34 results about "Pc controller" patented technology

The utility model discloses a semi-automatic straight pipe double-end spot welding machine, which relates to the technical field of spot welding machines and comprises a base, and a left terminal piece feeding mechanism and a right terminal piece feeding mechanism are arranged on two sides of the top of the base. A fixing piece direction rotating mechanism, a spot welding mechanism, a clamping mechanism, a two-color buzzer, a PLC microcomputer controller and a discharging mechanism are arranged in the center of the top of the base. According to the double-end spot welding machine, the servo motor power transmission component, the up-down air cylinder, the push-out air cylinder, the parallel opening and closing finger air cylinder, the fixed piece direction rotating component and the like are integrated, and automatic operation of a series of steps including heating pipe feeding, clamping, transferring, rotary centering, terminal piece processing, pushing, welding and the like is achieved. Compared with the prior art, manual participation links are greatly reduced, the requirement for the technical level of operators is lowered, basic operation can be conducted without technicians or operators, the range of the operators is expanded, and the training cost and the time cost are reduced.

The invention discloses a multi-dimensional optical fusion defect detection identification instrument which comprises a rack, a moving mechanism is arranged in the rack, a plurality of detection placing discs are arranged on the moving mechanism, a rotary power mechanism is transversely arranged on the side of the rack, and the detection placing discs are connected with the rotary power mechanism in a matched mode; the n-shaped frame is installed at the top of the rack, a linear motor is installed at the top of the n-shaped frame, a multispectral lighting module is installed on an output shaft of the linear motor, a rotary filter wheel is installed on the multispectral lighting module in a matched mode, a computer controller is arranged at the top of the n-shaped frame, and the multispectral lighting module and the rotary filter wheel are both connected with the computer controller. The moving mechanism comprises two conveying shafts. According to the device, through cooperation of an asymmetric filter wheel framework, multi-dimensional optical fusion defect detection and recognition and a bevel gear clutch rotating mechanism, the efficiency and precision of object defect detection and recognition are improved, and the false detection rate is reduced.

The utility model provides a force sensor verification and calibration device convenient to adjust, which relates to the field of force sensor verification and calibration equipment, and comprises a calibration table, a base, a top plate positioned above the base, and a support column and a calibration assembly positioned between the base and the top plate, comprising a PC controller, a servo air cylinder fixed to the top of the top plate and a loading actuator fixed to the output end of the servo air cylinder. According to the utility model, the position and angle of the multi-dimensional force sensor to be calibrated can be adjusted in the horizontal and vertical directions through the transverse moving assembly and the overturning assembly, the force sensor can be calibrated from multiple dimensions, various stress conditions of the force sensor in actual use can be simulated, the measurement accuracy of the sensor under different working conditions can be ensured, and the measurement precision of the sensor can be improved. A ball screw, a ball nut, a first motor and a speed reducer of the transverse moving assembly work cooperatively, horizontal movement of a supporting plate can be achieved, and the horizontal position of the sensor to be calibrated can be adjusted conveniently.

The utility model relates to the field of injection molding machine control, and discloses a safety control system of an injection molding machine, when a safety PLC (4) controls an on-off device (8) to cut off voltage VCC, a power supply end (6) loses power, so that all signal output ends (7) in a signal output module (5) stop outputting control signals, corresponding action valves (1) stop running, and the safety of the injection molding machine is ensured. Compared with the prior art that a signal loop between each action valve (1) and the computer controller (3) is directly cut off, the safety PLC (4) only needs to plan a safety contact (10) for each signal output module (5), and then the power supply of the signal output module (5) is cut off through the safety contact (10), so that the safety control system of the injection molding machine can be used for controlling the operation of the injection molding machine. Therefore, the purpose of safety protection is achieved. Therefore, the occupation amount of the safety contacts (10) of the safety PLC (4) can be effectively reduced, so that the use number of the expansion modules (9) is reduced, the circuit can be simplified, the occupation amount in the injection molding machine control cabinet can be reduced, the installation cost can be reduced, and the injection molding machine control cabinet is more humanized.

