45results about How to "Efficient online detection" patented technology

The invention relates to a valve inner leakage testing simulating device and a gas valve inner leakage rate acoustic emission diagnosis method thereof. The valve inner leakage testing simulating device comprises a buffer tank. One end of the buffer tank is connected with an air compressor, and the other end is connected with a flowmeter. The buffer tank is provided with a pressure gauge. A testing valve is arranged between the buffer tank and the flowmeter. The valve inner leakage testing simulating device and the gas valve inner leakage rate acoustic emission diagnosis method thereof can settle a problem of testing gas valve inner leakage and realize valve inner leakage testing and evaluation in a petrochemical industry; the valve inner leakage testing simulating device is used for performing valve inner leakage acoustic emission tests; acoustic emission parameters are acquired; a valve inner leakage rate evaluation formula model is established by means of a formula; and a database is applied for performing fitting, thereby realizing valve inner leakage rate diagnosis. The valve inner leakage testing simulating device and the gas valve inner leakage rate acoustic emission diagnosis method thereof have advantages of effectively performing online testing on valve inner leakage, preventing economic loss caused by work stoppage, ensuring stable pressure in tests and realizing estimation on the valve inner leakage rate.

The invention provides an online moisture detection device for a bulk material. The device is characterized in that: the device includes an annular channel in the form of a closed loop, the annular channel is divided into a first section (L1), a second section (L2), a third section (L3), and a fourth section (L4); the annular channel is composed of an annular cover body (A) and an annular bottom plate (B), the annular bottom plate (B) is connected with a driving device (C) through a support bar (B1), multiple through holes (B2) are arranged along the circumference of the annular bottom plate (B) and multiple charging containers (2) are correspondingly placed on these through holes (B2), wherein the first section (L1) is a charging area, the second section (L2) is a microwave drying area, the third section (L3) is a detection area, and the fourth section (L4) is a discharge area. The moisture of different types of the bulk material can be detected in real time, rapidly, online and accurately, the measurement precision can reach the moisture measurement precision of a manual sampling, drying and weighting method, and the existing problem is solved in a large degree.

The invention discloses a scanning leakage detection efficient negative-pressure exhaust hood which comprises a box body. The hollow portion of the box body is internally provided with an efficient filter. The two sides of the efficient filter are fixed through fixing pressing plates. Sealing frames are arranged above the positions where the efficient filter is connected with the fixing pressing plates. A gas collection box and a transmission box are sequentially installed on one sealing frame from the box wall to the interior of the box body. A support is fixedly arranged on the other sealing frame. A linear scanning device and a sampling pipe are installed between the transmission box and the support. One end of the sampling pipe is connected with the linear scanning device, and the other end of the sampling pipe is communicated with the gas collection box. According to the scanning leakage detection efficient negative-pressure exhaust hood, noxious gas can be efficiently filtered out and exhausted inside a working area, noxious substances are prevented from polluting environment and an exhaust pipeline, and safety of environment and safety of an experimenter are protected; the linear scanning leakage detection mode is adopted to conduct in-situ leakage detection on the efficient filter, the mode of synchronous disinfection with a laboratory is adopted to conduct sterilization, and the scanning leakage detection efficient negative-pressure exhaust hood has the advantages of being little in investment, protecting environment, conducting efficient exhaust and the like.

The invention provides a photoelectric performance online detection system for an LED bulb lamp. The system has the advantages of fast detection, convenience, high efficiency and low cost. The systemcomprises an illumination intensity acquisition module, a voltage acquisition module, a current acquisition module, a main control module and a display module; the illumination intensity acquisition module is used for acquiring the illumination intensity of the LED bulb lamp; the voltage acquisition module is used for acquiring the voltage of the LED bulb lamp; the current acquisition module is used for acquiring the current of the LED bulb lamp; the main control module is connected with the illumination intensity acquisition module, the voltage acquisition module and the current acquisition module; the main control module is used for obtaining the active power and power factor of the LED bulb lamp according to the voltage and current of the LED bulb lamp, and judging whether the photoelectric performance of the LED bulb lamp is qualified according to the illumination intensity, active power and power factor of the LED bulb lamp; and the display module is connected with the main control module and is used for displaying the illumination intensity, active power and power factor of the LED bulb lamp.

