1182 results about "Pressure range" patented technology

The invention provides a method and a system for controlling a stable grasping force threshold value of a vibration manipulator for a camellia oleifera tree and the manipulator, and relates to the field of technical mechanical engineering and automatic control. The stable grasping force threshold value of the vibration manipulator for the camellia oleifera tree is obtained by obtaining a surface friction coefficient of the camellia oleifera tree, determining a damage threshold value, measuring a claw finger opening angle and clamping pressure when the manipulator works, and determining a clamping pressure range; the maximum pressure, the minimum pressure and the equivalent pressure are calculated, the clamping pressure of the mechanical arm is adjusted, the natural frequency and the maximum dynamic displacement response of the mechanical arm claw fingers are obtained, the claw finger opening angle and calculation data are adjusted based on the natural frequency and the maximum dynamic displacement response, and it is ensured that the grabbing force index is smaller than the damage threshold value through iterative adjustment. Mechanical simulation and actual measurement data are comprehensively utilized, through feedback adjustment and fine control, the problems of mechanical arm abrasion and low efficiency caused by excessive pressure and load in the prior art are successfully solved, the service life of the mechanical arm is prolonged, and the production efficiency of the mechanical arm is improved.

The invention relates to a circuit breaker and a switching-on and switching-off operation power adjusting method thereof. The circuit breaker comprises a main crank arm, an opening chain, a closing lock catch device and a spring operating mechanism. The main crank arm is connected with the opening chain, and the closing lock catch device is in unlocking connection with the main crank arm. The spring operating mechanism comprises an energy storage spring, an operating power adjusting mechanism and a pressure sensor, the energy storage spring is compressed under the traction of the opening chain, and when the main crank arm is in an unlocking state, the energy storage spring can rebound and pull the opening chain so as to drive the output shaft to rotate to a theoretical opening position. The pressure sensor is connected with the energy storage spring and used for monitoring the pressure value of the energy storage spring in real time, and the operation work adjusting mechanism is connected with the energy storage spring and used for adjusting the pressure value of the energy storage spring. The operating power adjusting mechanism of the circuit breaker can timely adjust the compression amount of the energy storage spring according to the pressure value, so that the energy storage spring can be always maintained within the preset pressure range, and the opening and closing phase selection precision of the circuit breaker is improved.

Systems and methods for monitoring a bypass device for protecting an intestinal anastomosis are provided. The system includes a pump, one or more fluid inlet lines fluidicly coupled to the pump and to a negative pressure chamber of the bypass device, and one or more sensors configured to measure data indicative of pressure within the negative pressure chamber. A controller operatively coupled to the pump and the one or more sensors may be programmed to actuate the pump to generate a vacuum within the negative pressure chamber to thereby pull intestinal tissue towards the bypass device to anchor the bypass device at a target location upstream of the intestinal anastomosis. The controller further may compare the pressure within the negative pressure chamber with a predetermined pressure range and, if the pressure falls outside the predetermined pressure range, adjust the pump to maintain the vacuum within the predetermined pressure range.

Systems and methods for monitoring a bypass device for protecting an intestinal anastomosis are provided. The system includes a pump, one or more fluid inlet lines fluidicly coupled to the pump and to a negative pressure chamber of the bypass device, and one or more sensors configured to measure data indicative of pressure within the negative pressure chamber. A controller operatively coupled to the pump and the one or more sensors may be programmed to actuate the pump to generate a vacuum within the negative pressure chamber to thereby pull intestinal tissue towards the bypass device to anchor the bypass device at a target location upstream of the intestinal anastomosis. The controller further may compare the pressure within the negative pressure chamber with a predetermined pressure range and, if the pressure falls outside the predetermined pressure range, adjust the pump to maintain the vacuum within the predetermined pressure range.

Systems and methods for monitoring a bypass device for protecting an intestinal anastomosis are provided. The system includes a pump, one or more fluid inlet lines fluidicly coupled to the pump and to a negative pressure chamber of the bypass device, and one or more sensors configured to measure data indicative of pressure within the negative pressure chamber. A controller operatively coupled to the pump and the one or more sensors may be programmed to actuate the pump to generate a vacuum within the negative pressure chamber to thereby pull intestinal tissue towards the bypass device to anchor the bypass device at a target location upstream of the intestinal anastomosis. The controller further may compare the pressure within the negative pressure chamber with a predetermined pressure range and, if the pressure falls outside the predetermined pressure range, adjust the pump to maintain the vacuum within the predetermined pressure range.

