31results about How to "Avoid compromising measurement accuracy" patented technology

The invention relates to a parallelism inspection tool for a ball screw and a guiding rail at a gantry machining center. The innovative point is that the tool includes a bridge plate arranged on the guide rail, and a mounting board fixed in the middle of the bridge plate, wherein a guiding limit component used for guiding the bridge plate in the guiding rail extending direction is arranged on the bridge plate; a screw rod-above bus measurement mechanism and a screw rod-side bus measurement mechanism both used for detecting the offset of a screw rod are mounted on the mounting board simultaneously. The tool has the advantages as follows: under the guiding of the guiding limit component, the bridge plate moves in the guiding rail extending direction, so that the screw rod-above bus measurement mechanism and the screw rod-side bus measurement mechanism can move in the guiding rail extending direction simultaneously, and dial indicators in the screw rod-above bus measurement mechanism and the screw rod-side bus measurement mechanism detect bounce amount when the measurement mechanisms pass by the surface of the screw rod, as a result, the parallelism of the screw rod and the guiding rail can be judged, and the detection is quick and convenient.

The invention discloses a method for measuring the indissolvable nickel-base superalloy multielement content with the microwave digestion ICP method. According to the method, a sample is digested in a microwave digestion instrument with hydrochloric acid, the acidity of a sample solution and the acidity of a standard solution are stabilized with a sulfuric acid and phosphoric acid mixture, then citric acid is added to prevent high-valent metal ion hydrolysis, the content of a matrix is adjusted for the matching purpose, a standard solution curve is made finally, and a proper analytical line is selected for measurement on an inductive coupling high-frequency plasma atomic emission spectrometer. Due to the fact that the sample is digested by means of hydrochloric acid, pollution to a hydrofluoric acid eroding instrument by a quartz feeding system of the instrument is avoided, and then measurement accuracy can not be affected. Meanwhile, the acidity of the sample solution and the acidity of the standard solution are stabilized with the sulfuric acid and phosphoric acid mixture, then citric acid is added to prevent high-valent metal ion hydrolysis, the content of the matrix is adjusted for the matching purpose, and therefore matrix effect is reduced.

The invention discloses a calibrating technology and device for a pure water total organic carbon analyzer. The calibrating device comprises a stirrer, a mixing bottle, an air inlet pipe, an exhaust pipe, a distribution pipeline, the pure water total organic carbon analyzer for calibration and a collecting bottle. According to the calibrating technology and device, during use, protective gas is continuously input into the mixing bottle, after air is discharged completely, blank water and a TOC solution with the known concentration are accurately input into the scale mixing bottle through an infusion pump, uniform stirring is carried out through the stirrer, the data measured by the high-accuracy pure water total organic carbon analyzer is compared with the result of dilution of TOC of thesolution in the mixing bottle, the result of the newly-prepared TOC standard solution obtained in the diluting and mixing processes is confirmed to be accurate and reliable, and the calibrating technology and device can be used for calibrating the pure water total organic carbon analyzer to be detected; due to the fact that the protective gas is continuously introduced into the mixing bottle, theair is driven out of the mixing bottle, and therefore the phenomenon that the detection precision is influenced due to the fact that carbon dioxide in the mixing bottle is blended into the mixing bottle can be avoided; the mixing bottle is made of a quartz material, so that the phenomenon that the detection accuracy is influenced due to the fact that metal ions is dissolved out due to the adoptionof a glass material can be avoided; the distribution pipeline is made of polytetrafluoroethylene, so that the problem that the detection accuracy is influenced due to the fact that free carbon elements in a pipeline enter a solution due to the adoption of a plastic pipeline can be solved; and accurate calibration of the pure water total organic carbon analyzer is realized.

The invention provides an online direct measurement device of wellhead crude oil water content on the basis of a radio frequency method. The online direct measurement device comprises a measuring sensor, an explosion-proof junction box, and an outdoor explosion-proof tank, wherein the measuring sensor comprises a probe, a joint body, a measurement circuit board, a protective pipe, a shell, a butting body, a pressing stud and a signal wire, the device also comprises a measuring circuit and an integrated data processing circuit, the device provided by the invention solves the problem that real-time on-line monitoring on water content of a Changqing oil field single well wellhead can not be realized at present, and overcomes the problems that the existing device is high in cost, wax is easily deposited due to the fact that the probe contacts with crude oil for a long time, and a data processing method of one-to-many greatly reduces the production input cost.