A home energy system includes a distribution assembly with a power bus coupled to interfaces for a utility grid, home loads, distributed energy resources (DERs), and an electric vehicle (EV). Measurement circuitry obtains electrical parameters at the interfaces, and a power control system (PCS) controller monitors an aggregate parameter relative to a capacity constraint of the distribution assembly. When the aggregate exceeds the constraint, the PCS controller commands the DER or EV to reduce active power exchange. If the condition persists for an interval, the PCS controller actuates a relay switch to electrically isolate the DER or EV.

The application specifically provides a notebook computer lid-closing carrying device, a lid-closing carrying method and a processing equipment, wherein the end effector of the device comprises a carrying member and a lid-closing member; the driving end of a first linear driver is connected with the end effector to drive the end effector to move in a first direction; the driving end of a second linear driver is connected with the first linear driver to drive the first linear driver to move in a second direction; a controller is electrically connected with the first linear driver and the second linear driver respectively; in a carrying mode, the controller controls the driving end of the first linear driver to move once and controls the driving end of the second linear driver to move once to carry a target computer through the carrying member; in a lid-closing mode, the controller controls the driving end of the first linear driver and the driving end of the second linear driver to move alternately for multiple times to close the lid of the target computer through the lid-closing member. The application effectively reduces the volume and improves the efficiency.

The invention relates to the field of medical balloon machines, in particular to a PC-controlled novel medical balloon machine which comprises a machine body. A PC controller is arranged above the machine body; a miniature high-voltage intelligent quick clamp is arranged on one side of the upper end of the machine body; a forming assembly is arranged at the working end of the micro high-voltage intelligent quick clamp; and a material clamping assembly is arranged on the other side of the forming assembly. The air pipe forming machine has the beneficial effects that the PC controller, the miniature high-pressure intelligent rapid clamp, the forming assembly and the clamping assembly are arranged on the machine body, the miniature high-pressure intelligent rapid clamp can rapidly lock an air pipe, the other side of the air pipe is clamped through the clamping assembly, the air pipe is heated and formed through the forming assembly and then cooled, and the air pipe forming efficiency is improved. Therefore, the automatic, digital and intelligent level of balloon production is effectively improved, the occupation of human resources is reduced, the breakage rate in the balloon demolding process is reduced, the product quality is improved, the technological process of balloon production is optimized, and the production efficiency is improved.

The invention discloses a high-temperature-resistant and shock-resistant automobile computer controller assembly. The high-temperature-resistant and shock-resistant automobile computer controller assembly comprises a suspension part, a holding seat, a positioning part and a bearing part. A hinge rod body is arranged on the positioning piece, a hinge arc body matched with the hinge rod body is arranged on the bearing piece, the lower end of the automobile computer controller is firstly arranged on the bearing piece, the hinge arc body on the bearing piece is kept to rotate around the hinge rod body, and then the upper end of the automobile computer controller is arranged at the lower end of the pressure applying arm. The position of the automobile computer controller is limited through cooperation of the pressure applying arm and the bearing piece. According to the high-temperature-resistant and shock-resistant automobile computer controller assembly, the bearing piece with the adjustable angle is arranged for supporting, elastic buffering of an automobile computer controller can be achieved, and vibration brought in the automobile running process is reduced. In addition, the height difference between the bearing part and the pressure applying arm can be adjusted in cooperation with the positioning part, the automobile computer controllers of different sizes can be adapted, and the overall practicability and the disassembly and assembly efficiency of the automobile computer controllers are improved.

The utility model relates to the technical field of dimming film production, and discloses a film laminating machine for dimming film production, which comprises a film laminating machine body, a base and a detection mechanism, the base is fixedly arranged at the bottom end of the film laminating machine body, the detection mechanism is fixedly arranged at the top end of the base, and an auxiliary mechanism is fixedly arranged at the upper end of the detection mechanism; the detection mechanism comprises mounting rods, a first gear motor, a conveying belt, a U-shaped plate, an industrial camera, a light supplementing lamp, an image acquisition card, a PC controller and a supporting rod, the mounting rods are fixedly arranged on the two sides of the top end of the base, and the first gear motor is fixedly arranged on one side of each mounting rod; and the output shaft end of the gear motor I penetrates through the mounting rod and is fixedly provided with a conveyor belt. According to the film laminating machine for producing the light adjusting film, by arranging the detection mechanism, quality detection can be conveniently conducted on the produced light adjusting film, defective products with scratches and bubbles can be conveniently removed in time, the product quality is guaranteed, the working efficiency is improved, and the practicability is improved.

