39results about How to "Overcome state" patented technology

The invention relates to a damping-adjustable magneto-rheological lag damper. The damping-adjustable magneto-rheological lag damper comprises a cylinder barrel, a piston rod, a piston component and a damping adjusting mechanism. Stub shafts are integrally produced at the outer edge of the left end of the cylinder barrel symmetrically and radially, and an end cover is mounted at the right end of the cylinder barrel hermetically and coaxially. The piston rod is penetratingly mounted in the cylinder barrel coaxially, and two ends of the piston rod are positioned outside the cylinder barrel. The piston component is mounted at the position, on the inner left side of the cylinder barrel, of the piston rod coaxially. The damping adjusting mechanism is slidably mounted at the position, corresponding to the piston component and positioned on the inner right side of the cylinder barrel, of the piston rod coaxially and rotates around an axial center by a certain angle prior to being fittingly mounted together with the piston component, and the left end, positioned outside the cylinder barrel, of the piston rod is in coaxial threaded connection with a rod-end joint bearing. The damping-adjustable magneto-rheological lag damper has the advantages of simple structure, low energy consumption, small size, rapidity in response, continuous forward and reverse adjustability in damping force within a wide range, good temperature stability, easiness in combination with a computer to achieve intelligent control and the like, thereby being quite promising in application prospect.

The invention relates to the technical field of information processing, in particular to a home endowment service information reporting and processing system, a reporting terminal and a service system. The home endowment service information reporting method includes: collecting demand information of a user through the wearable terminal, wherein the demand information at least includes one of the followings: medical service demand information, food and beverage service demand information, domestic service demand information and property service demand information; reporting the demand information through the wearable terminal. In the home endowment service information reporting and processing method and the reporting terminal and service system, the demand information of the user is collected through the wearable terminal, and the user can carry along with the wearable terminal and report the demand information any time, so that the user state can be timely monitored, and the technical problem that the user state cannot be timely monitored in a home endowment service platform in the related technology is solved.

A medical image segmentation method based on quantum-behaved particle swarm cooperative optimization mainly solves the problem that increasing of categories in the prior art of image segmentation results in overlong segmentation time, local optimum of segmentation results and low segmentation precision within bearable time. The technical scheme includes step one, reading in medical images to obtain a matrix; step two, initializing population; step three, obtaining individual optimum and global optimum; step four, generating new individuals; step five, generating new individual optimum and global optimum; step six, judging whether the current iteration meets the maximum iteration or not, if yes, performing the step seven, if not, returning to the step four; step seven, performing image segmentation; and step eight, outputting segmented image matrix. The Monte Carlo method is used for multiple measurement during image segmentation threshold valuating, cooperation strategy is used for individuals obtained by multiple measurement, and accordingly the medical image segmentation method has the advantage of quickness in obtaining of ideal segmentation results and can be used for multi-threshold segmentation of medical images.

The invention discloses an unsaturated soil direct-shear test device with a function of controlling the suction by the negative pore water pressure. The unsaturated soil direct-shear test device comprises a direct-shear apparatus, a soil body water content change measurement system, and a positive and negative pressure conversion system, wherein the soil body water content change measurement system is composed of a dryer, a water container and a weight sensor; the positive and negative pressure conversion system is composed of a positive pressure control meter, a negative pressure control meter, a pressure converter and an air compressor; the loading system comprises a vertical load loading system and a horizontal load loading system; and the bottom surface of a lower shear box and the upper surface of a base oppositely slide in parallel through a sliding pair. By using the unsaturated soil direct-shear test device disclosed by the invention, a natural state of an unsaturated soil body is really reproduced when the suction is controlled; the effect of the suction of unsaturated soil on the shearing strength can be accurately tested; and meanwhile, the structure of the common unsaturated soil direct-shear apparatus at present is simplified. The unsaturated soil direct-shear test device disclosed by the invention is simple in structure, convenient to operate and easy to grasp.

