounting module; the temperature simulation generation module and the 250 ℃ resistor and the 0 ℃ resistor are respectively connected with the output terminal through switches K1, K2 and K3 relays; the temperature acquisition and conditioning circuit of the electric instrument signal generation module inputs data to the temperature verification module and transmits the data to the upper computer through the data transmission module and the serial port connecting cable; the eight-path numerical control resistance generator, the eight-path numerical control current generator, the five-path numerical control voltage generator and the two-path numerical control frequency generator in the functional data generator are respectively connected with the output terminal through the driving capability enhancing circuit. The utility model discloses the device of suitable conduct electric instrument check-up uses.
Description
Technical Field
The utility model relates to a device of electrical instrument check-up usefulness, especially to the naval vessel electrical instrument on-the-spot check-up device of naval vessel that the on-the-spot check-up of electrical instrument used on current naval vessel.
Background
The electric instrument on the modern ship has the function of controlling or displaying the internal state and navigation state of the ship, and the correctness of the data directly influences the judgment of a command and an operator, even influences the navigation safety of the ship. The electrical instrument is an important device of a ship power system, and generally comprises a pressure, temperature, water level, flow and other parameter measurement indicating instruments, a transmitter, a sensor, a signal processing inspection device, a display device and the like, wherein the important parameters must constantly ensure the accuracy and reliability of the electrical instrument, so that the routine maintenance and verification of the ship electrical instrument are required to be regularly carried out; in addition, during the repair of the ship, according to the repair process requirements, the electrical instrument equipment which cannot be disassembled and overhauled inside the ship must be electrified and tested regularly to ensure the good performance of the equipment. For this reason, a dedicated portable electrical instrument field verification device is required.
The function output of the existing portable checking instrument is single at present, and generally does not have all functions required by the checking of the electric instrument, and the function output is basically single-path function output, namely, each function only has one-path signal output, while in the field checking of the electric instrument of a ship, the required signal source is a multi-path function output signal source, so that a large number of portable instruments are required to be matched during checking, and the test space is occupied; in addition, the existing portable check meter is generally designed to be special for a laboratory, the output load capacity is weak, and the overload condition can occur when the electric meter on a ship is driven.
Disclosure of Invention
For the function output of overcoming current portable electric instrument calibration equipment all be single output and the weaker problem of driving force, the utility model provides a naval vessel electric instrument field calibration equipment. The device solves the technical problem of multi-channel output of the functional circuit through multi-channel output of the functional circuit.
The utility model provides a scheme that technical problem adopted is:
a lower computer is arranged in the checking device, a pressure making and measuring module, a temperature simulation generating and checking module and an electric instrument signal generating module are arranged in the lower computer, one side of the lower computer is connected with the upper computer through signals, and one side of the lower computer is connected with a movable mounting module;
the temperature simulation generation module and the 250 ℃ resistor and the 0 ℃ resistor are respectively connected with the output terminal through switches K1, K2 and K3 relays;
the temperature acquisition and conditioning circuit of the electric instrument signal generation module inputs data to the temperature verification module and transmits the data to the upper computer through the data transmission module and the serial port connecting cable;
the eight-path numerical control resistance generator, the eight-path numerical control current generator, the five-path numerical control voltage generator and the two-path numerical control frequency generator in the functional data generator are respectively connected with the output terminal through the driving capability enhancing circuit.
The positive effects are as follows: the utility model integrates various functional outputs required by the on-site calibration of the electrical instrument of the ship into a portable instrument, including voltage, current, resistance, frequency, pressure and temperature, and can carry out integrated calibration on various electrical instruments on the ship on site, thereby changing the condition of using various instruments with numerous independent functions for testing in the past; the functional output of the device is multi-path output, and a driving capability enhancing circuit is added, so that the driving capability of the device output is strong, and the device is suitable for field verification; the molding module and the measuring module of the device have plug-and-play modular functions, namely the modules have independent detachable interfaces, can be combined according to field requirements, are convenient to carry on the field and are beneficial to the miniaturization of the device; the device has the field information input and storage functions, and can be used for carrying out subsequent data query and tracing on the debugging data of field debugging of the electric instrument. The device is suitable for being used as a device for checking the electrical instrument.