The temperature-controllable double-pipe heat exchanger comprises a heat exchange shell, a shell cover is fixedly arranged on the outer side of the heat exchange shell, a supporting frame is fixedly installed on the outer side of the heat exchange shell, and a computer controller is installed on the top of the supporting frame; the outer pipe is fixedly arranged in the heat exchange shell, the outer pipe is arranged in a curved mode, the inner pipe is fixedly arranged in the outer pipe, an annular space is formed between the inner pipe and the outer pipe, the inner pipe and the outer pipe are divided into a plurality of short sections and a plurality of long sections, and a plurality of flow control mechanisms are fixedly installed at the short sections of the outer side of the inner pipe. The device realizes + / -0.5 DEG C level temperature regulation through linkage of a partition flow control mechanism and a temperature sensing head, and is combined with a microcapsule composite material with a phase change structure to buffer sudden change temperature and improve response speed, and staggered spiral diversion trenches force fluid to reverse vortex, so that a turbulent flow heat transfer coefficient is improved, and scaling is remarkably inhibited; the curved outer pipe prolongs contact time, and heat exchange efficiency is improved compared with that of a straight pipe.

The invention discloses a flow battery PCS dynamic intelligent rotation control method and device, and belongs to the technical field of flow batteries, and the control method comprises the following steps: S1, multi-parameter real-time monitoring and fusion; s2, dynamic allocation and execution; and S3, fault tolerance and self-healing. The device comprises a sensor network, an edge computing unit and a PCS controller, wherein the sensor network, the edge computing unit and the PCS controller are connected in sequence. According to the dynamic intelligent alternating control method, load balancing and efficiency optimal distribution of multiple groups of PCS units are realized, the calling strategy of the PCS is optimized, the problem that the difference between long-time shutdown of equipment and long-time operation of the equipment is too large due to a traditional mode is solved, the service life of the whole equipment is prolonged, and the service life of the whole equipment is prolonged. The system design can be applied to a large-scale energy storage power station and is beneficial to equipment of the whole station.

The invention belongs to the technical field of stage lamp color calibration, particularly relates to a stage lamp color calibration device and method, and aims to solve the problems that during traditional stage lamp calibration, the manual operation efficiency is low, the measurement error is large due to ambient light interference, and LED lamps with different sizes and currents are difficult to quickly adapt. According to the technical scheme, the calibration device comprises a working plate, four supporting legs are fixedly installed at the bottom of the working plate, a computer controller is arranged at the top of the working plate, a wavelength collection sensor is connected to the computer controller, and the calibration device further comprises a height adjusting mechanism installed at the top of the working plate and used for adjusting the height of the working plate. And the wavelength acquisition sensor is mounted on the height adjusting mechanism. Assembly line work is achieved through the rotating mechanism, action of the clamping conductive mechanism is automatically controlled through the position trigger switch, accurate detection is completed in a darkroom environment created by the height adjusting mechanism, and the whole process is automatic, efficient and reliable.

The utility model provides a kind of juicer cleaning device, it is related to juicer cleaning field.The juicer cleaning device, including positioning rotary concave ball, extrusion rotary convex ball, dreg device, slitting cutter, nozzle device.The juicer cleaning device, by water pump and steam generator receive computer controller instruction, first independently start water pump work, water pump and steam generator are compressed by pipeline suction water in water tank and pressurize, positioning rotary concave ball and extrusion rotary convex ball are rotated synchronously, water flow generated by water pump and steam generator is delivered to nozzle and nozzle device by steam pipeline, positioning rotary concave ball, extrusion rotary convex ball and slitting cutter being rotated are continuously sprayed and washed, in the next instruction of computer controller, water pump and steam generator start to make steam, high-temperature steam is delivered to nozzle and nozzle device by steam pipeline, positioning rotary concave ball, extrusion rotary convex ball and slitting cutter being rotated are steam jet sterilized.

