58results about How to "Comprehensive performance testing" patented technology

The invention discloses a locomotive traction converter test apparatus and a method thereof. The apparatus comprises: a power assessment power supply, a charging and discharging loop, a secondary filter circuit, a locomotive simulation power supply, an impedance load, a traction converter, a cooling system, an inverter impedance load and a measurement and control system. The power assessment power supply is connected with the charging and discharging loop. The charging and discharging loop is connected with the secondary filter circuit. The charging and discharging loop and the secondary filter circuit are connected with the traction converter respectively. An output terminal of the locomotive simulation power supply is connected with the impedance load and the traction converter respectively. The output terminal of the traction converter is connected with the inverter impedance load. The traction converter is connected with the cooling system and the measurement and control system respectively. The test method comprises: a chopper loop test, a light load joint debugging test and a power assessment test of the traction converter. By using the technical scheme in the invention, the comprehensive performance test can be performed to the locomotive traction converter. A structure is simple. An operation is simple. And environmental protection and energy saving can be achieved.

The invention relates to a method for treatment of organophosphorus pesticide wastewater by immobilized microorganisms. Mainly composed of the processes of strain domestication, carrier preparation, bacterium adsorption and wastewater treatment, the method is characterized by: adsorbing domesticated fungus Aspergillus niger to activated carbon with a diameter of 5-8mml, then putting the prepared activated carbon containing saturated Aspergillus niger into wastewater, with the putting amount of activated carbon accounting for 1% of the wastewater when the CODcr (chemical oxygen demand) of each liter of sewage reaches 200-10000, controlling the temperature at 530DEG C, and performing static immersion for 1-6 days. By using the method to treat the organophosphorus pesticide wastewater, the degradation rate can reach up to 98%.

The invention discloses vacuum generator performance detection equipment which comprises a testing stand and an air source, wherein a flow stabilizer device, an air inlet flow control device, an air outlet flow control device, a pressure testing device and a vacuum testing unit are arranged on the testing stand; an inlet of the flow stabilizer device is connected with an air source; the flow stabilizer device is provided with two paths of outlets, wherein one path of outlet is connected with the air inlet flow control device, and the other path of outlet is connected with the pressure testing device; the vacuum testing unit is connected between the air inlet flow control device and the air outlet flow control device, and the air inlet flow control device is connected with the pressure testing device; the vacuum testing unit comprises a vacuum generator; a control terminal is arranged on the testing stand, and connected with the air inlet flow control device, the air outlet flow control device and the pressure testing device. A vacuum generator performance detection method is simple to operate; by adopting the vacuum generator performance detection method, the detection on vacuum degree, air consumption, maximal suction flow and vacuum degree-suction flow characteristics of the vacuum generator can be realized.

The invention discloses an overall performance testing rack of a numerical control ultrasonic cutting sound main shaft. The overall performance testing rack comprises a base. Perpendicular linear guide rails, an artificial load device and a radial movement base are installed on the base. The perpendicular linear guide rails are in sliding fit with the ultrasonic cutting sound main shaft. The artificial load device is provided with two force application rods. The two force application rods are located at the axial position and the radial position of a cutting tool nose of the ultrasonic cutting sound main shaft respectively and used for applying artificial loads to the cutting tool nose. The radial movement base is provided with a testing probe which can move towards the ultrasonic cutting sound main shaft in a radial mode and rotate. According to the overall performance testing rack of the numerical control ultrasonic cutting sound main shaft, the testing site and various costs can be reduced, the measurement on different parameters under the same installation condition is provided, the testing errors under different installation conditions are reduced, the testing effect and the testing efficiency on the performance of the ultrasonic cutting sound main shaft are improved, and test bases are provided for the further perfection and the further improvement of the performance of the ultrasonic cutting sound main shaft.

The invention provides a vacuum ultraviolet photomultiplier testing device, which comprises a vacuum system, a testing clamp, a light source system, a data acquisition and control system and a computer system, wherein the vacuum system provides vacuum degree requirements for testing, a vacuum ultraviolet photomultiplier is arranged in the testing clamp and is integrally arranged in a vacuum cavity, the light source system is used for providing a test light source of the vacuum ultraviolet photomultiplier, generating an ultraviolet light source and irradiating the ultraviolet light source to the cathode surface of the ultraviolet photomultiplier positioned in the vacuum cavity, and the data acquisition and control system is used for controlling test parameters and test configuration of thesystem, reading a system test data value, transmitting the system test data value to the computer system and analyzing and processing data. Through relative testing, dark current, cathode radiation sensitivity, quantum efficiency, anode radiation sensitivity and gain parameters of a vacuum ultraviolet photomultiplier are tested, and a performance testing and evaluating system of the vacuum ultraviolet photomultiplier is perfected.

The invention discloses a catalyst performance evaluation device. The device comprises a heat exchanger, a heater and a reactor, wherein the heat exchanger has a preheating side and a heat recovery side, the preheating side is connected with an air inlet pipe, the heat recovery side is connected with an air outlet pipe, a first pipeline is connected between the preheating side and the heater, a second pipeline is connected between the heater and the reactor, a third pipeline is connected between the reactor and the heat recovery side, the reactor comprises a cylinder body, a catalyst bin is arranged in the cylinder body and used for containing a catalyst, and a flange plate cylinder cover is detachably arranged at an upper end of the cylinder body. The device is advantaged in that universality is good, performance of various catalysts can be evaluated, the interval time for replacing the catalysts is short, heating energy consumption is low, working efficiency is high, and economic performance is good.