Drawings
FIG. 1 is a structural diagram of the present invention;
FIG. 2 is a block diagram of the temperature simulation and calibration module of the present invention;
FIG. 3 is a block diagram of the signal generating module of the electric instrument of the present invention;
fig. 4 is a circuit diagram of the signal generator according to the present invention.
In the figure, 0 is a movable installation module, 1 is a lower computer, 2 is an upper computer, 3 is a pressure making and measuring module, 4 is a temperature simulation generation and verification module, 4.1 is a temperature simulation generation module, 4.2 is a temperature verification module, 5 is an electrical instrument signal generation module, 6 is a serial connection cable, 7 is an eight-path numerical control resistance generator, 8 is an eight-path numerical control current generator, 9 is a five-path numerical control voltage generator, 10 is a two-path numerical control frequency generator, 11 is a driving capability enhancing circuit, 12 is an output terminal, 13 is a temperature acquisition conditioning circuit, and 14 is a data transmission module.
Detailed Description
A lower computer 1 is arranged in the checking device, a pressure making and measuring module 3, a temperature simulation generating and checking module 4 and an electric instrument signal generating module 5 are arranged in the lower computer, one side of the lower computer is connected with a signal of an upper computer 2, and one side of the lower computer is connected with a movable mounting module 0;
the temperature simulation generation module 4.1 is respectively connected with the 250 ℃ resistor and the 0 ℃ resistor through switches K1, K2 and K3 relays and the output terminal 12;
the temperature acquisition and conditioning circuit 13 of the electric instrument signal generation module inputs data to the temperature verification module 4.2 and transmits the data to the upper computer through the data transmission module 14 and the serial port connecting cable 6;
the eight-path numerical control resistance generator 7, the eight-path numerical control current generator 8, the five-path numerical control voltage generator 9 and the two-path numerical control frequency generator 10 in the functional data generator are respectively connected with the output terminal through a driving capability enhancing circuit 11.
The working process is as follows:
the detection signal is input to a lower computer through a movable mounting module, a pressure making and measuring module, a temperature simulation generation and verification module and an electric instrument signal generation module are arranged in the lower computer, and the input signal transmits signal data to an upper computer through a serial port connecting cable; the temperature simulation generation module in the upper computer is respectively transmitted to the output terminals through K1, K2 and K3 relays and connected resistors; the temperature acquisition and conditioning circuit is used for uploading temperature data to an upper computer through a serial port connecting cable by the temperature verification module and the data transmission module; the eight-path numerical control resistance generator, the eight-path numerical control current generator, the five-path numerical control voltage generator and the two-path numerical control frequency generator are transmitted to an output terminal through the driving capability enhancing circuit; the output terminal outputs and displays the resistance, current, voltage, frequency and temperature data.
That is to say, the signals input by the lower computer, including resistance, current, voltage, frequency and temperature signals, input the data to be detected to the lower computer through the mobile installation module, and are processed by the pressure making and measuring module installed in the lower computer, the temperature simulation generation and verification module and the electric instrument signal generation module to form multifunctional signals, and the processed multifunctional signals are transmitted to the upper computer through the serial port connection cable, wherein the temperature simulation generation module, the temperature acquisition and conditioning circuit, the temperature verification module, the data transmission module, the eight-way numerical control resistance generator, the eight-way numerical control current generator, the five-way numerical control voltage generator and the two-way numerical control frequency generator output the processed multifunctional signals to the receiving and displaying device from the output terminal for manual interpretation.
The specific description is as follows:
the device adopts a modular design concept on hardware, namely all functional circuits are designed into independent module circuits without mutual interference.
The upper computer adopts a high-performance capacitive touch industrial personal computer and is responsible for processing a human-computer interface, transmitting an operation command and displaying data;
the lower computer is composed of a portable pressure making and measuring module, a temperature simulation generation and verification module and an electric instrument signal generation module, and the output and the collection of electric functions are completed through a serial port connecting cable.
