33results about How to "Meet the verification requirements" patented technology

A relay protection stable-state digital dynamic simulation test system comprises a graphic data memory module, a power network modeling module, a parameter setting module, a failure setting module, a failure data calculation module, a failure analysis module and a relay protection simulation module, wherein, the graphic data memory module is used to store the graphic model of various elements of a power system and various failure calculation models; the power network modeling module, according to the structure of the to-be-detected power network, is used to select elements and corresponding failure calculation model and form the power network topological structure of the failure calculation models; the parameter setting module is used to set the concrete parameters of each element of the established failure calculation models; the failure setting module is used to set the failure types and parameters of the failure calculation models; the failure data calculation module, according to the network topological structure of the power network, is used to calculate the parameter after failure occurs, i.e. the current of each subcircuit, the voltage of each busbar and the branching factors among subcircuits. The invention realizes real simulation of various failures in power system, thereby having strong practicability.

Provided are a detection device and detection method for a direct current electric energy meter. A 32-bit microprocessor of the device is respectively connected with a field programmable gate array (FPGA), a data storage module, a communication module, a display module, a key input module and an alarm protection module; the FPGA is respectively connected with the 32-bit microprocessor, a control module, an electric energy pulse module, a temperature compensation time scale module and a data collecting module; the control module is respectively connected with a six-way voltage driving module, a current driving module and a feedback module; an output module is connected with the six-way voltage driving module, the current driving module and the feedback module; and the feedback module is respectively connected with the output module, the control module and the data collecting module. The short-term stability of the device is superior to 0.005% / min, an alternating current ripple wave is extremely small, the adjusting fineness is as high as 5ppm, and the device is extremely high in reliability and can continuously work for 24h.

The invention relates to a detector, a universal automobile meter detector and the detecting method thereof, comprising: CPU control module, frequency signal generating module, network resistance output module, programmable voltage output module, automobile meter indicator detection module, display module, and keyboard control module, where the CPU globally controls the six other modules and constantly controls the output of each module according to the instruction inputted by the keyboard control module, and various check parameters can be inputted, modified and stored through the keyboard at will so as to meet the check requirements for various meters. And the invention is a universal automobile meter detector, able to meet the detection requirements for odometers, speed meters, water temperature meters, fuel oil meters, engine oil pressure meters, gas pressure meters, voltage meters, various indicators on meter panels in various automobile meters, and it is simple to operate.

The invention relates to an electronic transformer verifying device. The electronic transformer verifying device aims to solve the problems that the conventional transformer verifying device lacks a corresponding digital interface and cannot verify an electronic transformer. The electronic transformer verifying device comprises a standard electronic transformer group, a standard merging unit, a signal conditioning box, an industrial computer, a merging unit interface, an analog quantity input interface and an optical pulse expansion interface. The signal conditioning box comprises a No.1 optical fiber transceiver, a No.2 optical fiber transceiver, an over-voltage protection circuit, a data acquisition card and an optical pulse expansion circuit; the industrial computer is provided with a No.1 electric ethernet port, a No.2 electric ethernet port and a peripheral component interconnect (PCI) bus interface; and the standard electronic transformer group can consist of a single standard electronic transformer or a plurality of standard electronic transformers according to different application occasions. The electronic transformer verifying device is applied in the field of verification of transformers for electric power systems.

The invention provides a surface source black body and a manufacturing method thereof. The surface source black body comprises a base plate and cones. The base plate is used for forming a support structure of the surface source black body. The predetermined number of cones is formed on the base plate. The cones are arranged on the base plate according to a predetermined mode. At least one part of the cones and the base plate form one body. And at least the other part of the cones is formed independently. The manufacturing of the surface source black body is simple. A processing technology is saved and cost is reduced. Manufacturing is convenient and the surface source black body is convenient to rapidly assemble. A large area of the surface source black body can be made. A high emissivity is possessed. And a verification demand of an infrared spectrum segment is satisfied.

The invention provides a handwriting verification apparatus. The apparatus comprises a parameter storage unit for storing preset characteristic parameters of hand-written handwriting, an obtaining unit for recognizing a user's hand-written handwriting and obtaining the characteristic parameters of the hand-written handwriting, a parameter comparison unit for making a comparison between the characteristic parameters of the hand-written handwriting and the preset characteristic parameters, and a determination unit for determining whether the characteristic parameters of the hand-written handwriting match the preset characteristic parameters, in case of matching, determining that the hand-written handwriting is successfully verified, and in case of unmatching, determining that the hand-written handwriting fails to be verified. The invention also brings forward a handwriting verification method. By using the technical scheme provided by the invention, original handwriting of hand-written input can be verified, and the verification demands of client groups demanding hand-written signing approval are satisfied.