The invention discloses an FPGA (Field Programmable Gate Array) single-particle overturning soft error detection method based on redundancy interconnection resources. The FPGA single-particle overturning soft error detection method comprises the following steps: step 1, establishing a connection relation in interconnection resources in an FPGA; step 2, not using a logic unit and directly inserting a comparing circuit into an FPGA device; step 3, finding a copying line for the existing interconnection resources; and step 4, combining the copying line and the comparing circuit to carry out dual backup comparison on the FPGA based on the redundancy interconnection resources so as to realize error detection. By the aid of the FPGA single-particle overturning soft error detection method, a phenomenon that more redundancy exists in the interconnection resources of the design is sufficiently designed, and an efficient redundancy interconnection resource search algorithm is explored; an FPGA structure is simply modified so that the efficient online detection on single-particle overturning soft errors is realized.

The invention discloses a surface waviness and roughness online measuring instrument, and the measuring instrument comprises a measuring head and a drive device. The measuring head is a confocal displacement meter measuring head, and the drive device is a voice coil motor. A confocal displacement meter is driven by a drive platform of the voice coil motor to operate. The measuring instrument comprises a connection board, and the connection board enables the confocal displacement meter and the voice coil motor to be installed above a detection position of production equipment. According to the invention, the measuring instrument achieves non-contact measurement, does not scrape the surface of a sample, and can measure a flexible or wet sample. The moving speed of the voice coil motor is high, and the measuring instrument just needs one second to measure one waviness value, and can achieve the high-efficiency online detection. The whole measuring instrument is small and exquisite, and can be conveniently installed on each production line. In addition, compared with a conventional lead screw or line guide rail, the voice coil motor is more stable, and can reduce the impact on the measurement data from a scanning device.

The invention discloses a method for detecting soft errors of FPGA single event flipping based on redundant interconnection resources, which comprises the following steps: Step 1, establishing the connection relationship in FPGA internal interconnection resources; Step 2, not using logic units, directly Insert a comparison circuit into the FPGA device; Step 3, find a copy line for the existing interconnection resources; Step 4, combine the copy line with the comparison circuit to complete the double-backup comparison of the FPGA based on redundant interconnection resources, and realize error detection. The invention develops an efficient search algorithm for redundant interconnection resources by making full use of the phenomenon that there are many redundancy in the interconnection resources in the design, and realizes the high-efficiency online detection of single-event flipping soft errors by means of a simple modification of the FPGA structure. detection.

The invention relates to the field of engine lubricating oil monitoring, in particular to a coaxial capacitance sensor and an online monitoring and diagnosis method for engine lubricating oil abrasive particles. The coaxial capacitive sensor includes a sensor lubricating oil inlet and a sensor lubricating oil outlet; the sensor lubricating oil inlet and the sensor lubricating oil outlet communicate with the coaxial capacitive sensor respectively; the coaxial capacitive sensor is equipped with a central bearing, an electrode support insulating matrix and an electrode plate The interior of the coaxial capacitive sensor is divided into multiple detection subspaces by several electrode supporting insulating bases and the central bearing, and the electrode plates are respectively attached to the electrode supporting insulating bases. The coaxial capacitive sensor provided by the present invention can be arranged inside the lubricating oil pipeline, which avoids the influence of environmental factors on the test results, can efficiently detect the characteristics of lubricating oil abrasive particles online, and realizes online monitoring and diagnosis of lubricating oil abrasive particles in the entire watershed, reflecting The severity of the surface wear state of the friction pair of the rotating parts of the engine ensures the safe and reliable operation of the engine.

