Portable P-type nuclear magnetic Exciter module test box and its use method

Abstract

The present invention relates to a portable P-type nuclear magnetic Exciter module test box, characterized in that it comprises a high-voltage signal simulation device, a MIRL-P-type nuclear magnetic electronic instrument, an Exciter module, a signal processing unit, an oscilloscope and a high-temperature connecting line. The portable P-type nuclear magnetic Exciter module test box of the present invention uses a high-voltage power supply signal simulation device to use 0-6VDC to simulate the high-voltage power supply input of 600VDC of the P-type nuclear magnetic, and couples and filters the drive signal output by the Exciter module through the output drive signal processing unit, and then realizes the Exciter module through a high-temperature extension wire. The structure of the test box is simplified, the test risk is reduced, and the test cost is saved. It has the advantages of small size, light weight, and easy to carry.

Description

Technical Field

[0001] The present invention relates to the technical field of Exciter module testing, and in particular to a portable P-type nuclear magnetic Exciter module testing box and a use method thereof. Background Art

[0002] The MRIL-P nuclear magnetic Exciter excitation module receives inputs from the DSP and the transmitter interface module. Based on these inputs and the readout high-voltage DC level, it generates two sets of transmission pulse control signals with controllable phase difference for the two transmitters, driving transmitter A and transmitter B respectively, and finally synthesizing the RF power output whose amplitude is controlled by this phase difference in the antenna interface, so that the RF pulse amplitude changes according to the DSP program. The performance of the Exciter determines the overall working state of the P-type nuclear magnetic. The existing test system needs to connect 600v high voltage and all high-voltage modules to let the system transmit under high-voltage environment for testing, which increases the risk and cost of the overall test. The whole instrument needs to be placed in an oven for high-temperature testing, which is complicated to operate. Summary of the invention

[0003] To this end, the present invention provides a portable P-type nuclear magnetic Exciter module test box and a method of using the same, so as to overcome the problems of the Exciter test system in the prior art, such as complex structure and high-voltage operation.

[0004] In one aspect, the present invention provides a portable P-type nuclear magnetic Exciter module test box, comprising:

[0005] A high voltage signal simulation device, used to simulate a high voltage signal;

[0006] A MIRL-P nuclear magnetic electron instrument, which is connected to the high-voltage signal simulation device and is used to receive the high-voltage signal simulated by the high-voltage signal simulation device;

[0007] An Exciter module, which is connected to the MIRL-P nuclear magnetic resonance electron instrument and is used to transmit a pulse control signal;

[0008] A signal processing unit connected to the Exciter module, for receiving and processing the pulse control signal output by the Exciter module;

[0009] an oscilloscope connected to the signal processing unit and used to display the waveform of the output filter and the shape and amplitude of the waveform;

[0010] High temperature connecting wires are respectively connected to designated components to enable the Exciter module to be tested at high temperature.

[0011] Furthermore, the high voltage power supply signal simulation device comprises:

[0012] Power source, which is a 9VDC dry cell battery;

[0013] A voltage regulator is connected to the power supply and is used to adjust the signal input of the high voltage power supply.

[0014] Furthermore, the voltage regulator uses a 5.2k sliding rheostat to adjust the output to 0-6VDC for use as a simulated 0-600VDC high voltage power signal input.

[0015] Furthermore, the MIRL-P type nuclear magnetic resonance electron instrument is provided with an HVSENS module, the input end of the HV SENS module is connected to the voltage regulator to receive the analog high voltage signal output by the voltage regulator, and the output end of the HV SENS module is connected to the Exciter module to output the analog high voltage signal to the Exciter module.

[0016] Furthermore, the signal processing unit includes:

[0017] The signal synthesis circuit has two 1:1 transformers inside, which are used to couple and superimpose the four pulse signals output by the Exciter module to obtain a synthetic square wave signal;

[0018] The signal filtering circuit is connected to the signal synthesis circuit and is used for filtering the one-way synthesis square wave signal output by the signal synthesis circuit, filtering out the high-frequency components in the one-way synthesis square wave signal to obtain a group of sinusoidal wave signals.