The invention provides an elevator over-speed governor checking device capable of remotely monitoring. The checking device comprises a driving speed adjusting module, a first action detecting module, a second action detecting module, a data remote sending module, a data remote receiving module, a data processing module, a first speed detecting module, a second speed detecting module and a displaying module, wherein the second speed detecting module is used for being compared with the first speed detecting module to remotely monitor the state of maintenance unit personnel over detecting of an elevator over-speed governor. According to the checking device, checking parameters of the over-speed governor can be remotely obtained, and through the checking parameters, the state of the maintenance unit personnel can be remotely monitored to detect the elevator over-speed governor so as to ensure that the maintenance unit personnel complete checking for the elevator over-speed governor on a site. The invention further provides a monitoring and checking method of the checking device, the method can reduce the time consumed by the institution personnel of the both sides in the checking process to improve the working efficiency of the personnel of the both sides and can meet the national checking requirements, so that the accuracy of qualified checking data of the elevator over-speed governor is ensured.

The invention provides a test bench for a disassembly and assembly process of a nuclear power reactor coolant pump. The test bench comprises a baseplate, a profiling motor stator shell fixed to the baseplate, a profiling stator flange fixed to the upper end of the profiling motor stator shell, a profiling stator cover used for covering an inner cavity and connected to the upper end of the profiling stator flange, a profiling reactor coolant pump shell provided with a pump shell inner cavity and supported by the profiling stator cover, and a Canopy sealing ring located at the peripheral side ofthe profiling stator cover; the upper and lower ends of the Canopy sealing ring are welded with the profiling reactor coolant pump shell and the profiling stator flange separately, and the profilingreactor coolant pump shell and the profiling stator flange are removably connected by a plurality of profiling main bolts; and the lower end of each profiling main bolt is connected to a profiling main nut. The test bench provided by the application is applicable for the actual maintenance environment and the disassembly and assembly process of the nuclear power reactor coolant pump properly, andthe requirements for installation, debugging and verification of special tools in the disassembly and assembly process of the nuclear power reactor coolant pump can be met; and good basic conditions are provided for the development and debugging of the special tools for the disassembly and assembly of the nuclear power reactor coolant pump.

The invention discloses a Beidou GPS-based time synchronization system verification device and method, which overcome the problem of low defect elimination success rate of a transformer substation time synchronization system caused by no synchronous clock source equipment in the prior art, and comprises a Beidou GPS positioning time service module, a B code receiving, transmitting and photoelectric conversion module, a liquid crystal display module and a lithium battery charging and boosting power supply module.The four modules are connected with one another. Beidou GPS time service performance testing, time synchronization input signal verification testing, time synchronization signal output testing, time service success rate calculation and verification success rate calculation are carried out, the time service success rate reaches 100%, the time service performance is excellent, and the requirement for the time service performance of a transformer substation can be met, and the defect elimination success rate is obviously improved.

The invention discloses a Beidou GPS-based time synchronization system verification device, which overcomes the problem of low fault elimination success rate of a transformer substation time synchronization system caused by no synchronous clock source equipment in the prior art, and comprises a Beidou GPS positioning time service module, a B code receiving, transmitting and photoelectric conversion module, a liquid crystal display module and a lithium battery charging and boosting power supply module. The four modules are connected with one another, and an input and output interface is arranged outside the device and comprises optical IRIG-B code input, optical IRIG-B code output, electric IRIG-B code input, electric IRIG-B code output, PPS code input, PPS code output and NTP output. The device comprises an alarm, a satellite locking and a synchronization state. The time service success rate reaches 100%, the time service performance is excellent, and the time service performance requirement of the transformer substation can be met; qualified time synchronization signals in four formats can be sent, and the time synchronization output signal requirements of a transformer substation in various time synchronization modes can be met. The defect elimination success rate is high.

The embodiment of the invention discloses a request verification method and a related device. The method provided by the embodiment of the invention comprises the following steps: a server firstly receiving a request of a client; the server obtaining a request standard according to the request; wherein the request specification comprises a first user-defined expression; wherein the first user-defined expression is used for representing a verification rule, and the first user-defined expression can be compiled according to actual requirements, so that the server verifies the request according to the first user-defined expression, and not only can the verification requirement of a single field be met, but also other verification requirements such as an incidence relation among the fields canbe met.