The utility model relates to the technical field of food processing, in particular to a water circulation cooling system which comprises a cooling sleeve, the cooling sleeve is sleeved on the outer side of the rear section of an auger conveying pipe and is of a double-layer hollow structure, an inner pipe of the cooling sleeve is attached to the auger conveying pipe, and a supporting column and the inner pipe are both made of heat conduction materials, so that the heat transfer efficiency is improved, and the service life of the auger conveying pipe is prolonged. The outer pipe is provided with a water inlet and a water outlet, a cooling cavity is arranged between the inner pipe and the outer pipe, the cooling cavity is externally connected with a water circulating device, and the water circulating device comprises a cooling water tank. The temperature rising water in the cooling cavity is cooled by the radiator and flows back to the cooling water tank, so that the continuous cooling cycle work is carried out.

The utility model discloses a concrete cooling circulating water flow direction intelligent control circulating system which comprises a water tank, a water pipe, a water pump, two water temperature sensors, four electromagnetic valves and a microcomputer controller. The two water temperature sensors are positioned in the mass concrete structure to be cooled and are respectively close to the two concrete cooling water inlets and outlets; the two sections of water pipes between the water tank and the mass concrete structure to be cooled are respectively a water supply pipe and a water return pipe, a water pump and an electromagnetic valve are arranged on the water supply pipe, an electromagnetic valve is arranged on the water return pipe, crossed pipelines are arranged between the water supply pipe and the water return pipe, and electromagnetic valves are respectively arranged on the crossed pipelines. The cooling circulation water flow direction can be automatically changed, the concrete structure is cooled in a balanced mode, various defects caused by the fact that the water flow direction is changed through manual operation are overcome, and the overall cooling work efficiency is greatly improved.

The invention discloses an automobile part batch injection device and method. The automobile part batch injection device comprises a machine shell, the top of the machine shell is provided with a computer controller and four stand columns, the tops of the four stand columns are provided with the same top plate, the top of the top plate is provided with a screw injection machine, and the screw injection machine is connected with an injection bent pipe; the movable mold mechanism is arranged at the top of the machine shell; the fixed mold mechanism is installed at the bottom of the top plate and located over the movable mold mechanism, the fixed mold mechanism comprises a fixed mold shell, a plurality of shock absorbers are installed at the top of the fixed mold shell and fixedly installed at the bottom of the top plate, a fixed mold base is fixedly installed at the bottom of the fixed mold shell, and a plurality of mold cavities are formed in the bottom of the fixed mold base; the number of the model cavities is six, and the model cavities are annularly arranged. According to the device, through triple innovation of phase change energy storage heat energy circulation, electromagnetic induction precise temperature control and magneto-rheological multi-mold-cavity cooperation, the energy utilization and regulation logic of a traditional injection device is reconstructed.

The invention relates to the technical field of energy storage, and provides an insulation detection method and circuit of an energy storage converter, an energy storage system and electric equipment, and the method comprises the steps: controlling a control interface of a controller to output a target level; after a first preset time, obtaining a first test voltage of the positive bus and a second test voltage of the negative bus; after a second preset time, acquiring a third test voltage of the positive bus and a fourth test voltage of the negative bus; according to the first test voltage, the second test voltage, the third test voltage and the fourth test voltage, whether insulation abnormity exists in the energy storage system is determined; wherein the first preset time is the preset voltage stabilization delay time, and the second preset time is the sum of the delay time of the first delay circuit and the preset voltage stabilization delay time. The use of pins of the PCS controller can be reduced at least while stable impedance detection of the energy storage converter is ensured.

The invention provides an offshore wind power jacket foundation grouting connection section bearing performance test device and method, and the method comprises the steps: controlling a movable cross beam to carry out preloading through a PC controller, observing the difference value of the strain on the symmetric surface of a grouting connection section model, guaranteeing that the test loading does not have the eccentric problem, and carrying out the testing of the bearing performance of the grouting connection section model; observing whether the loading condition of the testing machine is normal or not and whether the data change of resistance strain gauges at all measuring points of the grouting connection section model is normal or not; after all conditions are ensured to be normal, the PC controller controls the movable cross beam to carry out formal loading until the grouting connection section model is damaged; and exporting the strain change data of each measuring point in the test process from the data acquisition computer, and analyzing the stress condition of each measuring point in the formal loading process. Through the method, the strain of a plurality of measuring points can be measured at the same time, the grouting thickness of the grouting connection section model or the diameter and the wall thickness of a steel pipe are changed, and bearing performance tests can be carried out on grouting connection section models of different sizes.