To provide a painting robot capable of reducing the effects of pressure fluctuations and ensuring a pressure range in which a pneumatic control valve can operate.SOLUTION: A painting robot 10 comprises: a painting head unit 50 including a plurality of nozzles 54 which eject droplets, and a painting head 53 having a piezoelectric substrate 62 for ejecting the droplets from the nozzles 54; a robot arm R1 for moving the painting head unit 50 to a desired position; and a paint supply mechanism 70 provided spanning the robot arm R1 and the painting head unit 50. Further, the paint supply mechanism 70 includes: a paint supply channel 72 for supplying a paint toward the painting head 53; a return flow channel 73 for recovering the paint that was not discharged from the nozzles 54; an air-operated paint regulator (AOPR) 92 provided in the paint supply channel 72 and capable of adjusting a valve opening degree in response to a controlled air pressure; and an orifice 96 provided on the downstream side of the paint supply channel 72 which is closer to the painting head side 53 than the AOPR 92.SELECTED DRAWING: Figure 7

The invention relates to the technical field of state monitoring, in particular to an energy-saving air compressor running state monitoring system and method, and the system comprises a pressure slope analysis module, a deviation trend judgment module, an error fitting acquisition module, an error trend analysis module and an alarm triggering module. According to the method, a pressure range is calculated by dividing time slices, a slope ratio is generated, a dynamic threshold algorithm is combined to successively compare and capture an offset trend, frequency and current waveform data are synchronously acquired to match a timestamp to calculate a difference value, an error vector is generated in a standardized manner, and a periodic mean value is extracted to verify an incremental relationship to identify progressive anomaly. The cross validation slope ratio and error vector positioning wear or coordination abnormity, the dynamic threshold value is adjusted along with the mean value coefficient at the initial period to reduce fluctuation interference, the timestamp matching enhances the composite fault detection capability, and the range division operation quantifies the matching degree to provide an energy efficiency optimization basis. And a standardized error vector and mean value incremental mechanism improves the prediction precision and reduces false alarm and missing alarm.

The invention discloses a reinforcing method for long-term automatic grouting repair of fractured rock mass.The reinforcing method comprises the steps that a pressure sensor is arranged at the tail end of a grouting opening, and data of the pressure sensor are obtained through an intelligent control system; when the intelligent control system monitors that pressure difference is generated due to pressure unbalance caused by surrounding rock fracture development, the intelligent control system sets grouting parameters and starts a grouting program; in the grouting process, pressure balance between equipment and surrounding rock is maintained through a pressure adjusting module, and it is ensured that grout is stably conveyed within the set pressure range all the time in the conveying process after a grouting program is started; grouting pressure and flow are controlled in the grouting process; in the grouting process, the bacterial liquid and the cementing liquid are input in a separated conveying and on-site gathering mode; and accumulated liquid in the pipeline is rapidly removed after grouting is finished. By adopting the method, cracks can be continuously monitored and periodically repaired, and the manual intervention requirement is reduced. The modular design is convenient for maintenance and replacement of equipment, and the maintenance cost is reduced.

The invention provides a dust collection base station, a dust cup, a cleaning device and a dust collection method, and belongs to the field of cleaning devices. The dust collection base station comprises a base station body and an uncovering structure, a containing groove is formed in the end of the base station body, the uncovering structure is located on the side wall of the containing groove, and the uncovering structure is configured to trigger a dust discharging cover of a dust cup to be unlocked if air pressure in the containing groove is within a preset negative pressure range. Due to the fact that the air pressure in the containing groove is within the preset negative pressure range during unlocking, the air pressure difference between the interior of the dust cup and the interior of the containing groove is within the acceptable range, and impact generated when the dust discharging cover is opened under the action of the air pressure difference between the two sides is also within the acceptable range. The sundries in the dust cup enter the containing groove under the action of the air pressure difference in the dust cup and the containing groove, residues of the sundries in the dust cup are reduced or even avoided, and the situation that normal use of the cleaning device is affected due to the fact that impact generated when the sundries enter the containing groove is too large is avoided.