The portable pressure and measurement module is designed into a plug-and-play detachable mode, namely, the module can be quickly assembled in the device when in use and can be detached in the transportation and storage processes, and the miniaturization of the device is facilitated. The pressure-making part of the module consists of an electric vacuum generating device, an electric positive high voltage generating device and a manual positive pressure input device. The electric vacuum generating device adopts a negative pressure generating device, the device adopts 220V power supply, the air suction speed can reach 50L/Min, the limit air pressure can reach 20pa, the whole weight is about 3 kilograms, and the vacuum generating device is suitable for being used as a special vacuum generating device on site. The positive high pressure generating device adopts a small air pressure generating device, the maximum air pressure reaches 30Mpa, and the positive high pressure generating device is used for the pressure-resistant static pressure test of a field pressure instrument. Meanwhile, a manual positive pressure input device is arranged, the maximum pressure is 1Mpa, and the device is mainly used for accurately regulating and verifying the on-site positive pressure instrument.
The portable pressure measurement and measurement module is characterized in that a pressure measurement part comprises a vacuum measurement sensor, a high-pressure measurement sensor and a pressure calibration sensor, pressure measurement of a pressure measurement system is completed together, the measurement module uniformly adopts standard 4-20 mA output, a sensing core body adopts German imported diffused silicon MIK-P300, and lasting and stable performance guarantee is guaranteed. The measurement accuracy grade of the sensor is 0.25 grade, the long-term stability is less than or equal to 0.2 percent FS/year, and the sensor is suitable for detecting the field pressure. According to the pressure measurement type, 3 pressure modules are selected, namely-0.1-1 Mpa, 0-30 Mpa and 0.1-1 Mpa respectively.
The temperature simulation generation and verification module consists of a temperature simulation generation module, a temperature verification module, a relay, a standard resistor, a temperature acquisition conditioning circuit and a data transmission module, and is used for independently verifying the primary platinum resistance sensor and the secondary measuring instrument respectively. The temperature simulation generation and verification module adopts a numerical control resistance technology, and an upper computer controls a lower computer to generate a required resistance signal through a serial port connecting cable; meanwhile, two precision resistors are arranged in the instrument and used as measurement outputs of two standard points at the temperature of O ℃ and 250 ℃, the accuracy of self-checking is ensured, and an upper computer is connected with a cable through a serial port to control a lower computer to switch K2 and K3 relays when a self-checking signal is accessed. The temperature verification module consists of a temperature acquisition conditioning circuit and a data transmission module, completes temperature acquisition and verification of the primary platinum resistance sensor, and transmits data to the upper computer through a serial port connecting cable.
The electric instrument signal generating module adopts a numerical control generating technology, integrates multiple paths of resistance, current, voltage and frequency signals required by verification into one board to form a numerical control signal generating module, and carries out field calibration on the electric instrument of the ship.
The digital control signal generating module consists of eight digital control resistance generators, eight digital control current generators, five digital control voltage generators and two digital control frequency generators. According to the calibration method and the regulation of the electric instrument, the numerical control signal generation of 0%, 20%, 40%, 80% and 100% standard calibration points can be carried out by an upper computer system, and the numerical control signal generation can also be set by the upper computer according to a signal required by a user. Meanwhile, a driving capability enhancing circuit is added behind the output circuit, and the driving capability of the functional module of resistance, current, voltage and frequency is enhanced and then the functional module is sent to an output terminal for output.
The device consists of an upper computer and a lower computer, wherein the upper computer is a touch industrial personal computer and has the functions of waveform display and real-time data storage; the lower computer is communicated with the upper computer through a serial port connecting line, receives the instruction of the upper computer and simultaneously displays the related information parameters on an industrial control touch screen of the upper computer.
The function output of the device is multiplexed output, and a driving capability enhancing circuit is added, so that the driving capability output by the device is strong, and the device is suitable for field verification.
The lower computer controls the portable pressure-making and measuring module, the temperature simulation generation and verification module and the electric instrument signal generation module to work respectively according to the instruction of the upper computer, so that the field calibration function of the electric instrument of the ship is realized, wherein the portable pressure-making module is provided with an independent detachable interface, and the portable pressure-making module is convenient to carry on the field.