Disclosed in the present invention is an energy-saving power supply regulation system. An integrated sensor is used to collect in real time a plurality of environmental parameters and transmit same to a PC controller. The PC controller is provided with a BP neural network controller. On the basis of the power supply voltage amplitude, a PFC circuit uses a first full-bridge topology circuit to perform PWM closed-loop feedback regulation, so as to convert an alternating current into a direct current and inputs same to a DC-AC circuit. On the basis of the power supply voltage amplitude and power supply voltage frequency, the DC-AC circuit uses a second full-bridge topology circuit to input a plurality of PWM signals so as to convert the direct current into an alternating current, and uses a plurality of filter inductors to convert the alternating current into a sinusoidal alternating current; and a load terminal receives the sinusoidal alternating current. A plurality of switch transistors utilized in the two full-bridge topology circuits are all of a SiC Mosfet type. The present invention establishes a direct correlation between actual parameters affecting power supply outputs and the power supply voltage amplitudes and frequencies, thus enabling real-time regulation on the basis of actual conditions to achieve energy-saving effects, and the present invention uses SiC Mosfets to substantially increase the inverter frequency, thereby also improving energy efficiency.

The invention discloses an energy storage battery pack heating system, method and device, and relates to the technical field of energy storage battery temperature control, the system comprises a BMS controller, a PCS controller and an energy storage battery module, the energy storage battery module comprises a plurality of battery packs, and each battery pack is internally provided with a heating module; the voltage output end of the energy storage battery module is connected with the power supply end of the BMS controller through a DCDC power supply module, the battery packs are connected through relay driving modules which are connected in series, and the control ends of the BMS controller and the PCS controller are connected with the heating modules respectively; wherein the BMS controller controls the heating modules to heat in a BMS mode by sending a first instruction, the PCS controller controls the heating modules to heat in a PCS mode by sending a second instruction, the two modes can operate independently or cooperatively, and the control ends of the BMS controller and the PCS controller are connected with the heating modules respectively, so that the multi-mode flexible switching heating mode can be realized; therefore, the heating efficiency in a low-temperature environment is improved.

The application discloses an energy-saving power supply adjusting system, which adopts integrated sensors to collect multiple environmental parameters in real time and transmit the parameters to a PC controller; the PC controller is provided with a BP neural network controller; a PFC circuit converts alternating current into direct current input into a DC-AC circuit by PWM closed-loop feedback adjustment based on the power supply voltage amplitude by using a first full-bridge topology circuit; the DC-AC circuit converts the direct current into alternating current by inputting multiple PWM signals into a second full-bridge topology circuit based on the power supply voltage amplitude and the power supply voltage frequency, converts the alternating current into sinusoidal alternating current by using multiple filter inductors, and receives the sinusoidal alternating current at a load end; the multiple switch tubes used in the two full-bridge topology circuits are all SiC Mosfets. The application directly links the actual parameters affecting the power supply output with the power supply voltage amplitude and frequency, thereby adjusting in real time according to the actual situation, achieving the energy-saving effect, and greatly improving the inverter frequency by using SiC Mosfets, which also effectively saves energy.

The utility model discloses an interlocking start-stop hazardous chemical substance production plant side wall exhaust fan, which relates to the technical field of fire prevention and explosion prevention in petrochemical industry production, and comprises a hazardous chemical substance plant, a hazardous chemical substance production device, a fixed gas detector, a side wall exhaust fan, a central control computer and a PLC (programmable logic controller), a fixed gas detector is mounted at a hazardous chemical substance production device in the hazardous chemical substance plant, a side wall exhaust fan is arranged on the wall of the hazardous chemical substance plant, and the start and stop of the side wall exhaust fan are controlled in an interlocking manner through a PLC (Programmable Logic Controller), the fixed gas detector and a central control computer. The system has the characteristics of real-time monitoring and early warning and automatic start and stop, and is used for solving the problems that the power consumption is too high when the exhaust fan runs for a long time, the material accessories and loss of the fan are high, the side wall exhaust fan is started when the side wall exhaust fan intermittently runs under the condition that the concentration of combustible or poisonous steam in a plant is high, and the risk that an operator enters the plant to start the side wall exhaust fan is large.