The invention discloses a pressing device for production of a nanometer heat insulation plate, and relates to the technical field of plate processing. The press-fit device for production of the nano heat insulation plate comprises a press-fit plate, a press-fit plate, a press-fit plate, a press-fit device and a press-fit device, the press-fit plate is located above the nano heat insulation plate to be press-fit, and the press-fit plate is pressed downwards to press the nano heat insulation plate; the pressing device comprises a pressing plate, first wedge-shaped blocks and a second wedge-shaped block, the first wedge-shaped blocks are distributed on the two sides of the middle area of the upper surface of the pressing plate, the upper surface of each first wedge-shaped block is provided with a first slope surface, and a third spring is fixedly arranged below the side, away from the center of the pressing plate, of each first wedge-shaped block. And the pressure seat is used for extruding the wedge-shaped block I, so that the wedge-shaped block I bears force in the horizontal direction and the vertical direction, on one hand, the wedge-shaped block I can apply pressure to the middle of the pressing plate so as to press the nanometer heat insulation plate, and on the other hand, the wedge-shaped block I can generate horizontal movement to adjust the self pressure applying position, so that the pressure applying range is greatly expanded.

The invention discloses an intelligent detection and alarm system for an urban rail vehicle, relates to the technical field of rail transit and transportation, and solves the technical problems that an existing monitoring method is difficult to accurately monitor various pressures in the running process of a train, so that the early warning effect is poor, and the safety of the train in the running process is reduced. The data acquisition module is used for acquiring train driving information, voltage data and pressure data according to an acquisition signal; the data processing module is used for generating an early warning pressure range according to the train driving information; generating a pressure alarm signal according to the early warning pressure range and the pressure of the pressure tank, the pressure of the brake pipe and the pressure of the brake cylinder in the pressure data; generating an acquisition signal according to the early warning pressure range, the pressure data and the voltage data; the voltage early warning module is used for generating a voltage alarm signal according to the voltage data; an alarm is given according to the voltage alarm signal; the wind pressure early warning module is used for giving an alarm according to the pressure alarm signal; and the safety of the train in the running process is improved.

The invention relates to the technical field of epitaxial growth, and particularly provides a double-butterfly-valve pressure control system and method and an epitaxial furnace, and the system comprises an exhaust pipeline which is sequentially provided with a gate valve, a first pressure collection assembly, a first butterfly valve and a process pump; a second butterfly valve is arranged on the pressure regulating pipe; a second pressure acquisition assembly; the controller is used for adjusting the opening degree of the first butterfly valve according to the first preset opening degree range, the first pressure information and the first preset pressure, and when the opening degree variable quantity of the first butterfly valve is within the first preset opening degree range and the difference value between the first pressure information and the first preset pressure is within the first preset pressure range, the first butterfly valve is opened. The opening degree of a second butterfly valve is adjusted according to the second preset opening degree range, the second pressure information and the first preset pressure; the system can effectively reduce the adjustment frequency of the opening degree of the first butterfly valve, so that the service life of the first butterfly valve is effectively prolonged, and the maintenance period of the epitaxial furnace is effectively shortened.

The invention relates to the technical field of image processing, in particular to a numerical simulation method and system based on erosive wear of a titanium alloy pump valve, and the method comprises the steps: eroding the titanium alloy pump valve based on the titanium alloy pump valve, the flow velocity range, the pressure range, the particle concentration and the particle size distribution to obtain a worn workpiece and a three-dimensional scanning wear morphology image, constructing an erosion simulation model, calculating particle impact force, wear depth and particle kinetic energy, constructing a simulated wear depth histogram, calculating a height gradient and a gradient dynamic threshold value, segmenting a gradient segmentation image, calculating a depth dynamic threshold value and depth information, segmenting an actual wear distribution diagram, marking the actual wear distribution diagram to obtain a marked area, calculating the wear degree of the marked area, and calculating the wear degree of the marked area. And an actual abrasion depth histogram is constructed, the erosion simulation model is adjusted, an adjusted erosion simulation model is obtained, and numerical simulation is completed. According to the method, the accuracy of numerical simulation of the erosive wear of the titanium alloy pump valve can be improved.

A system for detecting the presence of a wafer on a wafer handling robot. The system includes a robot having an end effector with a ledge portion having an opening; a vacuum pump; a conduit fluidly coupling the vacuum pump to the opening in the ledge portion; a pressure sensor located along the conduit to determine whether a measured pressure is within a target pressure range; and a wafer configured to be supported by the at least one end effector and spaced apart from the ledge portion by an air gap. When the wafer is supported by the at least one end effector in a proper position, the measured pressure is within the target pressure range. When the wafer is not supported by the wafer support structure or is supported by the wafer support structure in an improper position, the measured pressure is outside of the target pressure range.