[0019] Furthermore, the signal filtering circuit is provided with two test points, including a Ground test point and an Output test point, each test point is connected to the oscilloscope respectively, so as to transmit the sinusoidal wave signal obtained after filtering by the signal filtering circuit to the oscilloscope.

[0020] Furthermore, the high temperature connecting line comprises:

[0021] A 9-core plug high-temperature connecting wire, both ends of which are connected to the Exciter module and the signal processing unit respectively, for transmitting the pulse control signal emitted by the Exciter module to the signal processing unit;

[0022] The 37-core plug high-temperature connecting line has two ends connected to the Exciter module and the MIRL-P nuclear magnetic resonance electron instrument respectively, so as to transmit the analog high-voltage signal output by the MIRL-P nuclear magnetic resonance electron instrument to the Exciter module.

[0023] Furthermore, the length of the 9-core plug high-temperature connecting wire and the 37-core plug high-temperature connecting wire are both 120 cm.

[0024] Furthermore, the test box is also provided with an oven for performing high temperature testing on the Exciter module.

[0025] On the other hand, the present invention provides a method for using a portable P-type nuclear magnetic Exciter module test box, comprising:

[0026] Step 1: Connect the output end of the high voltage signal simulation device to the input end of the HV SENS module in the MRIL-P nuclear magnetic resonance electronic instrument;

[0027] Step 2: Connect the upper end of the Exciter module to the output end of the HVSENS module in the MRIL-P nuclear magnetic resonance electronic instrument through a 37-pin plug high-temperature connecting line, and connect the lower end of the Exciter module to the signal synthesis circuit in the signal processing unit through a 9-pin plug high-temperature connecting line;

[0028] Step 3: Connect the oscilloscope to the Output test point and the Gound test point in the signal filtering circuit respectively;

[0029] Step 4: After the high-voltage signal simulation device supplies power to the MRIL-P nuclear magnetic resonance electronic instrument, manually adjust the voltage regulator so that HVMAX and HVMIN are displayed as 600VDC in the software window of the oscilloscope. After the adjustment is completed, continue to transmit the signal using the single-frequency mode, and adjust the transmission intensity AM to 110. Observe the shape and amplitude of the output waveform of the Exciter module through the oscilloscope;

[0030] Step 5: Start the oven and adjust the heating temperature to 175°C. Use an oscilloscope to observe the shape and amplitude of the waveform output by the Exciter module during the heating process.

[0031] Compared with the prior art, the invention has the beneficial effect that the portable P-type nuclear magnetic Exciter module test box of the invention uses a high-voltage power supply signal simulation device to use 0-6VDC to simulate the high-voltage power supply input of 600VDC of the P-type nuclear magnetic, and couples and filters the drive signal output by the Exciter module through the output drive signal processing unit, and then realizes the separate normal temperature and high temperature test of the Exciter module through the high-temperature extension wire. The structure of the test box is simplified, the test risk is reduced, and the test cost is saved. It has the advantages of small size, light weight, and easy to carry.

[0032] Furthermore, the high-voltage power signal simulation device uses a 9VDC dry battery as a power source and a sliding rheostat as a voltage regulator. The simulation of high voltage can be completed by using low-power components, thereby further saving the testing cost of the test box.

[0033] Furthermore, the signal processing unit first integrates the signal through the signal synthesis circuit, and then filters it through the signal filtering circuit, so as to obtain a clear square wave signal, thereby improving the detection efficiency of the test box.

[0034] Furthermore, the high temperature connecting wire includes a 9-core plug high temperature connecting wire and a 37-core plug high temperature connecting wire. By using connecting wires with different numbers of plug cores, signals can be transmitted to designated locations respectively, thereby improving the stability of the test box during operation.