The invention relates to a fracture contraposition machine, which is characterized in that a lead screw neck is sleeved in a shaft hole at a main supporting plate; a lead screw nut is fixedly connected with an auxiliary supporting plate; one end of a guiding bar is fixed at the main supporting plate while the other end interpenetrates in a guide sleeve connected with the auxiliary supporting plate; a concave annular sidestep is arranged at each inner side of each upper central section of the main and auxiliary supporting plates respectively; an arc guide strip hole is arranged on the annular sidestep; an annular angle-adjusting disk is wedged at the annular sidestep; a guidepost pin is arranged in the arc guide strip hole with the lower end sleeved on the angle-adjusting disk; a regulating gear meshed with the sawteeth at the edge of the angle-adjusting disk is arranged in a gear hole at the supporting plate; a steel nail hanger or a clamping device is arranged in the arc strip hole of the angle-adjusting disk; a retaining sleeve frame is arranged at the lower part of the main or auxiliary supporting plate. The invention has the advantages that the contraposition error rate is very low; the invention has strong reliability to help patients recover completely; the complete cure rate is up to 95%; the surgery time and sealing time are both shortened by more than one third; the invention not only lightens the suffering of patients but also saves the cost for medical service.

The invention discloses a pressure plate testing device capable of controlling the suction force by negative pore water pressure. The pressure plate testing device comprises an unsaturated soil consolidation apparatus, a soil water content change measurement system and a positive and negative pressure conversion system, wherein the soil water content change measurement system consists of a dryer, a water container, a weight sensor and a control system; the positive and negative pressure conversion system consists of a positive pressure control meter, a negative pressure control meter, a pressure converter and an air compressor; a top cover of a pressure chamber is provided with an exhaust hole, so that the pressure chamber is communicated with the atmosphere; and the exhaust hole is sealed by a piece of filter paper which is ventilated and waterproof. For a sample container of the pressure plate testing device, the air pressure in the pressure chamber is equal to the atmosphere pressure, and the suction force value is equal to the absolute value of the pore water pressure, so that the natural state of unsaturated soil can be truly reflected when the suction force is controlled, the suction force state of the natural unsaturated soil is simulated in deed, and the defects of axis-translation technique are overcome; and the pressure plate testing device is simple in structure, convenient to operate and easy to master.

The invention relates to a soil sampler, and particularly relates to a liner in-situ soil sampler with a bracket. The soil sampler comprises a soil sampler main body, a fixing sleeve, a screw, a screw fixer, a triangular support bar, and a disc-shaped base, wherein the fixing sleeve is arranged on the soil sampler main body; the screw with a spanner at one end is connected to the fixing sleeve; the screw fixer is sleeved on the screw; the triangular support bar is connected to the screw fixer; and the disc-shaped base playing fixing and limiting roles on the soil sampler body is arranged at the lower end of the triangular support bar. The soil sampler is used for collecting different depths of soil analysis samples, not only suitable for in-situ soil sampling for scientific research, but also suitable for soil test sampling, and suitable for the departments for scientific research, education and production related to soil and geotechnique.

The invention discloses a radar-based non-contact human body breathing detection method and a radar-based non-contact human body breathing detection device. An intelligent algorithm is used to discriminate the motion posture of a vital sign target in a detection area, and when a human body target is determined in a quiet state, the respiratory detection is started, and a respiratory value is output. In the event of respiratory abnormality, an alarm message is sent to notify the family member or the nursing staff in time, so that the people can be promptly treated, the reliability of the respiratory detection is remarkably improved, and the technical problem that the current non-contact detection breathing method cannot determine and detect the target state of the human body can be solved;by performing a wavelet analysis algorithm, time-domain peak finding and downsampling processing on the sampled echo signals, a respiratory signal can be accurately identified and the respiratory frequency can be obtained, and the method has the advantages of high accuracy and strong real-time performance.

The invention provides a video conference system and an informing method of microphone states in a conference hall. The method is used for a video conference system comprising at least one multi-pointcontrol unit (MCU) and at least one conferencing terminal. The method comprises the following steps: according to the received microphone state information, the MCU updates and stores the microphonestates of the corresponding conferencing terminals, and transmits indication information carrying the microphone states of all the conferencing terminals to the conferencing presider terminal, whereinthe microphone state information comes from the conferencing terminals of which the microphone states are changed; and the conferencing presider terminal acquires the microphone states of all the conferencing terminals according to the indication information. The invention enables the conferencing presider terminal to quickly position the microphone states of all the conferencing terminals and dispose the problem of no sound of the conferencing terminals in time.

The invention relates to a liner pipe type vertical-compression undisturbed soil sampler which is used for collecting a soil sample, qualitatively and quantitatively analyzing soil ingredients and physical and chemical properties, and is applicable to scientific research, teaching and production departments related to soil and earthwork. The soil sampler comprises a soil sampler main body, a liner pipe and a stopping block which are arranged inside the soil sampler main body, a cover cap arranged at the upper end of the soil sampler main body, a triangular bracket arranged on the soil sampler main body, and a jack arranged between the soil sampler main body and the triangular bracket. The liner pipe type vertical-compression undisturbed soil sampler provided by the invention has the advantages of simple and reasonable structure, convenience in operation, time-saving and labor-saving properties, high efficiency and the like. The invention provides the liner pipe type vertical-compression undisturbed soil sampler for pressing the soil sampler into soil by using the jack.