The invention relates to the technical field of top driving devices, in particular to a buffer pad and a mechanical seal wash pipe assembly.The buffer pad comprises a first buffer part and a second buffer part, and the second buffer part is arranged on the surface, corresponding to the buffer direction, of the first buffer part; the first buffering piece has an elastic state and a limit state in the process of compressing in the buffering direction; in the elastic state, the rigidity of the first buffer piece is lower than that of the second buffer piece; and in a limit state, the rigidity of the first buffer piece is higher than that of the second buffer piece. Through cooperation of the first buffer part and the second buffer part, the buffer pad has the two-stage buffer capacity, the whole buffer pad can adapt to vibration or impact under different pressures, the pressure adapting range of the buffer pad is guaranteed, and the pressure adapting range of the wash pipe is widened.

According to the present disclosure, it is possible to suppress a change in a state of a gas. There is provided a technique that includes: (a) adjusting at least one selected from the group of a pressure and a temperature of a buffer space in a buffer chamber when the temperature of the buffer space is out of a pre-set temperature range or the pressure of the buffer space is out of a pre-set pressure range; and (b) processing a substrate by supplying a gas via the buffer chamber to a process chamber in which the substrate is processed.

The invention relates to a burn glove pressure monitoring method and device, a storage medium and electronic equipment, and relates to the technical field of pressure monitoring, and the method comprises the following steps: when each actual pressure is normal, based on a target area in a burn hand and at least one corresponding target pressure interval when an actual action posture appears, determining the pressure of the burn glove according to the target area; determining whether the actual pressure of the wound area is adjusted and optimized or not; if yes, determining a to-be-optimized area needing pressure adjustment and optimization from each wound area; determining a first appropriate pressure of the to-be-optimized area, and adjusting the actual pressure of the to-be-optimized area to the first appropriate pressure; and when abnormal pressure exists in the actual pressures, determining the wound area corresponding to the abnormal pressure as an abnormal area, determining a second suitable pressure of the abnormal area, and adjusting the actual pressure of the abnormal area as the second suitable pressure. The effect of the burn gloves on inhibiting scar hyperplasia can be improved.

The invention discloses an automatic switching metering method suitable for multiple ranges of a pressure gauge, and the method comprises the steps: S1, obtaining the information of a current pressure measurement environment, inputting a pressure range prediction model, and outputting an initial recommended range; s2, selecting a measurement parameter of a corresponding measuring range, and performing preliminary measurement on the pressure at the initial sampling frequency to obtain a preliminary measurement pressure value; s3, comparing the preliminarily measured pressure value with the upper range limit and the lower range limit of the selected range, and judging that a higher / lower range needs to be switched; s4, the calibration coefficient of the range to be switched is obtained and corrected, and a corrected pressure measurement value is obtained; s5, dynamically adjusting the sampling frequency; and S6, the pressure change rate is monitored in real time, and the measuring range capable of covering the current pressure change range is preferentially selected for measurement. According to the invention, multi-range intelligent switching of the pressure gauge is realized, and the measurement precision and response speed in the full-range range are improved.

The invention is suitable for the technical field of mounting, and provides a chip mounter high-speed pressure control method, device and system. The chip mounter high-speed pressure control method comprises the following steps: controlling a driving module to drive an adsorption part to move at a first preset speed; after it is detected that the distance between the adsorption part and the mounting surface reaches the preset distance, the driving module is controlled to drive the adsorption part to move at a second preset speed; when a displacement signal sent by the displacement sensor is received, the driving module is controlled to drive the displacement sensor to move at a third preset speed; and detecting the pressure on the mounting surface according to the pressure detection strategy, and closing the driving module when the pressure reaches the target pressure. According to the embodiment of the invention, accurate control from a small pressure range to a large pressure range can be realized, and the driving module can be controlled to move at a relatively high speed before the contact between the adsorption part and the mounting surface is determined, so that the mounting efficiency is improved.

The invention relates to a performance-programmable pressure sensor and a preparation method and application thereof.The preparation method of the performance-programmable pressure sensor comprises the steps that a PDMS soft template is prepared firstly, then an electrode layer base layer and an ion layer are prepared based on the PDMS soft template, a conductive film is deposited on the surface of the electrode layer base layer to obtain an electrode layer, and the electrode layer base layer and the ion layer are prepared. And finally, assembling the two electrode layers and one ion layer to prepare the pressure sensor with programmable performance. According to the structural design of the pressure sensor with the programmable performance, a gradient modulus and microstructure comprehensive strategy is provided, microstructures with different heights and rigid-flexible mixed materials are adopted to regulate and control the sensitivity and the detection range of the sensing device, and high-sensitivity sensing in a wide pressure range is achieved; meanwhile, the pressure sensor can adapt to a handwriting recognition application scene, the sensitivity or the sensing range can be improved, and accurate information is extracted and recognized through a machine learning model.

