32results about How to "Check reliability" patented technology

A simulation device of alimentary canal consists of simulated oral cavity, simulated oesophagus, simulated stomach, simulated small intestine, simulated big intestine, simulated anus and its switch, motor actuators set separately in said simulated organs, acid liquor storage chamber, buffer liquor storage chamber, digestive enzyme storage chamber, alkali liquor storage chamber, flow rate controllers set separately in said chambers, transducers of pH value and pressure as well as enzyme. It is featured as using central control unit to control said actuators and to set various parameters of complete alimentary canal.

The invention belongs to the field of intelligent electric apparatus, particularly relates to a system and method for detecting and verifying a monitoring device of insulator polluted current. The invention provides the system and method for detecting and verifying the monitoring device of the insulator polluted current. The method comprises the following steps: a to-be-detected device is subjected to the current calibration in a standard laboratory environment through a calibration system of the to-be-detected device; a polluted environment is simulated through an analog system of an experiment environment; and polluted current curves of the to-be-detected device and a standard polluted current measuring transducer are compared to further judge whether the to-be-detected device can actually reflect the practical situation of the polluted current or not. According to the invention, the detection and verification for the monitoring device of the insulator polluted current can be realized; and meanwhile, the stability of the monitoring device of the insulator polluted current can be assessed through simulating the polluted environment for a long time.

The invention relates to preparation method and application of pressure-sensitive temporary bonding glue and belongs to the technical field of microelectronic packaging. A slide glass wafer and a device wafer are bonded in a temporary mode by adopting the pressure-sensitive temporary bonding glue, and microcapsules are broken by utilizing temporary bonding pressure, so that color of the peripheral space changes. If a certain area is hollow, the microcapsules in the area are not broken, the color of the peripheral space does not change, and the aim of directly observing the temporary bonding quality after bonding removal is achieved. According to the method, a low-cost temporary bonding process can be greatly realized, and the reliability of the temporary bonding process is rapidly checked.

The invention provides an experimental device for ground expansion of a rocket-borne electronic extensible rod. The device is used for simulating control of expansion of the electronic extensible rod in the separation of a hood of a sounding rocket on the ground. The device comprises a base with a sliding way, an extension spring, a screw, an electromagnet, a circular ring, a cylindrical pin and electrical pure iron, wherein the base is fixed on a rotary platform; a screw hole seat and a pin hole seat are arranged at left and right ends of the base in opposite direction; the lower part of thescrew hole seat is fixed with one end of the extension spring; a threaded hole for mounting the screw is formed on the upper part of the screw hole seat; the electromagnet is embedded into the lower part of the pin hole seat; the upper part of the pin hole seat is a limiting part; a pair of small holes is formed on the limiting part correspondingly; the circular ring is placed between the pair ofsmall holes and fixed by inserting the cylindrical pin; the electrical pure iron is shaped like a Chinese character 'Tu'; a circular hole through which the cylindrical pin penetrates is processed on the upper half part of the electrical pure iron; the lower half part of the electrical pure iron is used for fixing the other end of the extension spring; and the bottom of the electrical pure iron isnested in the sliding way on the base.

The invention provides an arrow-loaded electric field stretching rod ground unfolding experimental device. The arrow-loaded electric field stretching rod ground unfolding experimental device comprises a rotating platform and a clamping releasing mechanism and is characterized by further comprising a microgravity simulation mechanism. The microgravity simulation mechanism further comprises a central pillar, steel wire ropes, a nylon rope and clamping hoops which are fixed on each section of an electric field stretching rod, wherein one end of each steel wire rope is pulled in a slant mode to be fixed on the central pillar, and the other end of each steel wire rope is connected with the clamping hoop of each section of the electric field stretching rod. One end of the nylon rope is connected with the clamping releasing mechanism, and the other end of the nylon rope is fixed on a pressing plate on the top of the electric field stretching rod. The central pillar comprises a plurality of sections of hollow cylinders, wherein flanges are arranged at two ends of each hollow cylinder. Every two sections of the cylinders are fixedly connected through a bolt, and each flange of each section of the cylinder is provided with a cylinder hole used for connecting one steel wire rope. One end of each steel wire rope is pulled in the slant mode to be fixed on the central pillar, and the other end of each steel wire rope is connected with the clamping hoop of each section of the stretching rod of the electric field stretching rod.

The invention relates to a deep thermal shock testing device of a heavy-duty engine. The deep thermal shock testing device comprises the engine, and is characterized in that a water outlet of the engine is connected with a third port of a second switching valve, a second port of the second switching valve is connected with a hot water tank, a first port of the second switching valve is connected with a cold water tank and a cold expansion water tank, and the cold expansion water tank is connected with a thermal expansion water tank which is connected with the second port of the second switching valve; a water inlet of the engine is connected with a third port of a first switching valve, a second port of the first switching valve is connected with a hot water tank, a first port of the first switching valve is connected with a third port of a three-way proportional valve, a first port of the three-way proportional valve is connected with the cold water tank, and a second port of the three-way proportional valve is connected with the first port of the second switching valve; the hot water tank is connected with a hot water heat exchanger and a steam heat exchanger, and the cold water tank is connected with a refrigerating unit. The deep thermal shock testing device can improve the number of alternations of unit time, and verify reliability of the engine within a short time.