The invention provides a zero magnetic flux compensation-based multi-range current converter and a compensation method. A primary winding, a first secondary winding and an nth secondary winding are all wound on a power conversion magnetic core and an error detection magnetic core; a compensation winding is also wound on the power conversion magnetic core; a zero magnetic flux detection winding is also wound on the error detection magnetic core; the first secondary winding and the nth secondary winding are connected with an output range switch unit; and a zero magnetic flux compensation unit is connected between the compensation winding and the zero magnetic flux detection winding. The invention provides a multi-range winding design structure based on parallel connection of dual magnetic cores, thereby enlarging the output current range, and meeting the detection requirement of a gateway meter of different current specifications; and due to arrangement of a gain adjustment unit in the zero magnetic flux compensation unit, output loop gains of different ranges of winding are balanced, so that it is ensured that the current conversion system outputs stably and the output accuracy in different range states is consistent.

A portable in-situ density sensor calibration instrument comprises a box body, a calibration disc clamp and a calibration instrument body, wherein the calibration disc clamp and the calibration instrument body are arranged in the box body. The calibration disc clamp mainly consists of an upper beam, a lower beam, vertical rods, a calibration disc, a lead screw, a handle and a clamping part. The specific connecting mode is as follows: the upper beam and the lower beams are vertically arranged in a horizontal spaced mode and are supported through vertical rods on two sides to form a support; the upper beam penetrates through the lead screw in a threaded matching mode, and the upper end of the lead screw is connected with the handle, and the lower end of the lead screw is connected with the clamp. The calibration disc is fixed to the lower beam, and a seal ring and a calibration air interface connected with an air supply pipeline of the calibration instrument body are respectively arranged on a disc body. The portable in-situ density sensor calibration instrument is better in pressure stabilization effect, can completely meet the density sensor calibration requirement in a site. On the aspect of application, an air source and a power source are not needed during system calibration, calibration air is automatically supplied, calibration and usage under the conditions of the site are facilitated, a system is automatically matched to form a whole, and equipment, storage and carrying are facilitated.

The invention discloses a pressure transmitter calibration console which comprises a pressure transmission module used for regulating and controlling pressure, a transmitter module used for parameter measurement, and a test module used for installing a test piece, and is characterized in that the test module is connected with the pressure transmission module through a pressure transmission pipeline, and the transmitter module and the pressure transmission module are connected with a control module; the pressure transmission signal and the signal fed back by the transmitter are obtained by the control module. According to the scheme, the pressure transmission module outputs pressure to the test module through the pressure transmission pipeline, the pressure transmission signal of the pressure transmission module is continuously compared with the signal fed back by the transmitter module through the control module, and a test piece of the test module is calibrated. Calibration of a plurality of test pieces can be realized, the measuring range is large, intelligent control is realized, and the calibration efficiency is improved.

The invention provides a limping-home control method for an automatic double-clutch transmission. The limping-home control method includes acquiring car speed signals, input rotation speed signals of clutches, rotation speed signals of an inner input shaft, rotation speed signals of an outer input shaft, rotation speed signals of an output shaft and position signals of a gearshift lever; checking whether a current gear is matched or not according to speed ratio of the car speed signals, the input rotation speed signals of the clutches and the current gear are lost completely; if yes, keeping running of the current gear, and if not, switching in odd-even gears. A car can be kept normal running without pulling over under the condition of loss of the position signals of the lever, and running safety is improved.

Provided are a detection device and detection method for a direct current electric energy meter. A 32-bit microprocessor of the device is respectively connected with a field programmable gate array (FPGA), a data storage module, a communication module, a display module, a key input module and an alarm protection module; the FPGA is respectively connected with the 32-bit microprocessor, a control module, an electric energy pulse module, a temperature compensation time scale module and a data collecting module; the control module is respectively connected with a six-way voltage driving module, a current driving module and a feedback module; an output module is connected with the six-way voltage driving module, the current driving module and the feedback module; and the feedback module is respectively connected with the output module, the control module and the data collecting module. The short-term stability of the device is superior to 0.005% / min, an alternating current ripple wave is extremely small, the adjusting fineness is as high as 5ppm, and the device is extremely high in reliability and can continuously work for 24h.