The utility model provides a full-automatic component analysis system, which belongs to the technical field of detection equipment and comprises two parallel Y-axis guide rails, an X-axis guide rail, a Z-axis guide rail, a connecting piece, component detection equipment, an X-axis electric drive, a Y-axis electric drive, a Z-axis electric drive, a power supply control box and a computer controller. According to the utility model, full-automatic substance composition detection analysis is realized, batch and multi-point sample testing of multiple columns, multiple rows, oblique points, scattered points and the like can be carried out, and the functions of automatic testing of large-batch samples and data integration display are realized; the detection efficiency is improved, the labor cost is reduced, and personal errors are avoided. The connecting piece is in sliding connection with the component detection equipment in the vertical direction, the distance between the component detection equipment and a sample to be detected can be automatically and finely adjusted during detection, the buffering effect is achieved, the situation that a probe is damaged due to the fact that the upper surface of the sample to be detected makes contact with the component detection equipment is avoided, and the component detection equipment is well protected.

The utility model discloses a UV (ultraviolet) flatbed printer, which belongs to the field of printer equipment, and is characterized by comprising a rack, a computer, a PLC (programmable logic controller), a first driving component arranged on the rack, a second driving component arranged on the first driving component and perpendicular to the first driving component, and a printing head arranged on the second driving component, the printing device further comprises a conveying assembly arranged on the rack and located below the printing head and a camera arranged at any end, in the extending direction of the second driving assembly, of the printing head, the extending direction of the conveying assembly is consistent with the extending direction of the first driving assembly, and the conveying assembly is used for conveying a printing piece. And the printed piece is identified and printed according to the condition of the fed printed piece through intelligent scanning, and then the printed piece is discharged, so that the working efficiency is improved.

1. Name of the product in this design: PC Handle. 2. Purpose of this design: For use in PC gamepads. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention relates to a self-adaptive multi-protocol engine controller upper computer flashing system which comprises an industrial personal computer, a controller power supply platform, a Peak hardware platform and a code scanning gun. The industrial personal computer is respectively coupled with the controller power supply platform, the Peak hardware platform and the code scanning gun through electric signals; engine controller upper computer flashing software is built in the industrial personal computer; and the engine controller upper computer flashing software is used for receiving controller hardware information input by the code scanning gun, controlling the controller power supply platform to supply power to the engine controller, connecting with the controller through the Peak hardware platform, and carrying out communication and calibration flashing operation. The invention further relates to a method using the adaptive multi-protocol engine controller upper computer flashing system. According to the invention, the defect that the existing controller upper computer tool and equipment can only support a single controller product is overcome, one upper computer tool and equipment are compatible with and support a plurality of controller products with different protocols, and the requirements of calibration and flashing of the controller are met.

The application discloses a high-voltage cascade direct-hanging energy storage system energy storage stack hard point state detection method and device, electronic equipment and a storage medium. The method is applied to a detection system. The method comprises the following steps: detecting the level state of an optoelectrical interface through a programmable chip; the programmable chip controls the output state of the opening amount of a detection board according to a preset logic, and simultaneously encodes the level state of the optoelectrical interface and converts the encoded level state into an optical signal through an optical transmitter, and then transmits the optical signal to a PCS controller through an optical fiber to determine the hard point state of the energy storage stack. Through the application, the high potential of the energy storage stack hard point is isolated from the low potential of the PCS controller, and the hard point states of several energy storage stacks can be detected simultaneously.

The present application provides a kind of electromagnetic pulse loaded rock multiple saturation shear device and method, by computer controller control electromagnetic induction system realizes high frequency electromagnetic pulse loading and unloading, can simulate the super low friction effect or high pressure water gas oil mixture superposition super low friction effect of structural plane under the load of earthquake or blasting (impact load) of high ground stress.Structure can be realized single rock sample multiple repeated shear by a set of adjustable pressure box device, and the test of rock sample dispersion is carried out.Loading end is composed of multiple loading heads, when high frequency electromagnetic pulse loading and unloading is carried out in horizontal direction, the shear failure of rock sample indefinite structural plane can be realized.High pressure reactor transparent visual side is equipped with high-speed photography DIC system, and the shear process structural plane damage real-time dynamic monitoring can be carried out.Rock-like material can be prepared by adding magnetic material, and rock-like test piece can be made, when surrounding electromagnetic pulse high frequency low amplitude loading is carried out, the test piece is subjected to the body force generated by surrounding magnetic field, and the saturation loading of rock sample is realized.