181results about How to "Monitor stability" patented technology

The invention discloses a deformation monitoring method for shallow-buried excavation tunnel construction. The deformation monitoring method comprises the following steps: 1) digging a tunnel: digging a tunnel cavity for a constructed shallow-buried excavation tunnel from back to front, primarily supporting the dug tunnel cavity from back to front during the digging process, and forming a primary supporting structure, wherein the primary supporting structure comprises a plurality of grating steel frames for supporting the tunnel cavity from back to front, and each grating steel frame is composed of an arch supporting steel frame and left and right vertical supporting steel frames; 2) arranging monitoring points: arranging multiple sets of supporting state monitoring points on the primary supporting structure of the constructed tunnel cavity from back to front during the digging process, and meanwhile, arranging a plurality of ground surface settlement monitoring points in a construction area of the constructed shallow-buried excavation tunnel from back to front; 3) monitoring the deformation. The method provided by the invention has the advantages of simple steps, reasonable design, convenience in construction, good use effect and capability of effectively monitoring the stability of the constructed shallow-buried excavation tunnel and the ground surface settlement.

A method for detecting absorption loss of optical element and surface hot deformation is disclosed, characterized in that: it adopts the union technique of laser calorimeter and surface thermal lens to detect the absolute value of absorption loss of optical element and the surface hot deformation at the same time, it can monitor the real time change of the absorption loss of optical element during the course of laser irradiation. The value of absorption loss is obtained by measuring the change of temperature of the optical element during the course of laser irradiation, and the surface hot deformation is obtained by detecting the amplitude of variation of detecting laser beam intensity caused by surface hot deformation which is caused by absorbing the energy of heating laser beam, the real time change of the absorption loss and the stability of optical elements could be detected by monitoring the real time change of central intensity of the detecting laser beam.

The invention relates to a non-destructive testing method for the natural frequency of transverse vibration of a non-fully grouted anchor bolt in coal mine, which comprises the testing steps that: an exposed end of the anchor bolt is connected with a sensor connecting device and a sensor; nominal exciting force is applied to the sensor connecting device via a small hammer so that the anchor bolt generates transverse vibration; the vibration acceleration of the anchor bolt is acquired by the sensor and an acceleration signal is transmitted to a tester; the tester converts the received acceleration analog signal into an acceleration digital signal and stores the acceleration digital signal; simultaneously, the acquired signal is subjected to spectrum analysis to obtain the natural frequency of the anchoring system of the tested anchor bolt, and the resultant natural frequency of the transverse vibration of the anchor bolt is closely correlated with the axial stress of the anchor bolt and the bonding state between the anchoring section of the anchor bolt and coal. The device disclosed by the invention is simple and convenient in installation and connection, short in testing time required and capable of implementing large-area testing for the anchor bolt in a tunnel and monitoring the stability of the overall tunnel.

The invention discloses a method for detecting a mixed acid solution in the manufacturing process of a polycrystalline silicon solar cell. The method is used for detecting a mixed acid system which consists of hydrofluoric acid, nitric acid and fluorosilicic acid. The method comprises the following steps of: detecting the total acid concentration of the solution by using an acid-base neutralization method; heating and boiling the solution which is subjected to acid-base neutralization, decomposing fluorosilicate to generate hydrogen ions, determining the content of the hydrogen ions by alkali liquor titration, and thus obtaining the concentration of the fluorosilicic acid by calculation; detecting the concentration of the nitric acid in the mixed acid solution by using an oxidation-reduction titration method; and subtracting the concentration of the fluorosilicic acid and the concentration of the nitric acid from the total acid concentration, and thus obtaining the concentration of the hydrofluoric acid. The method is simple in flow, easy to operate and low in economic investment and can be applied to long-term monitoring of a texturing process and an etching process in the production process of the polycrystalline silicon solar cell and stability of equipment, manpower resources are saved, high-end equipment is eliminated, detection accuracy can be over 95 percent.