The invention discloses a quick connection switching device for pressure transmitter calibration, which comprises a sealing connection base, a multi-way switching gas core and an end driving mechanism. The sealing connection base includes a tube body and a through tube The seat body of the body, the interior of the tube body is hollow, the seat body is connected and fixed with the pressure transmitter, and the air source channel connected with the air inlet of the pressure transmitter is opened on the seat body; the multi-way switching gas core Installed in the pipe body, the multi-channel switching gas core is a variable-diameter pipe section structure, including a small-diameter pipe section and a large-diameter pipe section separated by a partition ring. The outer wall of the small-diameter pipe section and the inner wall of the sealed connection base pipe body constitute the production gas cavity; the large-diameter pipe section is provided with a calibration air chamber connected to the calibration gas path, and the calibration air chamber is provided with a radial air outlet; the end driving mechanism is connected to the outer end of the large-diameter pipe section. The beneficial effects of the present invention are: the present invention realizes quick connection and switching between the production gas circuit and the calibration gas circuit, and can quickly complete the calibration work of the pressure transmitter.

The invention provides a bacterial interception test device. The bacterial interception test device comprises a stock solution tank body, a first peristaltic pump, a valve, a filtering passage and a circulating tank body, wherein the stock solution tank body, the first peristaltic pump, the filtering passage and the circulating tank body are sequentially connected through pipelines; the bottom of the circulating tank body is connected between the first peristaltic pump and the filtering passage through a pipeline to form a communicating loop; the valve is arranged on the pipeline. The bacterial interception test device can be used for evaluating and verifying the filtering and sterilizing efficiency under the production process condition, can realize independent verification of each passage without mutual interference, is more accurate in filtering volume, can realize circulating filtration, and overcomes the defects in the prior art.

The invention provides a current transformer verification system, and relates to the technical field of transformer verification. The standard current transformer and the tested current transformer are connected in series, the secondary current of the standard current transformer and the secondary current of the tested current transformer are connected to the transformer calibrator through wires, and the control unit controls the switching of the transformer load box according to an input load switching instruction. A load required by the test is provided for the tested current transformer. Meanwhile, heat dissipation devices are additionally arranged in the standard current transformer, the transformer calibrator and the transformer load box, so that the calibration system can continuously carry out transformer error test and overload capacity test work in 150% In for a long time, the calibration requirement of the 150% In continuous working current transformer is met, the automation degree is high, manual intervention is not needed, and safety and efficiency are realized.

The invention discloses a system and a method for checking a multifunctional electronic transformer. The checking system comprises an analogue transformer checking system, a digital transformer checking system, two digital multimeters Agilent 3458A, a function generator Agilent 33250, a signal synchronization device, a GPIB-USB and independent-developed supporting software. According to the system and the method for checking the multifunctional electronic transformer, no extra built-in modules are needed, the ratio error of the checking precision is up to 0.01%, the phase error is up to 0.3' and the industrial checking requirement can be completely satisfied.

The invention discloses a CCGA device reinforcing method. An epoxy glass cloth layer laminate is used to produce a reinforcing adhesive sheet having a cuboid-shaped structure, and after assembly of a CCGA device, the epoxy adhesive is used to glue the reinforcing adhesive sheet on the periphery of the CCGA device, and then is solidified to complete the reinforcing. A spot weld cracking failure problem caused by temperature and mechanical stress is solved, and a verification condition requirement is satisfied.

The invention discloses a detection tool for a three-coordinate measuring machine, and the detection tool comprises a quadrangular frustum pyramid, each side edge of the quadrangular frustum pyramid is provided with a side edge ball body, the side edge ball bodies are at least disposed in two horizontal planes, and the top of the quadrangular frustum pyramid is provided with a first ball body passing through the vertex of the quadrangular frustum pyramid, and a second ball body connected with the first ball body in the vertical direction. The radius extension lines, parallel to the side edges,of the side edge spheres on the side edges intersect with the vertexes. By applying the device, the side edge spheres in the same horizontal plane are detected or scanned to measure all point positions of equipment in the plane, and the point positions in the vertical direction are measured by detecting or scanning the first sphere and the second sphere; point location measurement in the space direction is achieved by detecting or scanning the side edge spheres in the two horizontal planes. The tool and the standard component are simple in structure, different types of tool clamps are not needed when the tool and the standard component are placed, the verification requirements of different types of three-coordinate measuring machines can be met, and the universality is good.

The invention discloses an improved pressure calibrator, which comprises a base and a connecting pipe. Two sets of supporting rods are symmetrically welded to the lower end of the base; two sets of fixing clamps are fixedly mounted on the upper end face of the base; and a handshake pump is arranged on the position, penetrating into the two sets of fixing clamps, above the base. According to the improved pressure calibrator, a reverse piston is arranged; under the condition that only a forward piston exists originally, during pressurizing, due to the inner cavity volume limit of the handshake pump, the high pressure is difficult to generate, and the pressure required for calibrating cannot be reached; but after the reverse piston is additionally mounted, a horn opening of the reverse pistoncan be opened in a fallback state to prevent air from entering the hydraulic oil side of the handshake pump, due to the fact that no air exists in a pump body, the pressurization performance of a pressure gauge calibrating pump is greatly improved, and the pressure can be increased to 60 MPa through one time of pressurization; and the negative pressure can be generated, the calibrating requirements of a negative pressure meter are met, the improved pressure calibrator is suitable for different working conditions, and better using prospects are brought.

