Universal auxiliary device for measurement standard device

Abstract

The utility model belongs to the field of special oil measuring instrument logging professional standard measuring instruments, and particularly relates to a universal type measuring standard instrument auxiliary device. The utility model aims to solve the problems that the accuracy of a detection device is not uniform, the standard power supply of the detected sensor is not integrated and the measured current value cannot be directly displayed when the sensor matched with the logging instrument is detected. A conductivity sensor interface is connected with one end of a measuring module, the other end of the measuring module is connected with a power supply module, and the power supply module is used for supplying power to a measured component; the resistance adjusting module is connected with an induction coil of the conductivity sensor and provides different resistances. According to the utility model, through the integrated voltmeter, the voltage and current stabilizing module and the ammeter, a stable and accurate power supply can be provided for the detected sensor, and the current value can be directly read and displayed, so that the detection accuracy is greatly improved. The problem of measurement errors caused by inconsistent power supply in a traditional detection method is solved.

Description

Technical Field

[0001] The utility model belongs to the field of petroleum special measuring instruments and well logging professional standard measuring instruments, and specifically relates to a universal measuring standard auxiliary device. Background Art

[0002] Metrology technology is rapidly advancing, further strengthening the traceability and transmission of measurement values. This is particularly evident with the introduction and application of various metrological standards. These standards, used in instrument and sensor testing, provide technical assurance for the accuracy of instrument and sensor values, ensuring accurate data collection during drilling operations and providing first-hand information for smooth drilling operations. As domestic oil fields enter the later stages of exploration and development, drilling requirements are becoming increasingly stringent, with increasingly detailed formation studies. Consequently, the accuracy requirements for various logging parameters are also increasing. Whether the performance of instruments and sensors can achieve the required accuracy is crucial, making metrological standards for testing instruments and sensors of paramount importance. Currently, separate testing methods are used in China for testing sensors used in mud logging units. The accuracy of various testing devices varies, and some sensors under test are not integrated with the standard power supply. This requires additional power supply equipment to provide the standard voltage. Furthermore, the measured current value cannot be directly displayed, requiring a standard digital multimeter to be connected in series between the standard and the sensor under test to obtain the sensor's current value.

[0003] Based on this, the utility model proposes a universal measurement standard auxiliary device. Utility Model Content

[0004] In order to solve the above-mentioned problems in the existing technology, namely, the current domestic detection of the sensors supporting the logging instrument adopts a separate detection method, which has problems such as inconsistent detection device accuracy, inconsistent standard power supply for the measured sensors, and inability to directly display the measured current value. The utility model provides a universal measurement standard auxiliary device, which is connected to the conductivity sensor interface and includes a measurement module, a power supply module and a resistance adjustment module;

[0005] The conductivity sensor interface is connected to one end of the measurement module, and the other end of the measurement module is connected to the power supply module, and the power supply module is used to supply power to the measured component;

[0006] The resistance adjustment module is connected to the induction coil of the conductivity sensor and provides resistances of different sizes.

[0007] In some preferred embodiments, the measurement module includes a voltmeter, a voltage and current stabilization module, and an ammeter;

[0008] The voltmeter is connected to the conductivity sensor interface, the voltage and current stabilizing module and the ammeter, and the voltage and current stabilizing module is connected to the power supply module;

[0009] The G end and the positive end of the voltmeter are connected to the conductivity sensor interface, the positive end of the voltmeter is also connected to the positive end of the voltage and current stabilizing module and the positive end of the ammeter, and the negative end of the voltage and current stabilizing module is connected to the negative ends of the voltmeter and the ammeter.

[0010] In some preferred embodiments, the power supply module includes a lithium battery and a charging port.

[0011] The positive terminal of the lithium battery is connected to the positive terminal of the voltage and current stabilizing module, and the negative terminal of the lithium battery is connected to the negative terminal of the voltage and current stabilizing module;

[0012] The positive terminal of the lithium battery is connected to the positive terminal of the charging port, and the negative terminal of the lithium battery is connected to the negative terminal of the charging port.