The invention discloses a near-infrared-spectrum-based tobacco leaf part feature extraction and discrimination method, which comprises: providing K tobacco leaf samples, collecting the spectrums of the samples through a near-infrared spectrometer, and pre-treating; sampling N times, and calculating the correlation p between each wavenumber point and the part in the sample and the ratio d of the distance in the same part to the distance between the parts in each wavenumber point sample; recording the correlation matrix P and the distance matrix D after the n sampling, and calculating the average values of P and D and the standard deviations Pm, Ps, Dm and Ds; determining the wavenumber points meeting threshold conditions by giving thresholds t1, t2 and t3; combining the wavenumber points meeting threshold conditions as feature points, and modeling by using the spectrums of the feature points and the part labels; and collecting the near-infrared spectrum of the sample to be determined, predicting by using the established model, and determining the tobacco leaf part of the sample to be determined. According to the present invention, the modeling is performed by screening the feature wavenumber points related to the tobacco leaf part in the spectrum so as to identify the part of the tobacco leaf in the same production place.

The invention discloses a sandbox based two-dimensional code detection method. The sandbox based two-dimensional code detection method comprises the following steps of inputting a two-dimensional code to a simulation sandbox for running when a scanning tool is scanning the two-dimensional code; acquiring correlation behavior information of the two-dimensional code, and judging whether the correlation behavior information is possessed with a threat, if yes, giving out a threat level; monitoring the stability of the simulation sandbox in real time, and giving out an abnormal level if abnormality occurs; and comprehensively judging whether the two-dimensional code is malicious or not according to the thread level and the abnormal level, if yes, intercepting the two-dimensional code and generating a behavior report, otherwise allowing a terminal to open the two-dimensional code. The invention also discloses a sandbox based two-dimensional code detection system. With the technical scheme disclosed by the invention, the limitation of static detection can be made up, and a better detection effect can be achieved.

The invention discloses a probe height adjusting method including the following steps of lifting a lifting platform to a point testing position, wherein the lifting platform is used for bearing a to-be-tested object; adjusting two probes of two probe devices in order to enable the two probes to be contacted with the to-be-tested object; using two deformation sensing loops in order to enable two sensing elements on two moment arms of the two probe devices to generate a first observed value change and a second observed value change according to deformation amounts of the two moment arms, thereby providing target values of the two probes. Therefore, the approximate target values can be obtained when the two probes are contacted with the to-be-tested object. With the probe height adjusting method, the target values of the probes (probe force gram weight) can be obtained according to the deformation amounts of the moment arms, and the basis for probe height adjustment can be provided. The probe height adjusting method can improve the accuracy of probe force measurement, is high in sensitivity, prevents the probes of the probe devices from damaging the to-be-tested object, and reduces the probe wear. The invention also discloses a probe position monitoring method.

The invention discloses a biomass low-temperature pre-burning low-volatile inferior coal low-NOx combustion device. The combustion device utilizes biomass to substitute high-price high-quality fuel gas as pre-burning fuel, the biomass is partially combusted in a combustion chamber so as to provide heat for the combustion chamber, and the combustion temperature is maintained at about 800 DEG C. The biomass is pyrolyzed at the temperature of about 800 DEG C, part of the volatile component generated by virtue of the pyrolysis is combusted, and part of the volatile component enters a hearth to be combusted. The low-volatile inferior coal is heated to 650 to 800 DEG C in a preheating chamber, so that the combustion stability of the low-volatile inferior coal in the hearth can be improved. By adopting the combustion device, the emission amount of CO2 and NOx can be reduced, and contribution can be made for alleviating the global warming and reduction of acid rain, photochemical smog and haze caused by the greenhouse effect. Finally, the combustion performance of the low-volatile inferior coal can be improved, the combustion efficiency can be improved, the contribution is made for the increasing of the economic benefit, and the saving of the energy for enterprises.