The invention discloses a preparation method of a multi-ceramic composite coating. The method comprises the following steps of 1, preparing oxide/silicon carbide/aluminum composite powder for thermalspraying, wherein oxides include one to four of a zirconium oxide, a titanium oxide, a hafnium oxide, a tantalum oxide, a niobium oxide, a vanadium oxide, a chromic oxide, a molybdenum oxide and a tungsten oxide; 2, performing pretreatment on the surface of a substrate material needing to be coated; 3, adopting a thermal spraying method for coating the surface of the substrate material with the oxide/silicon carbide/aluminum composite powder. Accordingly, the multi-ceramic composite coating is obtained through in-situ synthesis. The defects that in the prior art, the technology for preparing the multi-ceramic composite coating is complete, high in cost, large in contamination, low in deposition efficiency, poor in coating performance and not suitable for application in large-scale industrial production are overcome.

The embodiment of the invention provides an intelligent comprehensive inspection server, a terminal and a system, and belongs to the technical field of power systems. The intelligent comprehensive inspection server comprises a task making module and a task issuing module. The task making module is used for obtaining a pre-made inspection plan and generating an inspection task according to the inspection plan after the inspection plan is confirmed to be passed. The task issuing module is used for issuing the inspection task to the intelligent comprehensive inspection terminal. According to theintelligent comprehensive inspection server provided by the embodiment of the invention, the defects of missing inspection, missed recording, rerecording, untimely inspection and the like in a manualinspection mode can be avoided. In addition, the defects that manual inspection management is high in cost and the working state of inspection personnel cannot be supervised can be overcome. Meanwhile, inspection data can be uploaded to an information management system, so that management personnel can conveniently manage the daily working process and equipment inspection maintenance of the hydropower station, and the problems of large workload, low efficiency and the like of the existing power station equipment inspection management can be solved.

An LS (least square)-based multi- model adaptive state estimation method includes the following steps: S1, same moving object observation sequences of sensors are acquired to form moving object X, Y and Z direction observation sequences in the space rectangular coordinate system at different times; S2, the degrees and the number of time-variable polynomial equations are determined, and LS (least square)-based polynomial equation coefficient estimation of the moving object X, Y and Z direction observation sequences is performed respectively; S3, according to the polynomial equations in the step S2, regression sum of squares and residual sum of squares are respectively calculated for F-test to determine a best fit polynomial; S4, a corrected best fit polynomial is determined; S5, a first time partial derivative and a second time partial derivative are sought respectively to obtain moving object corresponding velocity and acceleration polynomials; and S6, object position state estimator coordinate conversion is performed to obtain corresponding position coordinates, and then by combining with velocity estimated values, object state estimation can be completed.

The invention discloses a flat gate valve sealing structure, which comprises a valve body and a gate plate, wherein a support table is arranged at one end of the inner wall of the valve body; a guide rail is arranged at the other end of the inner wall of the valve body; the gate plate is arranged in the valve body in cooperation with the guide rail through the support table; and the gate plate is further provided with a sealing ring. The support table and the guide rail are arranged in the valve body, and are used together, so that the valve can cling to the sealing ring surface of the gate plate under the action of pressure in the opening and closing processes of the valve so as to be sealed completely; the gate plate and the medium gravity are supported by the support table, so that the situation that floating valve seats of original valve products of the same type adopted in vertical or inclined pipelines and the like are compressed by the gate plate and medium pressure for a long time is eliminated, failure caused by non-floating of the floating valve seat which is compressed for a long time is avoided, the phenomenon of sealing failure of the valve is avoided, and bilateral reliable sealing of the inlet and outlet ends of the valve is ensured.