The device integrates various functional outputs such as voltage, current, resistance, frequency, pressure and temperature required by on-site calibration of the ship electrical instrument into a portable instrument, and can carry out integrated calibration on various electrical instruments on the ship on site.
The device has the functions of field information input and storage, and can be used for carrying out subsequent data query and tracing on debugging data of field debugging of the electric instrument.
The technical principle is as follows:
the input data is input and processed through a functional module arranged in the lower computer, the processed signals are input into the upper computer, the input and detected signals are processed through the upper computer and then output through an output terminal, and a receiver displays and interprets the data.
The innovation points are as follows: signals are input and processed by the lower computer, the processed signals are input to the upper computer, different functional signals are processed respectively through selection of set functions, and then detection data are output through an output terminal of the upper computer. That is to say, the lower computer is used for receiving the processing signals, the upper computer respectively processes the input signals and then outputs the selection data through the output terminal. More specifically, the lower computer is used for receiving and processing signals, and the upper computer is used for specifically processing input data and then outputting the signals.
The method is characterized in that:
the device consists of an upper computer and a lower computer, wherein the upper computer is a touch industrial personal computer and has the functions of waveform display, real-time data storage and the like; the lower computer is communicated with the upper computer through a serial port connecting cable, and relevant information parameters are displayed on an industrial control touch screen of the upper computer while receiving instructions of the upper computer. The lower computer controls the portable pressure making and measuring module, the temperature simulation generation and verification module and the electric instrument signal generation module to work respectively according to the instruction of the upper computer, so that the field calibration function of the electric instrument of the ship is realized, wherein the portable pressure making module and the measuring module are provided with independent detachable interfaces, and the portable pressure making module and the measuring module are convenient to carry on the field and are beneficial to device miniaturization.
The device overcomes the defect of single function output, and the single function output is changed into multifunctional signal output through the combined circuit, thereby solving the problem of field calibration application of the electric instrument and enabling the multi-function output to carry out instrument inspection.
The device is a portable check device for on-site check of the marine electrical instrument, wherein all functional circuits can be output in multiple paths and have strong driving capability.
Claims (1)
1. On-spot calibration equipment of naval vessel electric instrument, characterized by:
a lower computer (1) is arranged in the checking device, a pressure making and measuring module (3), a temperature simulation generating and calibrating module (4) and an electric instrument signal generating module (5) are arranged in the lower computer, one side of the lower computer is connected with a signal of an upper computer (2) and the other side of the lower computer is connected with a movable mounting module (0);
wherein the temperature simulation generation module (4.1) and the 250 ℃ resistor and the 0 ℃ resistor are respectively connected with the output terminal (12) through switches K1, K2 and K3 relays;
the temperature acquisition conditioning circuit (13) of the electric instrument signal generation module inputs data to the temperature verification module (4.2) and transmits the data to the upper computer through the data transmission module (14) and the serial port connecting cable (6);
eight paths of numerical control resistance generators (7), eight paths of numerical control current generators (8), five paths of numerical control voltage generators (9) and two paths of numerical control frequency generators (10) in the functional data generator are respectively connected with an output terminal through a driving capability enhancing circuit (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934528.4U CN210775818U (en) | 2019-06-20 | 2019-06-20 | On-site calibration device for ship electrical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934528.4U CN210775818U (en) | 2019-06-20 | 2019-06-20 | On-site calibration device for ship electrical instrument |
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| Publication Number | Publication Date |
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| CN210775818U true CN210775818U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920934528.4U Active CN210775818U (en) | 2019-06-20 | 2019-06-20 | On-site calibration device for ship electrical instrument |
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| CN (1) | CN210775818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856320A (en) * | 2020-06-22 | 2020-10-30 | 渤海造船厂集团有限公司 | Automatic positioning and detecting device for electrical performance of marine electric connector assembly |
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2019
- 2019-06-20 CN CN201920934528.4U patent/CN210775818U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856320A (en) * | 2020-06-22 | 2020-10-30 | 渤海造船厂集团有限公司 | Automatic positioning and detecting device for electrical performance of marine electric connector assembly |
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