64results about How to "The test process is stable and reliable" patented technology

The invention discloses a carbon fiber gas cylinder detection line and a carbon fiber gas cylinder detection method. The detection line includes, in a front-to-back arrangement manner, a water pressure test apparatus, a water pressure auxiliary test apparatus and an air tightness test apparatus. The water pressure test apparatus includes a test rack, a test operation bench, a pressurizing apparatus, a test case installed on the test rack, and test trolleys for stably placing a plurality of to-be-tested gas cylinders. The water pressure auxiliary test apparatus includes a gas cylinder fixture, a transporting trolley, and a gas cylinder water-pouring-away and drying device. The air tightness test apparatus includes an air tightness detection apparatus and a second air supply apparatus for supplying air to the to-be-tested gas cylinders. The air tightness test apparatus is in a cabinet structure or a ground trough structure. The detection method includes the steps of 1) water pressure test; 2) water pouring-away and drying treatment; and 3) air tightness test. The detection line is reasonable in design and simple in operations, is good in use effects, and can easily and quickly complete water pressure test and air tightness test for a plurality of carbon fiber gas cylinders.

The invention relates to a calibration method of a quartz crystal microbalance, belonging to the technical field of aeronautics and astronautics. The method comprises depositing heavy metal gold at the surface of the quartz crystal microbalance by using a magnetron sputtering device; injecting an inert gas in a vacuum system; observing and recording the vacuum degree of a vacuum chamber; monitoring and storing the frequency value and the temperature value of the quartz crystal microbalance; monitoring and storing the S polarized light current and P polarized light current of ellipsometry system, and finally closing the testing system, closing the gas charging system of inert gas, and closing the vacuum system. The method improves the sensibility of precision measurement of the quartz crystal microbalance; the test procedure is stable and reliable, and has good replicability; an ellipsometry film thickness measuring apparatus is used for providing direct film thickness measuring method for the quartz crystal microbalance; and the method has high measuring accuracy, stable test procedure and good replicability.

The invention provides an electric propulsion spacecraft plume parameter detection apparatus. The apparatus comprises a vacuum cabin observation window, a vacuum cabin, two electric thruster multi-parameter diagnosis devices, an electric thruster, a movable support, a computer, an ignition control cabinet, a vacuum air exhaust system, and an air supply bottle, the radial cross section of a first electric thruster multi-parameter diagnosis device vertical to an installing plate is parallel to the radial cross section of the electric thruster vertical to the installing plate, and the distance between the two radial cross sections is greater than 100 cm. According to the apparatus, the electric propulsion spacecraft plasma plume parameter distribution and spacecraft on-orbit performance degradation condition in the simulated space environment condition can be estimated via the measurement and collection of pollution data in the electric thruster multi-parameter diagnosis devices, guidance and basis are provided for the development of the electric propulsion spacecraft and the estimation of the lifetime, the electric propulsion spacecraft can work safely and reliably in the space, the test process is stable and reliable, and the reproducibility is good.

The invention discloses a testing device and a testing method for the dust removing effect of a dust suppressant and a dust preventive. The testing device comprises a data collecting and processing device, a simulated roadway device, a dust generation device, a dust preventive spraying device and a dust removing device. The testing method comprises the following steps: 1, preparing dust which is not soaked in a dust suppressant solution; 2, preparing dust which is soaked in the dust suppressant solution; 3, measuring the air dust concentration in a simulated roadway; 4, conveying the dust which is not soaked in the dust suppressant solution and measuring the dust concentration in the simulated roadway; 5, starting the dust preventive spraying device while conveying the dust which is not soaked in the dust suppressant solution, and measuring the dust concentration in the simulated roadway; 6, conveying the dust which is soaked in the dust suppressant solution and measuring the dust concentration in the simulated roadway; 7, starting the dust preventive spraying device while conveying the dust which is soaked in the dust suppressant solution, and measuring the dust concentration in the simulated roadway; 8, processing data and obtaining the dust removing efficiency. The testing device and the testing method, disclosed by the invention, are capable of testing the dust removing effect of the dust suppressant and the dust preventive.