The invention belongs to the field of the wind resistance of an engineering structure, and particularly relates to a wind-induced internal pressure testing method oriented to a punched flexible building. The invention provides the wind-induced internal pressure testing method oriented to the punched flexible building. A building model is subjected to internal volume correction, a regulation deviceis reasonably selected, so that the problem of experiment test errors brought by the reduced scale effect of the punched flexible building model is solved, an internal pressure resonance frequency test deviation caused by model reduced scale is reduced, the test distortion of internal pressure response is lowered, the reliability of a model experiment result is improved, the pulse response of aninternal wind load after the flexible building is punched can be accurately measured, and a dereferencing basis is provided for engineering wind-resistant design.

The invention relates to a device for testing the start/stop service life of a turbocharger, especially relates to a gas-storage type device for testing the start/stop service life of the turbocharger and belongs to the technical field of power machines. The device comprises an air tank, an air pump, a combustion chamber and corresponding pipe adjusting valves. The device employs a self-circulation operation mode. In multiple start/stop circulation tests, the device employs the air stored in a last self-circulation operation process for start again. The device is scientific and reasonable in test bench scheme, is easy to implement, is stable and reliable, and is high in value for the improvement of the reliability of a turbocharger.

The invention discloses a CT indirect secondary through-flow method for a generator set. The method comprises the following steps: (1), carrying out preparing for inspection work before a unit CT secondary loop through-flow test; turning on a power supply of a relay protection tester device after all early-stage work preparation is completed; adjusting the output rated current value to be 50 percent of the rated current value; recording and collecting current values of all equipment connected with the group of CT secondary circuits; checking whether the error between the secondary current display value and the measured value of each piece of equipment and the 50% of the rated current added by the relay protection tester is within an allowable range or not; adjusting the relay protection tester to enable the output value of the relay protection tester to reach a rated value, recording and collecting all equipment current values of the group of CT secondary circuits, judging whether an error between the measured CT secondary rated current value and the added CT secondary rated current value is within an allowable range or not, and ending the CT secondary through-flow experiment. Therefore, the time and labor are saved; meanwhile, the situation that a tester is exposed in a complex field environment for a long time is avoided, and work safety is improved.

A time-controlled intermittent life test method based on junction temperature real-time correction comprises the following steps that a sample is selected for a pre-test, temperature rise time of a junction temperature variable quantity, meeting a test requirement, of a specific device under driving power is determined, and the time when the junction temperature is reduced to an initial temperature is recorded; the temperature rise time measured by the pre-test is used as a temperature rise period of a cycle period, constant driving power is continuously applied in the temperature rise period,after the temperature rise period is finished, narrow pulse excitation is used for measuring an end point junction temperature of the device, and the temperature drop time measured by the pre-test isused as the temperature drop period for cooling the device; and after the temperature drop period is finished, if the junction temperature does not reach the initial temperature, a secondary temperature drop period is continued, wherein the next cycle period is equal to the sum of the time of the temperature drop period and the time of the secondary temperature drop period of the previous cycle period. In the invention, an intermittent working state of a component can be simulated more strictly, and an intermittent life test requirement can be met more accurately.

The invention provides a vibration test system and test method for full-missile vibration in a rotating state of a rotating missile, and relates to the technical field of missile mechanical environment tests, the vibration test system comprises a vibration device, a fixing device and a rotating device, the fixing device fixes the rotating missile on the vibration device, and the tail end of the rotating missile is connected with the rotating device; the rotating missile achieves application of vibration excitation through the vibration device, achieves balance of missile gravity through the fixing device and achieves application of rotating motion through the rotating device. According to the invention, the vibration dynamics environment experienced by the rotating missile in the flight process can be simulated more truly, and the reliability and vibration environment adaptability of the rotating missile can be fully examined. A non-contact laser sensor is adopted, measurement and control of vibration of the whole missile in the rotating state of the missile are achieved, and the problem that a traditional sensor cannot measure vibration under rotating motion is solved.

The invention discloses an electronic intelligent equipment detection system. The invention belongs to the technical field of power detection, and the system comprises electric equipment; an adjustable power supply which is used for supplying power to electric equipment; an environmental condition regulation and control box which is used for providing adjustable and controllable environmental conditions for electric equipment; electric meter equipment which is used for detecting the electricity consumption of the electric equipment; a power detector A which is used for detecting the input endof a to-be-detected module of electric equipment; a power detector B which is used for detecting the output end of the to-be-detected module of the electric equipment; a controller which is connectedwith the adjustable power supply, the electric meter equipment, the environmental condition regulation and control box, the power detector A and the power detector B; and a control terminal which iselectrically connected with the controller. The system is suitable for detecting the safety, the energy saving performance and the reliability of various different types of electronic appliances, is good in universality, can promote the realization of an automatic test system, greatly improves the test efficiency, facilitates the unification of test standards, and scientifically, simply, conveniently and effectively evaluates and diagnoses the performance of an electric appliance system.