[0035] Furthermore, the length of the high-temperature connecting line is 120 cm. By increasing the length of the high-temperature connecting line, the Exciter module can be more conveniently placed in the oven alone for high-temperature testing, thereby improving the testing efficiency of the test box.

[0036] Furthermore, an oven is provided in the test box, and the Exciter module is placed in the oven to heat the Exciter module separately, thereby reducing the test risk of the test box. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of the portable P-type nuclear magnetic Exciter module test box of the present invention. DETAILED DESCRIPTION

[0038] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0040] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0041] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] See also Figure 1 As shown, it is a schematic diagram of the structure of the portable P-type nuclear magnetic Exciter module test box of the present invention. It includes a high-voltage signal simulation device, a MIRL-P type nuclear magnetic electron instrument, an Exciter module, a signal processing unit, an oscilloscope and an oven. Among them, the MIRL-P type nuclear magnetic electron instrument is connected to the high-voltage signal simulation device to receive the analog voltage output by the high-voltage signal simulation device. The Exciter module is connected to the MIRL-P type nuclear magnetic electron instrument to receive the analog voltage output by the MIRL-P type nuclear magnetic electron instrument. The signal processing unit is connected to the Exciter module to process the signal output by the Exciter module. The oscilloscope is connected to the signal processing unit to display the signal processed by the signal processing unit on the screen. The Exciter module is arranged in the oven so that the oven heats the Exciter module separately.

[0043] When using the portable P-type nuclear magnetic Exciter module test box, adjust the high-voltage signal simulation device, and turn on the power after the adjustment is completed, so that the high-voltage signal simulation device transmits the simulated high-voltage signal to the MIRL-P type nuclear magnetic electronic instrument. After receiving the signal, the MIRL-P type nuclear magnetic electronic instrument will transmit the signal to the Exciter module. The Exciter module will transmit a pulse control signal to the signal processing unit according to the received voltage signal. The signal processing unit will process the signal after receiving the pulse control signal and send the processed signal to the oscilloscope. The oscilloscope will output the received signal on the screen for the user to observe. When performing a high-temperature test on the Exciter module, first place the Exciter module alone in the oven, and control the oven to heat the Exciter module to a specified temperature. At this time, the test box will repeat the above process, and the pulse signal output by the heated Exciter module will be converted and output on the screen of the oscilloscope.

[0044] Please refer to Figure 1As shown, the high-voltage signal simulation device of the present invention includes a power supply and a voltage regulator. The power supply is a 9VDC dry battery, which is connected to the voltage regulator to provide power input for the test box. The voltage regulator is a 5.2k sliding rheostat with an adjustable output of 0-6VDC, which is connected to the MIRL-P type nuclear magnetic electron instrument to output the high-voltage analog signal to the MIRL-P type nuclear magnetic electron instrument. When using the test box, first connect the power supply to the voltage regulator, and then connect the voltage regulator to the MIRL-P type nuclear magnetic electron instrument. After the power supply starts to supply power to the test box, adjust the voltage regulator to adjust the analog voltage signal to a specified voltage. It can be understood that the rated voltage of the power supply and the specific parameters of the regulator are not specifically limited in this embodiment, as long as the power supply can output an analog voltage signal of a specified voltage after being regulated by the voltage regulator.

[0045] Please continue reading Figure 1 As shown, the MIRL-P type nuclear magnetic resonance electron instrument of the present invention is provided with an HVSENS module, which is respectively connected to the voltage regulator and the Exciter module to transmit the analog voltage signal output by the voltage regulator to the Exciter module.

[0046] Please continue reading Figure 1 As shown, the Exciter module of the present invention is connected to the HV SENS module through a high-temperature connecting line, so that the Exciter module receives the high-voltage signal output by the HV SENS module. The Exciter module is also connected to the signal processing unit through a high-temperature connecting line, so as to output the pulse control signal output by the Exciter module to the signal processing unit.