The invention discloses a microcomputer servo control bridge expansion joint performance tester which comprises a base, a first moving beam and a second moving beam; the first moving beam and the second moving beam are arranged on the base; a first drive device used for driving the first moving beam to move in a width direction of the base is arranged between the first moving beam and the base; asecond drive device used for driving the second moving beam to move in a length direction of the base and a third drive device used for driving the second moving beam to move in the length direction of the base are arranged between the second moving beam and the base; and the upper side of each of the first moving beam and the second moving beam is provided with a friction tester and a pressure tester. The microcomputer servo control bridge expansion joint performance tester provided by the invention can perform comprehensive performance detection on the bridge expansion joint performance, isconvenient to operate and can ensure the accuracy of detection data of the bridge expansion joint performance.

The invention relates to an air compressor test bench, in particular to a modularized air compressor test bench, and mainly solves the technical problems that the test bench is complex to assemble and is troublesome when required functional accessories are assembled, the accuracy is poor when each parameter is detected, test parameters are inaccurate because air flow leaks easily when the air pressure is high and the like in the prior art. The modularized air compressor test bench comprises a machine frame (1); a main bench surface (2) is arranged on the machine frame (1); supporting posts (3) which can fix the air compressor are fixed to the main bench surface; more than two air cylinders are arranged at the lower part of the machine frame; each air cylinder is connected with a module valve plate (5); each module valve plate is connected with the air compressor through a hose (6); and a three-phase four-wire socket (7) is arranged on the machine frame.

The invention discloses a lead powder processing system for a lead storage battery positive grid production workshop. The lead powder processing system comprises a controller, a database, a concentration detection module, a concentration analysis module, a timing module, an aluminum powder processing module and an alarm module. The concentration detection module is used for monitoring aluminum powder data in a lead storage battery positive grid production workshop in real time; the concentration analysis module receives and analyzes the aluminum powder data; the controller receives the aluminum powder data and an analysis result of the aluminum powder data, and carries out comparative analysis on the aluminum powder data and preset aluminum powder data in a database; the alarm module receives an instruction sent by the controller to generate alarm sound, and the aluminum powder processing module receives the control instruction and then carries out aluminum powder processing work. According to the design, the lead storage battery positive grid production workshop is divided into a plurality of small areas, so that the detection of the lead powder concentration detection device in the lead storage battery positive grid production workshop is more comprehensive, and the problem that the lead powder concentration detection is generally carried out on the production workshop in a large range in the prior art is solved.

The invention relates to a comprehensive detection device for ordnance. The device comprises a PC104 control subsystem and a functional circuit board, wherein the PC104 control subsystem comprises a central processing unit (CPU) module and a digital input/output (I/O) module; and the functional circuit board comprises a relay circuit, a rocket pulse filtering shaping circuit, an aerial rocket pulse generating circuit and an aerial cannon pulse generating circuit, and is connected with the digital I/O module and the CPU module. Compared with the prior art, the device has the advantages that: performance is tested comprehensively, the device is easy to operate during detection, and the like.

The present invention provides a testing device for an aircraft brake controller. The testing device comprises a power supply module for supplying power to the testing device, multiple tested unit module brackets used for removably installing multiple tested unit modules, an acquisition control module used for collecting and controlling signals from the multiple tested unit modules and a sensor in an aircraft, and a conditioning module used for switching and conditioning signals transmitted between the acquisition control module and the multiple tested unit modules and the sensor, wherein the power supply module and the multiple tested unit module brackets are installed in a first box, the conditioning module and the acquisition control module are installed in a second box body, the first box body and the second box body are stacked in use, and the modules installed in the first box body and the second box body are connected through a connection device.

The invention discloses a paper absorption comprehensive performance testing method which is characterized by comprising the following steps of fixing a burette filled with a povidone-iodine solution on a workbench, vertically dropping a certain amount of povidone-iodine solution at a fixed height, dropping the povidone-iodine solution onto to-be-detected paper placed on the workbench, shooting and recording the apparent diffusion absorption conditions of the povidone-iodine solution droplets of all brands of paper at the same time interval, after complete absorption, dropping a certain amount of solution at the same position until complete absorption is not achieved, sucking away the surface solution with absorbent paper, weighing the increased weight, and achieving comprehensive performance testing. The reddish-brown povidone-iodine solution is adopted, so that the apparent absorption and diffusion conditions of the solution on the paper can be more easily and visually sensed, the absorption uniformity is quickly reflected and serves as the most important performance index, and the absorption performance of the paper is comprehensively considered from the aspects of the absorption uniformity, the absorption rate, the absorption multiplying power and the like.

The invention discloses a serial test method and a test tool. The test method comprises the following steps: storing environment configuration of a machine and restarting the machine; executing a toolfor testing the CPU after the machine is restarted; after executing the tool for testing the CPU, executing the tool for testing the hard disk; after executing the tool for testing the hard disk, executing the tool for testing the network card; restarting the machine and executing a tool for testing the memory bandwidth; and restarting the machine, and executing a tool for testing the memory delay.