The invention belongs to the technical field of data processing, and particularly relates to an intelligent analysis method and system for valve performance test data, and the method comprises the steps: constructing a dynamic sensitivity factor capable of reflecting the system stability through analyzing the change rate of a flow time sequence and the fluctuation of a current time sequence, and generating a fatigue factor in combination with a pressure range; further, an abnormal pressure peak value caused by the water hammer effect is identified and quantified, and a fatigue factor is corrected to obtain a degradation acceleration factor which can better reflect real physical wear; finally, the composite dynamic features and the traditional static features are jointly input into a GBDT model for training, so that early failure symptoms can be captured, and the accuracy and reliability of prediction of the remaining service life of the valve are improved.

The invention discloses a blood bag continuous extrusion method and device, a medium and equipment. The method comprises the steps that the blood bag continuous extrusion process is divided into a plurality of extrusion stages; obtaining a target extrusion parameter, and generating a target pressure value corresponding to each extrusion stage; and the current extrusion pressure is collected, the current extrusion pressure is adjusted to the corresponding target pressure value based on the preset control scheme of each extrusion stage, and continuous extrusion is conducted till the preset extrusion ending condition is met. The extrusion process is divided into a plurality of stages, the actual extrusion pressure of a target monitoring point on a mother bag serves as system input, the running speed of a stepping motor is adjusted in real time through a PID algorithm, and therefore the whole extrusion process is controlled to be within a proper pressure range; and after the pressure reaches the target value, the whole extrusion process is subjected to pressure maintaining according to the set small target pressure, so that the preparation efficiency is high, the hemolysis phenomenon is avoided, the quality of the separation process and the product percent of pass are improved, and the risk of abnormal quality is reduced.

The invention relates to the technical field of electric digital data processing, in particular to a method and a system for monitoring the running state of leak detection equipment in an air tightness experiment, which comprises the following steps: acquiring historical pressure data and historical temperature data of the leak detection equipment under a normal working condition, and calculating the pressure range of the leak detection equipment; the range is adjusted based on the mean value and the standard deviation of the historical pressure, the ratio of the current temperature to the set standard temperature, the temperature compensation coefficient and the pressure compensation coefficient; an optimal pressure compensation coefficient and an optimal temperature compensation coefficient are obtained, and corrected pressure is calculated; if the corrected pressure exceeds a preset threshold value, timing is started, and if the duration of the threshold value exceeding the preset threshold value exceeds a set time threshold value, it is judged that the leakage detection equipment is abnormal. According to the invention, the problem of low accuracy of monitoring the operation state of the air tightness experiment leak detection equipment is solved.

A firearm suppressor having a core, a first end, a second end, a hollow bore extending along a longitudinal axis from the first to the second end, and an energy management structure. The first end of the suppressor includes a set of threads for connecting the suppressor to a firearm, and the bore includes a plurality of openings into the energy manager. The energy manager includes a plurality of chambers extending from the bore. A method of designing a firearm suppressor including setting a pressure range to be contained by the suppressor, establishing certain manufacturing parameters, choosing a structure for the core, modeling performance values for the core, selecting a geometry of the structure, and selecting a sleeve for the core.

The invention discloses a supercharged engine assembly and a vehicle. The supercharged engine assembly comprises a Venturi tube, a function channel I and a function channel II. The functional channel I is used for communicating an oil-gas separation gas outlet of the engine to the throat position of the Venturi tube; a diffusion section of the Venturi tube is communicated to the rear side of the air filter and is positioned on the front side of an air inlet of the supercharger; the inlet section of the Venturi tube is communicated to the rear side of the air outlet of the supercharger through a functional channel II; a valve A is arranged on the function channel I, a valve B is arranged on the function channel II, and the valve A and the valve B are controlled to be opened and closed so that the pressure in a crankcase of an engine can be controlled within a preset range. On the premise that the cost can be controlled, the pressure of the crankcase of the supercharged engine can be effectively controlled within a set pressure range through some means.