The invention discloses a carbon fiber cylinder detection system and method. The detection system comprises a hydraulic pressure tester, a hydraulic pressure assisted tester and a tightness tester; the hydraulic pressure tester comprises a test rack, a test operating table, a pressurizing device, a test case mounted on the test rack and a test cart for multiple cylinders to be tested to be placed steadily on; the hydraulic pressure assisted tester comprises a cylinder clamp, a conveying cart and a cylinder emptying and drying apparatus; the tightness tester comprises a tightness test unit and a second gas supply device supplying gas to multiple cylinders to be tested, and the tightness test unit is a cabinet type tightness test unit or a trough type tightness test unit; the method comprises the steps: first, hydraulic pressure testing; second, emptying and drying treatment; third, tightness testing. This system is reasonable in design and simple to operate and effective to use and enables the hydraulic pressure test and tightness test process of multiple carbon fiber cylinders to be finished simply and quickly.

The invention discloses a tensioning device suitable for an underground construction defective anchor rod. The tensioning device comprises a hollow oil cylinder, an oil cylinder fixing arm, an angle adjusting device, a round table support, a drawing connecting rod and a hydraulic power source. The drawing angle of the drawing connecting rod can be changed through the angle adjusting device so thatthe drawing connecting rod and the construction defective anchor rod can be in a coaxial position, then the drawing connecting rod is connected to the defective anchor rod through a connecting sleeve, and after the position of the angle adjusting device is fixed, radial tension detection is performed on the construction defective anchor rod through the extension of the hollow oil cylinder; and after the detection is completed, the defective anchor rod can be fastened by using a tray and bolts under the condition that the defective anchor rod is under high pre-tightening force. The tensioningdevice can perform a tensile test on the construction defective anchor rod coaxially, thereby effectively detecting the anchoring force of the construction defective anchor rod and applying high pre-tightening force to the construction defective anchor rod.

The invention discloses a turbofan engine inlet part birdshot impacting device, and belongs to the technical field of aviation equipment. The turbofan engine inlet part birdshot impacting device comprises an air storage tank, a locking air cylinder, a cabin sliding valve, a birdshot filling launching bin, a birdshot launching pipe, a birdshot supporting rod, a birdshot inlet, a sliding valve groove, a birdshot inlet sliding valve and a birdshot shell stripper, wherein the inlet of the birdshot launching pipe is connected with the birdshot filling launching bin; the cabin sliding valve and the birdshot supporting rod are arranged in the birdshot filling launching bin, and the locking air cylinder is arranged outside the birdshot filling launching bin and is connected with the cabin sliding valve together; the birdshot inlet and the sliding valve groove are both arranged on the same side wall of the birdshot filling launching bin, and the birdshot shell stripper and the outlet of the birdshot launching pipe are connected together. The turbofan engine inlet part birdshot impacting device provided by the invention has the advantages that impact force is generated for a birdshot by controlling the high pressure gas, the birdshot rapidly flies to a target, and a birdshot impacting effect is realized; and a test device is simple, a part is easy to purchase or process. The whole device is easy to implement, and the cost is low.

The invention discloses an aviation hydraulic oil viscosity attenuation control index test system and a test method. The test system comprises a monitoring device and a test platform for the mountingof a tested hydraulic pump, and the test platform comprises an oil tank used for supplying oil to the tested hydraulic pump, a heating and cooling module used for controlling the temperature of the return oil of the tested hydraulic pump, a filter used for filtering the return oil of the tested hydraulic pump and connected to the oil tank, and an on-line oil viscosity sensor used for detecting theviscosity of the return oil of the tested hydraulic pump. The test method comprises the following steps: (1) before testing, the tested hydraulic pump is mounted, and whether the tested hydraulic pump is normal or not is judged; (2) a viscosity reference value and a metallic element content reference value are detected; (3) a viscosity attenuation control index is detected. The aviation hydraulicoil viscosity attenuation control index test system has the advantages of simple structure, reasonable design, easiness in use and operation and good use effect, and can easily and quickly carry outthe testing of an aviation hydraulic oil viscosity attenuation control index, and moreover, the testing precision is higher.

The present invention relates to a high-voltage direct-current power transmission commutation transient low-voltage test method and a circuit thereof. The circuit comprises a high-voltage voltage source, a low-voltage current source and auxiliary control valves Da5, Da4 and Da3. In the test method, according to the triggering timing of the auxiliary control valves Da5, Da4 and Da3, a high backward recovery voltage and a low forward triggering voltage can be applied over a test valve Vt when a forward voltage is established on the test valve Vt, such that voltage stress characteristics in a direct-current power transmission commutation transient operation process can be truly reflected, and the test requirements can be satisfied by controlling the triggering of the auxiliary control valves by a control system, requiring no additional auxiliary equipment in the test circuit and eliminating the need to consider the heat radiation of resistors. The method and circuit provided by the invention are simple to implement, and can increase the test efficiency.