The invention discloses a delay connection installation method for an outrigger of a super high-rise building in a steel frame-core tube structure. A constructed super high-rise building is in a steel frame-core tube structure which comprises a core cylinder and a peripheral frame located on the outside of the core tube, and a core cylinder in a outrigger reinforcing layer is connected with a frame column through an outrigger; the outrigger comprises an upper chord member, a lower chord member and a plurality of web members; when the outrigger in the outrigger reinforcing layer is installed, a delay connection method is used for installation, the installation process comprises the steps that I, temporary connection of the chord members; II vertical deformation monitoring: strain of the core tube and the frame column which are connected by the two chord members in the vertical direction is monitored; III, chord member stress release and fixed connection; IV, web member installation. According to the delay connection installation method for the outrigger of the super high-rise building in the steel frame-core tube structure, the steps are simple, the design is reasonable, the operation is easy and convenient, the use effect is good, and the problem that early failure of the outrigger is caused due to vertical deformation difference of the frame column and the core tube can be effectively solved.

The invention discloses a probe point measurement system, comprising a lifting table, at least one probe apparatus, at least one deformation sensing loop, a contact sensing loop, a test loop, a first switch and a second switch. The lifting table is used for carrying a to-be-tested object. The probe apparatus is positioned above the lifting table. The probe apparatus comprising a moment arm, a probe and at least one sensing element. One end of the moment arm is connected to the probe. The sensing element is on the moment arm. When the moment arm is deformed by bearing a force, the sensing element generates observed value change along the deformation of the moment arm. The deformation sensing loop is electrically connected with the sensing element and used for receiving the observed value change. The contact sensing loop comprises a power supply and a probe pressure sensing unit. The probe pressure sensing unit is electrically connected with the power supply, and has a pressure increasing element and a probe connection line. The probe spot measurement system shortens the time for detecting the to-be-tested object through the contact sensing loop, and ensures that the probe abuts against the to-be-tested object at a preset probe pressure through the deformation sensing loop.

The invention discloses a pressure dispersion-type anchorage cable stress state monitor, relating to an anchorage cable stress state monitor, where one end of a steel strand is connected with a bearing body and the other end in turn runs through anchor backing plate and extension hole of extension board to connect with anchorage cable meter and anchor plate correspondingly, where the anchorage cable meter measures the stress state of the bearing body; the data tester is connected with the anchorage cable meter and displays the stress state of the bearing body; the number of bearing bodies is 2-5 according to the prestress amplitude designed for the pressure dispersion-type anchorage cable. And the invention can be applied to monitor the man-made side slopes or coasts reinforced by pressure dispersion-type anchorage cable in the engineering of speedways, railways, hydropower stations, etc.

The invention discloses a sewage treatment method based on supernatant reflux of a flocculation settling tank, and belongs to the technical field of wastewater treatment. The sewage treatment method based on the supernatant reflux of the flocculation settling tank disclosed by the invention comprises the following steps that firstly, a flocculant is added in a mixing tank to carry out a mixed reaction, water flows into the flocculation settling tank after the mixed reaction, a coagulant aid is added to carry out a flocculation reaction, then supernatants subjected to a flocculation precipitation reaction flow back to the mixing tank and the flocculation settling tank respectively, concentrations of residual agents in the supernatants are fully utilized to carry out a reaction, and the supernatants are discharged externally or enter into the next treatment unit for carrying out a treatment after sewage treatment reaches standards. The sewage treatment method disclosed by the invention lowers a load impact resulted from water quality and quantity fluctuations, and avoids excessive pollutant concentrations caused by insufficient agent dosage, and further reduces agent adding amount in a sewage treatment process and excessive agent concentrations of effluent water to effectively lower the operating cost of the sewage treatment.