The invention discloses a straightening roller for cold rolling of a wide and thick plate and a manufacturing method thereof. The straightening roller is solid, length of the roller body is 5-7m, and ratio of length to diameter is 15-30. The manufacturing method includes steps: transversely placing a solid roller blank of MC5 material with length of 5-7m and ratio of length to diameter of 15-30, carrying out rough lathing and modified heat treatment to make bending deflection of the roller bland less than 2mm; carrying out quenching by using a intermediate frequency induction heating quenching device, wherein temperature is from 980 DEG C to 1050 DEG C, and a central rack is used for supporting the roller body in the quenching process; carrying out low-temperature tempering with temperature from 110 DEG C to 150 DEG C; and carrying out grinding processing during which two coordination racks are used for supporting the roller body. The yield strength of the straightening roller of the present invention can reach 830-870MPa, elongation can reach 10-20%, so that the straightening roller can be used for cold rolling of the wide and thick plate.

The invention discloses a preparation method of a tungsten boride composite coating, and relates to coating of boride on metal materials. The tungsten boride composite coating is synthesized through a thermal spraying in-situ reaction. The preparation method comprises the steps that tungsten oxide/boron carbide/aluminum composite powder used for thermal spraying is prepared; the base material surface needing the coating is pretreated; and the tungsten boride composite coating is prepared. The defects that the existing technology for preparing the tungsten boride composite coating is complex, high in cost, large in pollution and low in deposition efficiency, and the coating is small in thickness, low in compactness, poor in uniformity, low in toughness, poor in binding force with a base body, likely to be cracked and not suitable for being applied in large-scale industrial production are overcome.

The invention discloses a bench test device for a drive axle assembly with an axle load, and the device comprises a drive mechanism connected with the input end of a to-be-detected drive axle, a loading mechanism which is connected with two output ends of the to-be-detected drive axle, and an axle case loading mechanism for applying a load to the case of the to-be-detected drive axle. The axle case loading mechanism comprises a press plate assembly which is used for compressing the case of the to-be-detected drive axle, an axle case loading apparatus which is used for applying a load to the press plate assembly, and a sensor which is used for detecting the applied load of the axle case loading apparatus. According to the invention, the device irons out the defects of a bench test carried by a bench test device for a drive axle assembly under the no-load condition in the prior art. The device can simulate the operation condition of a real car with the drive axle with the load, and achieves a purpose of checking the drive axle and the accessories thereof.

The invention discloses a traveling rail side wireless tracking transmission method, device and system to overcome at least one of the defects of the prior art that frequency spectrum using efficiency is low, propagation power loss is high, and network fault positioning capacity is not available. The method comprises the steps of determining an antenna unit for communication corresponding to the current position and/or tending position of an N vehicle-mounted radio frequency unit in a first radio frequency receiving/transmitting array, and a radio frequency receiving/transmitting unit RF_N or RF node corresponding to the antenna unit for communication; sending radio frequency signals by means of the antenna unit for communication and the radio frequency receiving/transmitting unit RF_N to the N vehicle-mounted radio frequency unit on a first track in an adjacent region time-frequency overlapping mode, and/or receiving radio frequency signals from the N vehicle-mounted radio frequency unit on the first track. The device and system are high in frequency spectrum efficiency and low in power consumption, can be used for passenger communication as well as train running control, and can remarkably improve the traveling safety and traffic density of high-speed trains/subways.

The invention discloses a yogurt fermentation tank. The tank comprises a tank body, a stirring device, a CIP washing device and a motor transmission gear. The motor transmission gear is mounted on the top of the tank body, the bottom of the tank body is arranged as a cone bottom, the vertex angle of the cone is 30-90 degrees, the stirring device comprises a frame type stirring mechanism and a blade stirring mechanism which are mounted on a transmission shaft 41 in the tank body, and the CIP washing device comprises three groups of spray headers which are respectively installed on the top, in the middle and at the bottom of the inner wall of the tank body. Compared with the prior art, the detects are overcome by the yogurt fermentation tank that when high viscosity yogurt is stirred by a traditional fermentation tank, the viscosity losses are large and mouthfeel and shape are poor, and therefore the quality of yogurt is improved; at the same time, the stirring time is shortened, and the power consumption is reduced; the CIP washing effect and washing efficiency are improved, and the risk caused by fermentation tank contamination can be effectively reduced.

The invention discloses a video stream intelligent routing method based on QoS perception in an SDN environment. The service flow accesses an SDN network, after receiving the data packet, the SDN judges whether the service flow table is successfully matched or not, if the service flow table is successfully matched, the data is forwarded according to the Action domain of the flow table, if the service flow table is not successfully matched, whether the service is a video flow service or not is judged, if not, transmission is conducted, and if yes, the QoS perception module analyzes the QoS requirement of the video flow; the monitoring module detects link information of network bottom layer network equipment; and the route selection module selects a path for the video stream by using a DQN algorithm according to the QoS demand and link information of the QoS perception module, and issues a flow table to the underlying network device, and the underlying network device forwards data according to the flow table Action domain. According to the invention, the routing of the video stream service in the SDN environment is optimized, a special routing module is provided for the video streamaccording to the characteristics of the video stream, and the transmission quality of the video stream is improved.