The invention discloses a scanning leakage detection efficient negative-pressure exhaust hood which comprises a box body. The hollow portion of the box body is internally provided with an efficient filter. The two sides of the efficient filter are fixed through fixing pressing plates. Sealing frames are arranged above the positions where the efficient filter is connected with the fixing pressing plates. A gas collection box and a transmission box are sequentially installed on one sealing frame from the box wall to the interior of the box body. A support is fixedly arranged on the other sealing frame. A linear scanning device and a sampling pipe are installed between the transmission box and the support. One end of the sampling pipe is connected with the linear scanning device, and the other end of the sampling pipe is communicated with the gas collection box. According to the scanning leakage detection efficient negative-pressure exhaust hood, noxious gas can be efficiently filtered out and exhausted inside a working area, noxious substances are prevented from polluting environment and an exhaust pipeline, and safety of environment and safety of an experimenter are protected; the linear scanning leakage detection mode is adopted to conduct in-situ leakage detection on the efficient filter, the mode of synchronous disinfection with a laboratory is adopted to conduct sterilization, and the scanning leakage detection efficient negative-pressure exhaust hood has the advantages of being little in investment, protecting environment, conducting efficient exhaust and the like.

The invention discloses online detection equipment for a liquid in a sewage pool, wherein the online detection equipment comprises the sewage pool, and a mounting plate is arranged at the bottom end in the sewage pool. According to the online detection equipment, through cooperative use of a floating plate, a detection rod, a first limiting rod, a second limiting rod, a sliding sleeve, a first transverse plate, a second transverse plate, a third transverse plate, an inductor, a rubber pad and an alarm, online detection of the liquid in the sewage pool is facilitated, and the phenomenon of idle running of a pump body is prevented; when the liquid level in the sewage tank is low, the floating plate can drive the detection rod to move downwards, so that the rubber pad at the bottom end of the third transverse plate on the surface of the detection rod is in contact with the inductor at the top of the first transverse plate, then the inductor transmits a signal to a control panel, the control panel stops working of the pump body, and then an alarm is controlled to sound to play a warning role; and by means of the mode, the liquid level in the sewage pool can be effectively detected on line, and the phenomenon of idle running of the pump body is prevented.

The invention provides an online detection device for flexible package printed matters, and mainly relates to the technical field of printed matter detection equipment. The online detection device for the flexible package printed matter comprises a front conveying device, a rear conveying device and a detection box body, the front conveying device and the rear conveying device are arranged on the two sides of the detection box body respectively, a through cavity is formed in the detection box body, and the sides, close to the detection box body, of the front conveying device and the rear conveying device extend into the through cavity; the online detection equipment is fixedly mounted at the bottom in the detection box body, the suction seat is movably mounted in the detection box body, the negative pressure fan is mounted at the top of the detection box body, a plurality of flattening rollers are mounted in the suction seat in an embedded manner, position sensors are arranged on the periphery of the bottom of the suction seat, and a plurality of negative pressure suction holes are formed in the bottom of the suction seat. The online detection device has the beneficial effects that online detection can be quickly and efficiently carried out on the flexible package printed matter, so that the printing quality of the flexible package printed matter is ensured, and the production cost investment is reduced.

The invention relates to a valve inner leakage testing simulating device and a gas valve inner leakage rate acoustic emission diagnosis method thereof. The valve inner leakage testing simulating device comprises a buffer tank. One end of the buffer tank is connected with an air compressor, and the other end is connected with a flowmeter. The buffer tank is provided with a pressure gauge. A testing valve is arranged between the buffer tank and the flowmeter. The valve inner leakage testing simulating device and the gas valve inner leakage rate acoustic emission diagnosis method thereof can settle a problem of testing gas valve inner leakage and realize valve inner leakage testing and evaluation in a petrochemical industry; the valve inner leakage testing simulating device is used for performing valve inner leakage acoustic emission tests; acoustic emission parameters are acquired; a valve inner leakage rate evaluation formula model is established by means of a formula; and a database is applied for performing fitting, thereby realizing valve inner leakage rate diagnosis. The valve inner leakage testing simulating device and the gas valve inner leakage rate acoustic emission diagnosis method thereof have advantages of effectively performing online testing on valve inner leakage, preventing economic loss caused by work stoppage, ensuring stable pressure in tests and realizing estimation on the valve inner leakage rate.