The invention relates to a quality control method of polygonum multiflorum-Alpinia oxyphylla capsules, in particular to a fingerprint spectrum detection method of polygonum multiflorum-Alpinia oxyphylla capsules, and belongs to the technical field of medicine analysis. The fingerprint spectrum detection method includes the steps of firstly, preparing a control solution; secondly, preparing an internal standard solution; thirdly, preparing a test solution; fourthly, using high performance liquid chromatography to perform analysis and detection. The fingerprint spectrum detection method has the advantages that an internal standard peak is innovatively quantitatively added into the complex fingerprint spectrum of traditional Chinese medicine preparations so as to calibrate the chromatographic peaks in the preparations, and the method is accurate, simple, high in sensitivity and good in reproducibility; the method can comprehensively monitor the quality of semi-finished and finished products and the stability of production process.

The invention belongs to the technical field of hydrodynamic test simulation systems. The invention discloses an aerodynamic lift resistance testing device with a controllable and adjustable pitch angle of an airplane model. The device comprises: a trailer lift axle 1, a first monitorable locking structure 2, a front main dragging rod 3, an electric lifter 4, a rope 5, a multi-degree-of-freedom adjusting reinforcing rod 6, an axle locking structure 7, a vertical linear displacement sensor 8, a pitching posture quantitative adjusting structure 9, a test model 10, a gyroscope 11, a qualitative steel plate 12, a horizontal line displacement sensor 13 and a rigid rod structure 14. Inertia and centroid debugging accuracy of a hydrodynamic test model can be improved, and model test accuracy is improved.

The invention provides a three-electrode solid electrolyte electrochemical reactor, which comprises a membrane electrode assembly, a flow field plate, a sealing gasket and a reference electrode, wherein the membrane electrode assembly comprises an active area and an inactive area capable of generating electrochemical reaction; the inactive area is located on the periphery of the active area; the inactive area is an exposed area of a solid electrolyte membrane; the flow field plate comprises a cathode flow field plate and an anode flow field plate; the membrane electrode assembly is clamped between the cathode flow field plate and the anode flow field plate; the sealing gasket is arranged between the membrane electrode assembly and the flow field plate and is located in the inactive area of the membrane electrode assembly; an access point of the reference electrode is arranged outside the sealing gasket; and ion connection is kept with the inactive area through an electrolyte solution or under an assist of the solid electrolyte membrane. The electrochemical reactor provided by the invention can start or cancel monitoring by the reference electrode at any time, does not affect the working states of an anode and a cathode and does not affect the structure and the air-tightness of the reactor.

The invention provides an establishing method of the fingerprint of a detoxifying and kidney harmonizing capsule, and an application of the fingerprint. The establishing method comprises the following steps: 1, dissolving the content of the detoxifying and kidney harmonizing capsule in an 70%(V) aqueous ethanol solution to prepare a sample solution having a concentration of 5mg/ml; and 2, detecting the sample solution by adopting a high performance liquid chromatograph-tandem mass spectrometry to obtain a total ionic chromatogram, wherein a high performance liquid chromatograph adopts a C18 reversed-phase bonded silica gel chromatography column, a mobile phase 1 and a mobile phase 2 are used for gradient elution, an electro-spray detector is used for detection, the mobile phase 1 is a 0.1%(V) aqueous solution of formic acid, and the mobile phase 2 is a 0.1%(V) formic acid-acetonitrile solution. The method has the advantages of high detection accuracy and reliability when the method is used for obtaining the fingerprint, and the obtained fingerprint can rapidly, simply, comprehensively and effectively display the effective components of the detoxifying and kidney harmonizing capsule and the contents of the effective components.

The invention relates to a method for detecting an adhesive force of an offset ink of a laser cigarette case. The method comprises the following steps: sticking an adhesive tape to a to-be-detected ink printing surface of a sample; utilizing a peeling test machine for peeling the adhesive tape; coating a semitransparent millimeter ruling paper on the peeled part; respectively counting the number of grids occupied by an ink layer and that occupied by the peeled ink layer and calculating the adhesive force of the ink; judging if the adhesive force of the ink is qualified. The test method is simple and convenient; the test method is non-destructive; sampling and detection are only required following the production; the detection parameters can be adjusted and the magnitude of the adhesive force of the ink on the surface of the laser paper can be simulated according to the practical production condition; the detection for the adhesive force of the offset ink of the laser cigarette case ismore accurate, efficient and stable.