[0013] In some preferred embodiments, a switch is installed between the lithium battery and the voltage and current stabilizing module.

[0014] In some preferred embodiments, the resistance adjustment module includes multiple resistors; one end of each resistor is connected to one end of the COM common interface, and the other end of the COM common interface passes through the induction coil of the resistivity sensor and is plugged into the other end of the resistor.

[0015] In some preferred embodiments, the resistor is a detachable resistor.

[0016] In some preferred embodiments, the resistor is a resistor with adjustable resistance.

[0017] In some preferred embodiments, the conductivity sensor interface is a three-core female interface.

[0018] In some preferred implementations, the voltmeter, the voltage and current stabilizing module, and the ammeter are all connected to a communication interface, and the communication interface is connected to a remote control terminal.

[0019] Beneficial effects of the utility model:

[0020] This invention ensures the safety of the measurement standard and auxiliary equipment during the testing process, while also ensuring the measurement accuracy of the sensor and improving the convenience of standard operation. This universal measurement standard auxiliary device compensates for the shortcomings of purchased measurement standards. It can also solve the initial diagnosis of most sensor failures at construction sites and accurately detect conductivity sensors, specifically in the following aspects:

[0021] Improved detection accuracy: Through its integrated measurement module (including a voltmeter, a voltage and current regulator, and an ammeter), the auxiliary device provides a stable and accurate power supply to the sensor being tested, while directly reading and displaying the current value, significantly improving detection accuracy. This eliminates the measurement errors caused by inconsistent power supply in traditional detection methods.

[0022] Simplified operation process: Due to the integrated design of the power supply module and measurement module, there is no need to configure additional power supply equipment or use a standard digital multimeter to obtain current values. This simplifies the detection process and reduces the number of operation steps, allowing field engineers and technicians to complete sensor calibration and testing more quickly and conveniently.

[0023] Enhanced compatibility and flexibility: The use of a three-core female connector as the conductivity sensor interface not only ensures good compatibility with most sensors on the market, but also facilitates replacement of different types of sensors for testing, enhancing the versatility and adaptability of the system.

[0024] Improve work efficiency: This device is particularly suitable for detecting sensors supporting mud logging instruments in fields such as oil drilling. Its efficient detection capabilities and accurate data output help to promptly identify and solve problems, ensure the safe and efficient operation of drilling operations, and thus improve the execution efficiency of the entire project. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 This is a structural connection diagram of a universal measurement standard auxiliary device of the utility model. DETAILED DESCRIPTION

[0027] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only portions relevant to the relevant utility model are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] like Figure 1 As shown, the utility model provides a universal measurement standard auxiliary device, which is connected to the conductivity sensor interface 1 and includes a measurement module, a power supply module and a resistance adjustment module;

[0030] The conductivity sensor interface 1 is connected to one end of the measuring module, and the other end of the measuring module is connected to the power supply module, which is used to supply power to the measured component;

[0031] The resistance adjustment module is connected to the induction coil of the conductivity sensor and provides resistances of different sizes.

[0032] As a further explanation of the present invention, the measuring module includes a voltmeter 2, a voltage and current stabilizing module 3 and an ammeter 4;

[0033] The voltmeter 2 is connected to the conductivity sensor interface 1, the voltage and current stabilizing module 3 and the ammeter 4, and the voltage and current stabilizing module 3 is connected to the power supply module;

[0034] Specifically, the G end and the positive end of the voltmeter 2 are connected to the conductivity sensor interface 1, the positive end of the voltmeter 2 is also connected to the positive end of the voltage and current stabilizing module 3 and the positive end of the ammeter 4, the negative end of the voltage and current stabilizing module 3 is connected to the negative end of the voltmeter 2 and the ammeter 4, and the voltage and current stabilizing module 3 is connected to the power supply module.

[0035] The voltage and current stabilization module 3 is a MORNSUN URB2424LD-30WR3A4S module. The maximum rated current of the ammeter 4 is 30 mA. The maximum rated voltage of the voltmeter 2 is 30 V.