The invention relates to the technical field of stacker-reclaimers, in particular to a bucket-wheel stacker-reclaimer grounding force detection method, which comprises the following steps of: pitching a cantilever beam to the highest point, releasing redundant back pressure of a hydraulic oil cylinder, detecting a pressure value of a rod cavity through a pressure measuring point on the hydraulic oil cylinder, and recording data; pitching the cantilever beam to the lowest point, releasing redundant back pressure of the hydraulic oil cylinder, detecting a pressure value of a rodless cavity through a pressure measuring point on the hydraulic oil cylinder, and recording data; comparing the measured pressure value with a rated pressure value of the hydraulic oil cylinder; if the pressure values of the two cavities are both within the rated pressure range of the hydraulic oil cylinder and the two cavities have 30% of allowance, the grounding force balance of the whole machine is considered to be qualified, and detection is ended; if the pressure value of one cavity is within the range of the rated pressure value of the hydraulic oil cylinder, but the allowance is less than 30%, the grounding force balance of the whole machine is judged to be unqualified, the balancing weight is adjusted, detection is performed again after adjustment, the detection method is relatively simple, and the balance of the whole machine is avoided after the balance weight is adjusted.

In some embodiments, a pressure sensor may comprise a housing, a flexible membrane which, together with the housing, forms a hermetically closed cavity, a sensor element arranged in the hermetically closed cavity, and a gaseous medium in the hermetically closed cavity. The sensor may detect a change in a physical property, of the flexible membrane, associated with an external pressure pressing inward into the flexible membrane of the hermetically closed cavity.

The invention provides a hydrogen production control method and related equipment, the hydrogen production control method is applied to a hydrogen production system, the hydrogen production system comprises a first valve and a second valve which are used for adjusting the internal pressure, the pressure adjusting speed of the second valve is larger than that of the first valve, and the hydrogen production control method comprises the steps that in the process that the hydrogen production system generates target gas, the target gas is generated; and controlling the hydrogen production rates of the first valve, the second valve and the hydrogen production system to adjust the internal pressure, so that the adjusted internal pressure of the hydrogen production system is within a preset target pressure range of the hydrogen production system. According to the technical scheme, the first valve and the second valve with different pressure adjusting speeds are adopted, and the internal pressure of the hydrogen production system is adjusted by combining the hydrogen production rate, so that the internal pressure of the hydrogen production system can be reasonably adjusted and stabilized to the preset target pressure range, and a better hydrogen production effect is achieved.

The invention discloses a double-drive servo press. The double-drive servo press comprises a rack, an upper punching device, a lower punching device, a feeding device and a die core. The upper punching device comprises two sets of driving mechanisms and an upper punching assembly, and the two sets of driving mechanisms are fixed to the top end of the rack and arranged in the X-axis direction. The lower punching device is composed of three stacked lower punching mechanisms, each mechanism is provided with a lower punching plate and two sets of driving mechanisms, the driving mechanisms are all arranged at the bottom of the rack, the lower punching plates of the three lower punching mechanisms are stacked in the Z-axis direction and connected to the two corresponding sets of driving mechanisms respectively, and the mold core is located in the center of the bottom of the rack and penetrates through the lower punching plates. The feeding device is installed on the side wall of the rack, and the feeding end of the feeding device is located on the upper surface of the third lower punching plate. The upper mechanism and the three sets of lower punching mechanisms are each provided with a dual-drive mechanism, the pressure range and synchronism of the press are improved, and meanwhile the size is reduced.

The invention discloses a modularized gas pressure controller with a replaceable measuring range and a gas pressure regulation and control method, and belongs to the technical field of mechanical measurement. The invention aims to solve the problems that the whole air pressure controller needs to be replaced in the air pressure regulation and control process, the operation is tedious and the replacement is inconvenient. The device comprises a box body and an air pressure measurement and control module detachably connected in the box body, a main control circuit board is fixedly connected in the box body, and the air pressure measurement and control module comprises a measurement and control circuit board, and a sensor and a reference sensor which are connected with the measurement and control circuit board; the main control circuit board is in communication connection with the measurement and control circuit board; the multiple air pressure measurement and control modules are identical in appearance specification, and each air pressure measurement and control module has a unique measuring range. According to the invention, the air pressure measurement and control module with the target air pressure range is selected according to needs and is installed in the box body, the operation is simple and rapid, meanwhile, 1ms process control is realized by using the rapid response of the reference sensor, and 0.01-level air pressure measurement high-precision output is realized by using the sensor.