The invention relates to a height measuring device and a method for measuring the height of a developing solution nozzle. The device is placed on the upper surface of a wafer, and the lower surface of a bottom plate is pressed against the upper surface of the wafer. The developing solution nozzle is moved to a spraying position and a second piston is pushed. In this way, the upper surface of a measurement plate is driven to press against the lower end of the developing solution nozzle. Meanwhile, the height difference between the upper surface of the measurement plate and the lower surface of the bottom plate is measured in the form of a scale. The scale is just the height of the developing solution nozzle relative to the wafer. Therefore, the height measurement of the developing solution nozzle relative to the wafer is convenient in operation and accurate in result.

The invention discloses a sampling device capable of reducing PH electrode pollution. The sampling device is characterized in that the top of a solid-liquid separator is connected to an adjustable overflow pipe; the adjustable overflow pipe is connected to a feed inlet of an overflow measuring tank by a flexible pipe; the top of the overflow measuring tank is connected to a PH measuring interface; and an inclined filtration orifice plate is connected between the PH measuring interface and the feed inlet. The sampling device can effectively prevent PH glass electrode wearing caused by a high-solid content liquid, reduce an easy-scaling solid-containing liquid deposited on the surface of a PH glass electrode, and improve the accuracy of PH measurement.

The invention discloses an ammeter housing and an ammeter, for solving the problems of difficult dissipation of heat generated by a conventional ammeter shunt and affected measuring precision. The ammeter comprises electronic components, a cover and the ammeter housing. The ammeter housing comprises an accommodation housing, the accommodation housing comprises a wiring cavity and an electric appliance cavity for accommodating the electronic components, the wiring cavity is internally provided with a terminal box, the terminal box is internally provided with a shunt, multiple wiring terminals and multiple function terminals, the shunt is arranged behind the wiring terminals, the shunt is provided with a lead wire penetrating the terminal box for connection with the electronic components in the electric appliance cavity, the terminal box comprises a base and a cover plate, the shunt is arranged on the base, and the base and the cover plate cooperate to form an accommodation isolation cavity for isolating the shunt from the electric appliance cavity. The ammeter housing and the ammeter have the advantages of simple structure, convenient assembling, good heat dissipation performance, high measuring accuracy, reliable wiring, small energy consumption, low fault rate and the like.

The invention relates to a suspended sediment load automatic sampling device, which solves the problem that the suspended sediment load automatic sampling in the prior art is generally completed manually, the workload is large, and the sampling standard is affected by manual works. The suspended sediment load automatic sampling device includes a sampling chamber; the center of the bottom of the sampling chamber is provided with a cylindrical sampling shield extended downward; the side wall of the sampling shield is provided with a hollow convection hole; a lifting device is arranged verticallybetween the top of the sampling chamber and the lower end of the sampling shield; one side of the lifting device is hingedly provided with a sampling cylinder which can be turned over outward; a circular rail is arranged in the sampling chamber surrounding the sampling shield; sampling bottles are evenly arranged on the circular track; a funnel fixed to the inner wall of the sampling chamber is arranged at a position corresponding to the sampling cylinder above the circular rail; and the bottle mouth is aligned with the lower end of the funnel when the sample bottle is rotated to the positionunder the funnel. According to the invention, the results of multiple sampling are filled into the sampling bottle separately, and the weighing of the muddy water sample is directly completed after the sampling is completed; therefore, the influence of water evaporation on the measurement accuracy is avoided.

The invention discloses an induction type water outlet device for a faucet. The induction type water outlet device comprises a shell, a solenoid valve, a first processor and induction assemblies, wherein the shell comprises a water inlet and a water outlet; the solenoid valve is arranged in the shell; the first processor is in communication connection with the solenoid valve; the induction assemblies are connected with the shell; each of the induction assemblies comprises an inductor and a second processor; each inductor is in communication connection with the corresponding second processor; and the second processors are in communication connection with the first processor. Through arrangement of the separate induction assemblies, digital signals are transmitted to the first processor, theinductors are prevented from be affected by outside or replacement, so that the measurement accuracy cannot be affected; inductor signals received by the second processors are defaulted to standard signals, so that the accuracy of signal values is ensured, the adjustment workload of the induction assemblies in a production process is reduced, and the induction assemblies are formed into an integrated unit, and therefore the induction assembly unit only needs to be replaced in need of replacement, so that the maintenance cost is reduced, and the repairing convenience of the equipment is ensured.