[0036] The interface of the conductivity sensor interface 1 is a three-core female interface, two of which are connected to the two G terminals, and the other is connected to the positive terminal of the voltmeter.

[0037] Wherein, the G terminal is a ground terminal.

[0038] The interface 1 of the sensor is used to connect to the sensor to be measured, and the buckle type and the buckle type of the end of the sensor to be measured match each other.

[0039] Voltmeter 2 provides standard voltage to the sensor under test and displays the standard voltage value.

[0040] The voltage and current stabilization module 3 stabilizes the input voltage and current through this module and outputs the standard output.

[0041] The ammeter 4 displays the measured current output value.

[0042] The switch 5 is connected or disconnected through two groups of on and off.

[0043] The lithium battery 6 is used to provide a (9-36) VDC voltage output for the sensor.

[0044] The auxiliary device can provide stable power supply for the detected sensor of the main measurement standard and measure the current value within a predetermined range (4-20mA), thereby assisting the detection operation of the main measurement standard and solving the defects of the main measurement standard itself.

[0045] As a further explanation of the present invention, the power supply module includes a lithium battery 6 and a charging port 7;

[0046] The positive terminal of the lithium battery 6 is connected to the positive terminal of the voltage and current stabilizing module 3, and the negative terminal of the lithium battery 6 is connected to the negative terminal of the voltage and current stabilizing module 3;

[0047] The positive terminal of the lithium battery 6 is connected to the positive terminal of the charging port 7 , and the negative terminal of the lithium battery 6 is connected to the negative terminal of the charging port 7 .

[0048] The voltage and current stabilizing module 3 has two positive terminals and two negative terminals, one pair of which is connected to the voltmeter 2 and the ammeter 4 , and the other pair of which is connected to the lithium battery 6 .

[0049] As a further explanation of the present invention, a switch 5 is installed between the lithium battery 6 and the voltage and current stabilizing module 3 .

[0050] Among them, the switch 5 and the lithium battery 6 also have two positive terminals and two negative terminals respectively, one pair of positive terminals and negative terminals are connected to the other pair of positive terminals and negative terminals of the voltage and current stabilizing module 3, the other pair of positive terminals and negative terminals of the switch 5 are connected to one pair of positive terminals and negative terminals of the lithium battery 6, and the other pair of positive terminals and negative terminals of the lithium battery 6 are connected to the charging port 7.

[0051] The lithium battery 6 is a rechargeable battery that serves as the device's primary power source. It can store electrical energy and provide power to the device even without an external power source. In this utility model, the lithium battery 6 is connected to other circuit components via the voltage and current stabilization module 3, ensuring stable and reliable power output to these components. Furthermore, the lithium battery 6 is connected to the charging port 7, allowing it to be recharged when an external power source is connected through the charging port 7 for further use.

[0052] The charging port 7 is the interface for connecting the device to an external power source. Its primary function is to allow the user to charge the lithium battery 6 by plugging in a charger. The design of the charging port 7 typically takes safety and compatibility into account, accommodating different charger types. In the present invention, the charging port 7 is directly connected to the lithium battery 6, ensuring a safe and efficient charging process.

[0053] In addition, a switch 5 is installed between the lithium battery 6 and the voltage and current stabilization module 3. This means that the user can use this switch 5 to control whether the lithium battery 6 supplies power to the voltage and current stabilization module 3, thereby turning the entire circuit on or off. This design not only facilitates user operation, but also helps save energy and extend the service life of the lithium battery 6.

[0054] The resistance adjustment module in the present invention includes multiple resistors 8; one end of each resistor 8 is connected to one end of a COM common interface 9, and the other end of the COM common interface 9 passes through the induction coil of the resistivity sensor and is plugged into the other end of the resistor 8.

[0055] The resistor 8 is a detachable resistor or a resistor with adjustable resistance.