The invention relates to the technical field of heat exchangers, in particular to a waste heat recovery boiler suitable for a maleic anhydride device, the waste heat recovery boiler comprises an outer pressure-bearing cylinder, an inner guide cylinder and a plurality of heat exchange tube sets, the outer pressure-bearing cylinder is cylindrical, and the inner guide cylinder is arranged in the outer pressure-bearing cylinder in a penetrating mode; a heat exchange tube bundle formed by main body sections of a plurality of heat exchange tube groups is covered by the inner guide cylinder, and the radial section of the inner guide cylinder is a polygon matched with the heat exchange tube bundle; compared with the prior art, starting from an original square single outer shell with poor pressure bearing capacity, the original outer shell is divided into the outer pressure bearing cylinder and the inner guide cylinder according to the working condition with large pressure bearing capacity, and the inner wall of the inner guide cylinder restrains and guides the flow direction of heat exchange fluid, so that the inner guide cylinder makes full contact with the heat exchange pipe set, the shell pass space is fully utilized, and the heat exchange efficiency is improved; and the circular outer pressure-bearing cylinder mainly bears fluid pressure, so that the flow guide effect of a polygonal cylinder body is kept, pressure can be borne in a circular form, and the advantages of high pressure-bearing capacity and good flow guide effect are achieved.

The invention relates to the field of instrument verification and particularly relates to a vibration device. The vibration device comprises a cam, a power module, a driven part and a reset module, wherein the power module is used for driving the cam to rotate around the rotation center of the cam; the reset module is arranged on the driven part, and the reset module is used for resetting the driven part; when the cam rotates, the driven piece can do reciprocating motion in the linear direction. The vibration device is advantaged in that the vibration device is applied to calibration of the pressure gauge, the pressure gauge can be installed on the driven member through the calibration joint, and the vibration device enables the driven member to vibrate to drive the pressure gauge to vibrate through the cooperation of the parts, and thereby a pointer of the pressure gauge to be calibrated is made to overcome the internal mechanical friction and mechanical resistance, and therefore, tapping is replaced, the measurement error is reduced, and working efficiency is improved.

The invention relates to the technical field of thermotechnical detection equipment, and particularly discloses a thermocouple calibrating device. The device is used for calibrating a thermocouple to be tested and comprises a temperature adjusting module, a measuring module and a bearing module used for bearing the temperature adjusting module and the measuring module. The temperature adjusting module comprises at least two verification furnaces, a temperature control unit for adjusting the temperature of the verification furnaces and a conversion unit capable of enabling the temperature control unit to be in communication connection with any verification furnace, and when the verification furnaces are connected with the temperature control input port, the temperature of the verification furnaces is the same as that of the thermocouple to be tested; the measurement module comprises a low-thermal-potential scanning switch selectively connected with the measurement output port and a voltage measurement unit used for measuring the thermocouple to be measured; the bearing module can move in a horizontal plane and comprises lifting platforms capable of ascending and descending in the vertical direction, the number of the lifting platforms is the same as that of the verification furnaces, and each lifting platform bears one verification furnace. According to the device, the verification efficiency can be improved in a mode of alternately using the verification furnaces, and the working flexibility is improved by means of structural optimization.

The invention relates to an electronic transformer verifying device. The electronic transformer verifying device aims to solve the problems that the conventional transformer verifying device lacks a corresponding digital interface and cannot verify an electronic transformer. The electronic transformer verifying device comprises a standard electronic transformer group, a standard merging unit, a signal conditioning box, an industrial computer, a merging unit interface, an analog quantity input interface and an optical pulse expansion interface. The signal conditioning box comprises a No.1 optical fiber transceiver, a No.2 optical fiber transceiver, an over-voltage protection circuit, a data acquisition card and an optical pulse expansion circuit; the industrial computer is provided with a No.1 electric ethernet port, a No.2 electric ethernet port and a peripheral component interconnect (PCI) bus interface; and the standard electronic transformer group can consist of a single standard electronic transformer or a plurality of standard electronic transformers according to different application occasions. The electronic transformer verifying device is applied in the field of verification of transformers for electric power systems.