The invention discloses a 05SAR-PAGE and a preparation method and an application thereof, and relates to a gel electrophoresis separation technology. The 05SAR-PAGE is a gel made from 0.05%w/v of sodium lauroyl sarcosine. The gel comprises a lower separating gel and an upper stacking gel that are same in the length and thickness. The height ratio of the lower separating gel to the upper stacking gel is 2:1-8:1. The 05SAR-PAGE of the invention overcomes defects that the SDS-PAGE can not analyze protein modification in a physiological state and the Native-PAGE can not be calibrated with proteinMarker and can not be directly used for analyzing acidic protein and basic protein. The 05SAR-PAGE has universality, simple operation and low cost and can be widely used for fundamental and applied researches in the fields such as molecular dynamics, enzymology and medicine, and brings extensive convenience to the scientific analysis of protein by the majority of experimental personnel.

The invention relates to a deceleration clutch for a washing machine. The deceleration clutch comprises a shell, a brake wheel in the shell and a wheel system in the brake wheel, and further comprises a clutch shaft sleeve capable of sliding up and down and a shifting fork driving the clutch shaft sleeve. A brake belt is arranged between the shell and the brake wheel. The brake belt surrounds the brake wheel, one end of the brake belt is fixedly installed on the shell, and the other end of the brake belt stretches out of the shell to be connected with a brake arm. The brake arm is arranged on a center shaft. The center shaft is fixedly installed on the shell. A connecting arm is arranged on the center shaft and located on the lower portion of the brake arm. The brake arm drives the connecting arm to move. The connecting arm drives the brake belt and the shifting fork to move, and the clutch shaft sleeve is driven to slide up and down to be connected with a torque shaft sleeve and a fixed shaft sleeve respectively to achieve dehydration and washing.

The invention discloses a hydraulic bulging forming method for a colored metal three-way joint. The method comprises the steps of 1, clearing and removing impurities and oil dirt attached to the inner surface and the outer surface of a colored metal pipe blank, and then smearing a lubricating agent on the outer surface of the colored metal pipe blank; 2, selecting a mold, and arranging the colored metal pipe blank with the lubricating agent into a mold cavity of the mold; 3, performing hydraulic bulging forming on the colored metal pipe blank arranged in the mold through a three-way hydraulic machine to obtain a semifinished three-way joint product; 4, performing thermal treatment on the semifinished three-way joint product; 5, repeatedly performing the step 2 and the step 3 on the semifinished three-way joint product subjected to the thermal treatment to obtain a formed piece; 6, performing stress removal thermal treatment on the formed piece; and 7, cutting off a branch pipe plug of the formed piece, then performing groove processing, and finally performing abrasive blasting to obtain a finished three-way joint product. According to the hydraulic bulging forming method disclosed by the invention, oxidization of the colored metal three-way joint in a manufacturing process is effectively prevented, the problems of residual stress and processing hardening in a forming process are alleviated or solved, and the yield of the product is obviously increased.

The invention discloses a water surface single-body unmanned boat with two water-jet propellers. A combined stabilizing fin is arranged at the bottom of an after-body of a main boat body and is composed of two cylindrical attached bodies and a wing, wherein the two cylindrical attached bodies are symmetrical in the width direction, the wing is fixedly connected with the bottom surfaces of the two cylindrical attached bodies and symmetrically arranged in the width direction, the wing is perpendicular to the two cylindrical attached bodies, the tops of the two cylindrical attached bodies are connected with the main boat body in a seamless mode, the wing is provided with two water inlets, and the water inlets are communicated with a water outlet to from a main flow passage for water flow. The water-jet propellers are arranged at the bottom end of the boat body and leans to the back, the noise of the boat body is lowered, the sliding surface of the unmanned boat is not damaged, and transverse stability and longitudinal stability are obviously improved.