[0056] Specifically, in the present invention, four resistors are preferably provided, namely R1, R2, R3, and R4, and two groups are set: one solution is that R1, R2, R3, and R4 are detachable resistors, which can be replaced according to the requirements of different types of conductivity sensors for resistors. The device can calibrate two different types of conductivity sensors at the same time through two groups of resistors set on the left and right.

[0057] Another solution: Replace R1, R2, R3, and R4 with adjustable resistors. This device can calibrate multiple types of conductivity sensors at the same time.

[0058] The voltmeter 2, the voltage and current stabilizing module 3 and the ammeter 4 in the present invention are all connected to a communication interface, and the communication interface is connected to a remote control terminal.

[0059] The remote control terminal may be an APP, and the communication interface may be wired communication or wireless communication.

[0060] Specifically, the voltmeter 2 and the voltage and current stabilizing module 3 are only displays of secondary instruments. The corresponding values can be read on the APP through the established communication interface. The calibration report can be output in an editable format through the APP to reduce the influence of human factors and ensure the reliability of the calibration results. The voltmeter and ammeter can also be calibrated (zeroed, etc.) through the APP software.

[0061] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0063] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0064] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A universal metrology standard auxiliary device, connected to a conductivity sensor interface (1), characterized in that: Including measurement module, power supply module and resistance adjustment module; The conductivity sensor interface (1) is connected to one end of the measuring module, and the other end of the measuring module is connected to the power supply module, and the power supply module is used to supply power to the measured component; The resistance adjustment module is connected to the induction coil of the conductivity sensor and provides resistances of different sizes.

2. A universal measurement standard auxiliary device according to claim 1, characterized in that: The measuring module comprises a voltmeter (2), a voltage and current stabilizing module (3) and an ammeter (4). The voltmeter (2) is connected to the conductivity sensor interface (1), the voltage and current stabilization module (3) and the ammeter (4), and the voltage and current stabilization module (3) is connected to the power supply module.

3. A universal measurement standard auxiliary device according to claim 2, characterized in that: The G terminal and the positive terminal of the voltmeter (2) are connected to the conductivity sensor interface (1), the positive terminal of the voltmeter (2) is also connected to the positive terminal of the voltage and current stabilizing module (3) and the positive terminal of the ammeter (4), and the negative terminal of the voltage and current stabilizing module (3) is connected to the negative terminals of the voltmeter (2) and the ammeter (4).

4. A universal measurement standard auxiliary device according to claim 3, characterized in that: The power supply module includes a lithium battery (6) and a charging port (7), The positive terminal of the lithium battery (6) is connected to the positive terminal of the voltage and current stabilizing module (3), and the negative terminal of the lithium battery (6) is connected to the negative terminal of the voltage and current stabilizing module (3); The positive terminal of the lithium battery (6) is connected to the positive terminal of the charging port (7), and the negative terminal of the lithium battery (6) is connected to the negative terminal of the charging port (7).

5. A universal measurement standard auxiliary device according to claim 4, characterized in that: A switch (5) is installed between the lithium battery (6) and the voltage and current stabilizing module (3).

6. A universal measurement standard auxiliary device according to claim 2, characterized in that: The resistance adjustment module comprises a plurality of resistors (8); one end of each resistor (8) is connected to one end of a COM common interface (9), and the other end of the COM common interface (9) passes through the induction coil of the resistivity sensor and is plugged into the other end of the resistor (8).

7. A universal measurement standard auxiliary device according to claim 6, characterized in that: The resistor (8) is a detachable resistor.

8. A universal measurement standard auxiliary device according to claim 6, characterized in that: The resistor (8) is a resistor with adjustable resistance.

9. The universal measurement standard auxiliary device according to claim 1, characterized in that: The interface of the conductivity sensor interface (1) is a three-core female interface.

10. A universal measurement standard auxiliary device according to claim 2, characterized in that: The voltmeter (2), the voltage and current stabilization module (3), and the ammeter (4) are all connected to a communication interface, and the communication interface is connected to a remote control terminal.

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