The invention discloses an electronic control type aimable ice shot impact testing device and belongs to the technical field of aeronautical facilities. The electronic control type aimable ice shot impact testing device comprises an air storage tank, an electronic control valve, a sighting device, an ice shot filling and launching compartment, an ice shot launching tube, an ice shot supporting rod, an ice shot inlet, a sliding valve groove, an ice shot inlet sliding valve and a hand lever, wherein the inlet of the ice shot launching tube is connected with the ice shot filling and launching compartment, the ice shot supporting rod is arranged in the ice shot filling and launching compartment, the sighting device is arranged on the ice shot filling and launching compartment, the ice shot inlet and the sliding valve groove are formed in the same lateral wall of the ice shot filling and launching compartment, the ice shot inlet sliding valve is arranged in the sliding valve groove, and the hand lever is fixedly connected with the ice shot inlet sliding valve. By means of the electronic control type aimable ice shot impact testing device, impact force is applied on ice shots by controlling high-pressure air, and therefore, the ice shots fly to a target quickly to achieve ice shot impact effect. The electronic control type aimable ice shot impact testing device is simple, parts are purchased or manufactured easily, the whole electronic control type aimable ice shot impact testing device can be implemented easily, and cost is low.

The present invention discloses a carbon fiber gas cylinder hydraulic pressure test device and a hydraulic pressure test method, the carbon fiber gas cylinder hydraulic pressure test device comprises a hydraulic pressure test unit for testing deformation and pressure bearing capacity of a plurality of to-be-tested gas cylinders, and a hydraulic pressure auxiliary test unit located in front side of the hydraulic pressure test unit; the hydraulic pressure test unit comprises a test rack, a test console, a pressurization unit, a test case and a test vehicle; the hydraulic pressure auxiliary test unit comprises a gas cylinder fixture, a conveying vehicle and a gas cylinder water-pouring and drying treatment unit for performing water pouring and drying treatment on the to-be-tested gas cylinders, and a horizontal placement platform for horizontal placement of the gas cylinder fixture is arranged on the upper part of the conveying vehicle; and the method comprises the following steps: 1, hydraulic pressure test; and 2, water pouring and drying treatment. The carbon fiber gas cylinder hydraulic pressure test device is reasonable in design, easy to operate and good in use effect, a simultaneous testing process of the deformation and pressure bearing capacity of the plurality of gas cylinders can be completed easily, and the water pouring and drying treatment of the plurality of gas cylinders after testing can be performed easily.

The invention provides an on-site automatic verification system for a water quality monitor, comprising an on-site automatic verification platform of the water quality monitor, an automatic sampling device and an automatic dilution device. The on-site automatic verification system unifies detection standards, so as to improve the automation and informationization of detection on such measuring instruments, greatly improve the efficiency of measurement and detection, and improve the detection quality; the system lowers the quality requirements on detection personnel, reduces the labor intensityof the detection personnel, reduces the consumption of reagents for detection, lowers the quality risks brought by manual solution preparation and detection on site, and better fits the general detection on such measuring instruments; the system has the advantages of wide adaptability, high intelligence, high comprehensive efficiency, etc., can better meet the requirements of existing technical specifications, and can be popularized to metrology technology institutions in various provinces and cities in China.

The invention relates to an electric energy gauge detection device and in particular relates to an electric energy gauge seal testing machine, aiming at solving the problems that testing equipment fortesting strength, a destructive force, a sealing force and an unsealing force of a newly developed electric energy gauge seal is lacked at present. The electric energy gauge seal testing machine is characterized by comprising an upper PC (Personal Computer) and a lower testing cabinet machine, wherein an industrial control computer is arranged at the upper part of a cabinet body; a mounting frameis arranged in a middle working region; four servo electric cylinders are arranged on the mounting frame and clamps are correspondingly mounted. The electric energy gauge seal testing machine is usedfor testing the sealing force, the unsealing force, the destructive force and the reliability of buckle type and threading type seals respectively. The electric energy gauge seal testing machine hasthe advantages that a test is accurately simulated; a whole testing process is safe and reliable and data is accurate and can be displayed through a graph; the device has the advantages of stability in operation and high testing efficiency and provides powerful guarantees for quality detection of seal products.