[0047] Specifically, the upper end of the Exciter module is provided with a 37-core plug for connecting to the 37-core plug high-temperature connecting wire, and the lower end of the Exciter module is provided with a 9-core plug for connecting to the 9-core plug high-temperature connecting wire. The lengths of the 37-core plug high-temperature connecting wire and the 9-core plug high-temperature connecting wire are both 120 cm. It is understandable that the lengths of the 37-core plug high-temperature connecting wire and the 9-core plug high-temperature connecting wire are not specifically limited in this embodiment, as long as the lengths of the 37-core plug high-temperature connecting wire and the 9-core plug high-temperature connecting wire can enable the Exciter module to be placed in the oven alone.

[0048] Please continue reading Figure 1As shown, the signal processing unit of the present invention includes a signal synthesis circuit and a signal filtering circuit. The signal synthesis circuit is connected to the Exciter module through a 9-pin plug high-temperature connecting line to receive and synthesize the pulse control signal output by the Exciter module. The signal filtering circuit is connected to the signal synthesis circuit to filter the signal output synthesis circuit. When the signal processing unit receives the pulse control signal output by the Exciter module, the signal synthesis circuit couples and superimposes the multi-channel pulse signals output by the Exciter module to obtain a synthesized square wave signal, and outputs the synthesized square wave signal to the signal filtering circuit. The signal filtering circuit filters out the high-frequency components in the synthesized square wave signal to obtain a group of sinusoidal wave signals.

[0049] Specifically, the signal synthesis circuit includes two 1:1 transformers for coupling and superimposing the pulse signals output by the Exciter module. The signal filtering circuit is provided with a test point Ground and a test point Output, which are respectively connected to an oscilloscope to display the filtered sine wave signal on the screen of the oscilloscope.

[0050] Please continue reading Figure 1 As shown, the oven of the present invention is a heating box, which is used to provide a high temperature environment for the Exciter module. When the Exciter module is subjected to a high temperature test, the Exciter module is placed in the oven, and the heating temperature of the oven is adjusted to complete the independent heating of the Exciter module by the oven.

[0051] The method for using the portable P-type nuclear magnetic Exciter module test box of the present invention comprises the following steps:

[0052] Step 1: Connect the output end of the high voltage signal simulation device to the input end of the HV SENS module in the MRIL-P nuclear magnetic resonance electronic instrument;

[0053] Step 2: Connect the upper end of the Exciter module to the output end of the HVSENS module in the MRIL-P nuclear magnetic resonance electronic instrument through a 37-pin plug high-temperature connecting line, and connect the lower end of the Exciter module to the signal synthesis circuit in the signal processing unit through a 9-pin plug high-temperature connecting line;

[0054] Step 3: Connect the oscilloscope to the Output test point and the Gound test point in the signal filtering circuit respectively;

[0055] Step 4: After the high-voltage signal simulation device supplies power to the MRIL-P nuclear magnetic resonance electronic instrument, manually adjust the voltage regulator so that HVMAX and HVMIN are displayed as 600VDC in the software window of the oscilloscope. After the adjustment is completed, continue to transmit the signal using the single-frequency mode, and adjust the transmission intensity AM to 110. Observe the shape and amplitude of the output waveform of the Exciter module through the oscilloscope;

[0056] Step 5: Start the oven and adjust the heating temperature to 175°C. Use an oscilloscope to observe the shape and amplitude of the waveform output by the Exciter module during the heating process.