The invention discloses a quality control method of a traditional Chinese medicine compound preparation for treating osteoporosis. The quality control method comprises the following steps: (1) by taking eucommia ulmoides as a contrast medicinal material and taking pinoresinol diglucoside and geniposidic acid as comparison products, carrying out qualitative identification on eucommia ulmoides in the traditional Chinese medicine compound preparation by adopting a thin-layer chromatography; (2) by taking radix achyranthis bidentatae as a contrast medicinal material and taking beta-ecdysterone as a comparison product, carrying out qualitative identification on radix achyranthis bidentatae in the traditional Chinese medicine compound preparation by adopting the thin-layer chromatography; (3) by taking wolfberry fruits as contrast medicinal materials, carrying out qualitative identification on the wolfberry fruits in the traditional Chinese medicine compound preparation by adopting the thin-layer chromatography; and (4) determining the content of three active components (or index components) including epimedium glucoside, gentiopicroside and loganin acid in the traditional Chinese medicine compound preparation by adopting a high performance liquid chromatography. According to the quality control method, the quality of the traditional Chinese medicine compound preparation can be controlled very well, and the stability of a product production process is monitored; and the quality of the traditional Chinese medicine compound preparation is stable, uniform and controllable.

The invention belongs to the technical field of precise measuring and the field of optical engineering, and particularly relates to a high-accuracy laser large-working-distance auto-collimation device and method. The device is composed of a laser source, a collimation lens, a reflector and a feedback imaging system. The method includes the steps that the reflector is adjusted, a reflected laser beam returns to the center of the image surface of the feedback imaging system, and then angle changes of the surface of a measured object are obtained through an angle deflection measuring device on the reflector. As the reflector is additionally arranged on a traditional auto-collimation angle measuring system, the problem that as lasers reflected by a measured object deviate from the measuring system, measuring can not be carried out is solved, and then the technical advantage that the auto-collimation working range is expanded with the same working distance or the working distance is increased within the same auto-collimation working range is achieved; in addition, due to the specific design of the collimation lens, the feedback imaging system, the reflector and the like, the device and method have the advantages that the structure is simple, the manufacturing cost is low, the stability of the measuring environment can be monitored, and rapid measuring can be achieved.

The invention relates to the field of precision measurement technology and the field of optical engineering and in particular relates to a portable combined zero setting high precision laser large working distance auto-collimation device and method. The device comprises a light source, a collimating mirror, a reflector, and a feedback imaging system. The method makes reflected light beams return to the image plane center of the feedback imaging system by adjusting the reflector and obtains the angle change of the surface of a measured object by means of an angle deflection measuring device on the reflector. The reflector is added to a conventional auto-collimation angle measuring system, so that the problem that measurement is impossible because reflected light of a measured object deviates from the measuring system is solved and the auto-collimation working range is increased on the condition of the same working distance or the working distance is increased on the condition of the same working range. Owing to the specific design of the collimating mirror, the feedback imaging system and the reflector, the device is small, portable, and high in measurement precision, can monitor the stability of measurement environments, and can perform measurement rapidly.

A belt inspect flex fuel cell carbon double pole plate processing method, the step as follows: process carbon double pole board main body, reserve working area in periphery of the plate; put the carbon double pole board main body in the mold trough equipped with fitting holeat the side of the trough; Drill the carbon double pole board main body side at fitting hole using drilling machine to work out inspect lead mounting hole; put one end of the lead into the mounting hole; thread the lead through the mounting hole and pressure range is controlled in the range of0.1Mp-5Mp or fill the fixed inspect lead containing rubber carbon.