The invention discloses a handheld debugger for a flux temperature method heat sharing device in a heating supply household metering system, which comprises a power module, a wireless single chip microcomputer U1, a key module, a display unit, a real-time clock (RTC) and electrically-erasable programmable read-only memory (EEPROM) module, and a wireless communication unit used for being wirelessly connected with the flux temperature method heat sharing device, wherein the key module, the wireless single chip microcomputer U1 and the display unit are connected in sequence; and the power module, the RTC and EEPROM module and the wireless communication unit are all connected with the wireless single chip microcomputer U1. By using the handheld debugger for the flux temperature method heat sharing device in the heating household-based metering system, which is disclosed by the invention, the defects that in the prior art, the working condition cannot be detected, the mounting difficulty and the debugging difficulty are big, and the like can be overcome, so the advantages that the working condition can be detected, the mounting and the debugging are convenient, the communication compatibility is high and the operation mode is simple can be realized.

The invention discloses a network television safety management system which comprises a memory module, a detection module, a processing module and an executive module, wherein the memory module is used for storing file rules of a network television, the detection module is used for acquiring hardware information of the network television and file information of stored files, the processing module is used for outputting the hardware information and the file information of the stored files, and the executive module is used for processing files stored in the network television according to the file rules after receiving orders of processing the files, wherein the orders are sent by a user. The invention further discloses a network television safety management method. The network television safety management system and the method overcome the technical defects that in the prior art, hardware status of the network television cannot be monitored and the stored files in the network television are not maintained conveniently. Technical effects that safety guarantees can be provided for the network television are achieved.

The invention relates to a washing machine and a deceleration clutch for the same. The deceleration clutch at least comprises a shell, a brake wheel located in the shell and a wheel system located in the brake wheel. A direct drive motor is fixedly connected to the lower portion of the shell. A clutch shaft sleeve capable of sliding up and down is arranged in a cavity of a stator of the direct drive motor and driven by a shifting fork. A space is formed between the inner side wall of the stator and the outer side wall of the clutch shaft sleeve. A gap is formed in the stator and located on the upper portion of the space. At least one part of the shifting fork stretches into the gap, is located in the cavity of the stator, makes contact with the clutch shaft sleeve and shifts the clutch shaft sleeve to slide up and down to achieve dehydration and washing.

The invention discloses a water-surface monomer nobody wing planing boat with two hydraulic propellers. The relatively front boat body bilge, of a boat midship of a main boat body is provided with two flared wing type columnar compound hydrofoils which are composed of two section-variable columnar attachment bodies and two wings; the tops of the two section-variable columnar attachment bodies are in seamless connection with a boat body; the bottom of one section-variable columnar attachment body is fixedly provided with one wing; the included angles between the two wings and a horizontal plane are 25-45 degrees; the relatively front part of each wing is provided with a water inlet communicated with a water outlet. An original hydro skimmer with a hydraulic propeller is lowered to a bottom wing from the water inlet on a sliding surface, so that a forward thrust can be provided so as to enable the boat to advance, a vertically upward added lift force also can be provided so as to enable the front part of the boat body to be lift up, and further the boat can slide better; the water inlet has a distance with the sliding surface, so that the resistance can be well reduced, the sliding efficiency and the rapidity of the boat are greatly improved.

The invention discloses a single-stage multi-effect evaporation device for overcoming defects of the prior art, and relates to a single-stage multi-effect evaporation and separation device. The single-stage multi-effect evaporation and separation device comprises evaporators, a steam compressor, a pump and a control valve, wherein the pump is communicated with a pipeline and is used for conveyingvarious types of liquid; the first evaporator and the second evaporator are arranged in the device. The single-stage multi-effect evaporation and separation device has the advantages that the defectsof the prior art are comprehensively overcome; the running cost of equipment is greatly reduced; the energy-saving and consumption-decreasing measures can be smoothly implemented.

The invention discloses an online ultrasonic detection device and method for internal defect expanding of a turbine engine rotor. The device mainly comprises a probe mounting cover, an ultrasonic detection subsystem, a high-speed slip ring and an industrial control computer, wherein a phased array full focusing probe and a calibration phased array full focusing probe are arranged on a probe mounting disk through threads. Through adoption of an online ultrasonic detection technology for internal defects, online detection of the internal defects of the turbine engine rotor is realized in a rotating state; the problem that the detection needs to be performed when a workpiece is in a static state and after a test system is removed and disassembled is solved; the detection workload and the influence on the test schedule are lowered; the problem concerned with reasonable formulation of the detection period is solved; and the aim of effectively recognizing internal defects, cracks and changesthereof is fulfilled. The online detection method for internal defects of the turbine engine rotor has the characteristics of high internal defect scanning efficiency and high recognition capability,and the defects of the existing internal defect lossless detection technology are overcome.