[0057] So 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 easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable P-type nuclear magnetic Exciter module test box, characterized in that: include: A high voltage signal simulation device, used to simulate a high voltage signal; A MIRL-P nuclear magnetic electron instrument, which is connected to the high-voltage signal simulation device and is used to receive the high-voltage signal simulated by the high-voltage signal simulation device; An Exciter module, which is connected to the MIRL-P nuclear magnetic resonance electron instrument and is used to transmit a pulse control signal; A signal processing unit connected to the Exciter module, for receiving and processing the pulse control signal output by the Exciter module; an oscilloscope connected to the signal processing unit and used to display the waveform of the output filter and the shape and amplitude of the waveform; High temperature connecting wires, which are respectively connected to designated components to enable the Exciter module to be tested at high temperature; The high voltage signal simulation device comprises: Power source, which is a 9VDC dry cell battery; A voltage regulator connected to the power supply to adjust the signal input of the high voltage power supply; The voltage regulator uses a 5.2k sliding rheostat, and the output is adjusted to 0-6VDC to serve as a simulated 0-600VDC high voltage power signal input; The signal processing unit comprises: The signal synthesis circuit has two 1:1 transformers inside, which are used to couple and superimpose the four pulse signals output by the Exciter module to obtain a synthetic square wave signal; A signal filtering circuit, connected to the signal synthesis circuit, for filtering the one-way synthesis square wave signal output by the signal synthesis circuit, filtering out the high-frequency components in the one-way synthesis square wave signal to obtain a group of sinusoidal wave signals; The high temperature connection line includes: a 9-core plug high temperature connection line, both ends of which are respectively connected to the Exciter module and the signal processing unit, so as to transmit the pulse control signal emitted by the Exciter module to the signal processing unit; A 37-core plug high-temperature connecting wire, both ends of which are connected to the Exciter module and the MIRL-P nuclear magnetic resonance electronic instrument respectively, for transmitting the analog high-voltage signal output by the MIRL-P nuclear magnetic resonance electronic instrument to the Exciter module; The length of the 9-core plug high-temperature connecting wire and the 37-core plug high-temperature connecting wire are both 120 cm; The method for using the portable P-type nuclear magnetic Exciter module test box includes: Step 1: Connect the output end of the high voltage signal simulation device to the input end of the HV SENS module in the MRIL-P nuclear magnetic resonance electronic instrument; Step 2: Connect the upper end of the Exciter module to the output end of the HVSENS module in the MRIL-P nuclear magnetic resonance electronic instrument through a 37-pin plug high-temperature connecting line, and connect the lower end of the Exciter module to the signal synthesis circuit in the signal processing unit through a 9-pin plug high-temperature connecting line; Step 3: Connect the oscilloscope to the Output test point and the Gound test point in the signal filtering circuit respectively; Step 4: After the high-voltage signal simulation device supplies power to the MRIL-P nuclear magnetic resonance electronic instrument, manually adjust the voltage regulator so that HVMAX and HVMIN are displayed as 600VDC in the software window of the oscilloscope. After the adjustment is completed, continue to transmit the signal using the single-frequency mode, and adjust the transmission intensity AM to 110. Observe the shape and amplitude of the output waveform of the Exciter module through the oscilloscope; Step 5: Start the oven and adjust the heating temperature to 175°C. Use an oscilloscope to observe the shape and amplitude of the waveform output by the Exciter module during the heating process.

2. The portable P-type nuclear magnetic Exciter module test box according to claim 1, characterized in that: The MIRL-P type nuclear magnetic resonance electronic instrument is provided with an HV SENS module, the input end of the HVSENS module is connected to the voltage regulator to receive the analog high voltage signal output by the voltage regulator, and the output end of the HVSENS module is connected to the Exciter module to output the analog high voltage signal to the Exciter module.

3. The portable P-type nuclear magnetic Exciter module test box according to claim 1, characterized in that: The signal filtering circuit is provided with two test points, including a Ground test point and an Output test point, each of which is connected to the oscilloscope to transmit the sine wave signal obtained after filtering by the signal filtering circuit to the oscilloscope.

4. The portable P-type nuclear magnetic Exciter module test box according to claim 1, characterized in that: The test box is also provided with an oven for performing high temperature testing on the Exciter module.

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