The invention discloses a high-rise steel structure machining and measuring device, and relates to the technical field of steel pipe machining. The problem that the length of a steel pipe cannot be measured while the thickness of the steel pipe is measured is solved. The device specifically comprises a bottom plate, four supporting columns are arranged at the four corners of the outer wall of the top of the bottom plate correspondingly, two second mounting plates and two first mounting plates are arranged on the outer wall of the top of the bottom plate correspondingly, four connecting columns are arranged on the outer walls of one sides of the four supporting columns correspondingly, the outer walls of one sides of the four connecting columns are arranged on the outer walls of one sides of the two second mounting plates and the outer walls of one sides of the two first mounting plates correspondingly. According to the invention, second handles, second fixing blocks, a top plate and first elastic telescopic rods are arranged, the first elastic telescopic rods can provide certain buffering for an extrusion plate, the problem that a steel pipe cannot move normally due to the fact that the steel pipe is excessively extruded by an extrusion wheel is avoided, and meanwhile, a worker can adjust the height of the top plate through the two second handles.

The invention provides a positive and negative X-side detection device based on the utilization of a piezoelectric detection method, which comprises a lower plate and an upper plate, wherein two sidesof the lower plate are respectively provided with lower plate guide rails, the head and tail ends of each lower plate guide rail are respectively provided with abutting plates, and two sides of the upper plate are respectively provided with upper plate guide rail brackets matched with the lower plate guide rails in use. The invention further provides a positive and negative X-side detection method based on the utilization of the piezoelectric detection method, which comprises the steps of 1) placing a substrate to be detected on the lower plate; 2) pushing the upper plate to move from the tail end to the head end of the lower plate, enabling an upper plate electrode to push the substrate to be detected until the other end of the substrate to be detected is contacted with a lower plate electrode; and 3) watching the display of a charge amplifier meter. The positive and negative X-side detection device and method adopt a two-plane contact extrusion device to avoid edge and corner damageto the thin substrate of devices used in the Internet of Things, and introduce an elastic extrusion structure and an electrode contact plane at the same time so as to minimize the edge and corner damage to the thin substrate in the testing process.

The invention discloses a water level switch calibration detector that comprises a water storage tank, a base and a measuring box; a water storage tank is mounted at one end of the top end of the base; a measuring box is mounted at the top end of the base away from the water storage tank; a lifting box is vertically installed in the middle of the upper end of the side, away from the water storagetank, of the measuring box. A sliding groove is formed in the middle of the side, close to the measuring box, of the lifting box, a connecting block is arranged in the sliding groove in a sleeved mode, a hinge plate is horizontally installed on the side, away from the lifting box, of the connecting block, semicircular clamps are horizontally hinged to the two sides of the end, away from the connecting block, of the hinge plate, and liquid level switches are arranged in the semicircular clamps. By rotating the second rotating handle, the rubber plate and the water pressing plate slide in the sliding way through the sliding block and slowly and stably descend, clear water in the water storage tank is slowly injected into the measuring box through the water passing pipe, and therefore the situation that measurement accuracy is affected due to violent shaking during water adding or water draining is avoided.

The invention discloses a bra, belongs to the field of bras, and aims to solve the technical problem of how to provide underwear which is simple in structure and adapts to cups with different sizes. According to the bra, a lower lying position comprises a front middle lower lying part, a lower lying part and a front side lower lying part which are connected in sequence, the front middle lower lying part and the front side lower lying part are fixed in length and free of elasticity, the lower lying part is an elastic deformation lying part, the front lower lying part has transverse elasticity,each cup comprises a breast support, a cup body and bowl binding lines, the chest support is an elastic chest support consisting of a large chest support and a small chest support embedded in the large chest support, the small edges of the large breast support and the small breast support are overlapped, and the upper edge of the small breast support is lower than that of the large breast support,the number of the breast supports is two, a cover body is an elastic cover body and wraps the outer sides of the two breast supports, the bowl binding line have deformation but have no length variable, the two bowl binding lines are respectively a front middle bowl binding line and a front side bowl binding line, the front middle bowl binding line is sewn on the front middle lower part, and the front side bowl binding line is sewn on the front side lower part.

The invention discloses a light, temperature and humidity control system of an earthworm breeding co-processing sludge biochemical system. The light, temperature and humidity control system comprisesa remote terminal, a wireless communication module, a control processing module, a monitoring module and an adjusting device; the control processing module is used for data processing and equipment control, and realizes data transmission with the remote terminal through the wireless communication module; the monitoring module comprises a plurality of sensors and can transmit a plurality of environmental condition values to the control processing module; and the adjusting device comprises a water pump, a water pipe, an outer main pipe an outer branch pipe which are sequentially connected, and further comprises an air pump, an air pipe, an inner main pipe and an inner branch pipe which are sequentially connected, and the control processing module controls the inner branch pipe to spray air by controlling the air pump and controls the outer branch pipe to spray water by controlling the water pump. According to the light, temperature and humidity control system, the monitoring module can measure various environmental indexes and transmit information to workers in time through the remote terminal, environmental conditions of substances where earthworms move can be adjusted in time, andthe adjusting device is simple in structure and low in cost.