44results about How to "Accurate measurement structure" patented technology

The present invention relates to a measuring apparatus for measuring a thickness or the like of a thin film formed on a surface of a substrate such as a semiconductor wafer. The measuring apparatus includes a microwave emission device (40) for emitting a microwave to a substance, a microwave generator (45) for supplying the microwave to the microwave emission device (40), a detector (47) for detecting an amplitude or a phase of the microwave which has been reflected from or passed through the substance, and an analyzer (48) for analyzing a structure of the substance based on the amplitude or the phase of the microwave which has been detected by the detector (47).

The present invention discloses a three-dimensional wind field measurement system applicable to an unmanned aerial vehicle and a use method of the three-dimensional wind field measurement system. The three-dimensional wind field measurement system comprises a data acquisition device and a control system; the data acquisition device comprises a plurality of wind speed measuring devices and a wind speed acquisition support; each wind speed measuring device includes wind speed sensors and a wind speed sensor fixing mechanism; the wind speed acquisition support includes a base main body, upright columns and a top cover; the base main body includes an upper-layer base and a lower-layer base; the top surface of the upper-layer base is provided with the plurality of upright columns which are distributed circumferentially; the upright columns are provided with the wind speed measuring devices; the lower-layer base is provided with a rotation driving device for driving the upper-layer base to rotate; and the top surface of the upper-layer base and the bottom surface of the top cover are both provided with the wind speed measuring devices. With the three-dimensional wind field measurement system of the invention adopted, the measurement of a three-dimensional space wind field at a specific area around the unmanned aerial vehicle can be realized. The three-dimensional wind field measurement system has the advantages of simple structure, convenient operation, easiness in arrangement and high applicability.

The invention discloses a solid-liquid interface determination device for a silicon ingot furnace. The solid-liquid interface determination device comprises a quartz rod, a cylinder, a driving device, a pressure sensor and a PLC (programmable logic controller), wherein the quartz rod is used for being in contact with solid polysilicon in a silicon ingot furnace; a first piston rod of the cylinder is in a extending state and is connected with the quartz rod; the driving device is used for driving the quartz rod to make a rectilinear motion in the vertical direction; the pressure sensor is mounted between the first piston rod of the cylinder and the quartz rod and is used for sensing an acting force generated by the contact between the quartz rod and the solid polysilicon; and the PLC is electrically connected with the driving device and the pressure sensor respectively, and is used for receiving signals collected by the pressure sensor and controlling the driving device to drive the quartz rod to ascend or descend according to the received signals. The solid-liquid interface determination device for a silicon ingot furnace is simple in structure, low in manufacturing cost, convenient to use and accurate in measuring structure, and can automatically obtain depth of molten silicon in the silicon ingot furnace without requiring measuring personnel to manually insert the quartz rod into the silicon ingot furnace and read frequently, thereby relieving the measuring personnel.

The invention discloses automatic loading and grinding equipment for pipe fittings, comprising a loading device, a support device, a grinding device and a measuring device, wherein the support device is located at the discharge end of the loading device, the grinding device is located above the support device, and the measuring device is located at the discharge end of the grinding device. According to the invention, automatic loading can be realized by the loading device, a support mechanism with an adjusting function is adopted, the structure is simple, the operation is convenient, an effect of being adjustable is achieved, and after grinding is completed, due to match of a first clamping device and a second clamping device, the measuring device can carry out multi-angle measurement on a steel pipe which can be rotated when being clamped, and vibration and shake of the steel pipe can be reduced; and since a bearing plate is arranged, the steel pipe can be placed more firmly, steel pipe measurement is more accurate, errors can be reduced, and the steel pipe measuring effect is better.

The invention discloses a plastic pipe surface treatment device which comprises a feeding device, a clamping and locating device, a grinding device and a measuring device. The clamping and locating device is located at the discharging end of the feeding device. The grinding device is located above the clamping and locating device. The measuring device is located at the discharging end of the grinding device. The automatic feeding purpose is achieved through the feeding device; a material carrying mechanism with the adjusting function is adopted, the structure is simple, operation is convenient, and the adjusting effect is achieved; a lifting device is arranged so that a whole grinding head mechanism can move upwards, downwards, leftwards and rightwards, and the use limitation is avoided; after grinding is finished and through the cooperation of a first clamping device and a second clamping device, a steel pipe can be rotated when clamped and can be measured by the measuring device at multiple angles, and vibration and shakes of the steel pipe are reduced; and a carrying board is arranged, so that the steel pipe is placed more stably and measured more accurately, errors are reduced, and the measuring effect of the steel pipe is better.

The invention discloses a plastic pipe surface super-finishing and polishing device which comprises a feeding device, a clamping positioning device and a measuring device. The clamping positioning device is located at the discharging end of the feeding device. According to the plastic pipe surface super-finishing and polishing device, automatic feeding is achieved through the feeding device, and the clamping positioning device is used for positioning; by means of the cooperation of a first clamping device and a second clamping device, a steel pipe can rotate while being clamped so that the measuring device can measure the steel pipe in multiple dimensions after grinding is finished; in addition, vibration and shaking of the steel pipe are reduced; a bearing plate is arranged so that the steel pipe can be placed more stably, steel pipe measurement is more accurate, errors are reduced, and the steel pipe measurement effect is better.

The invention discloses a packaging structure of a time-of-flight distance sensor. The packaging structure comprises a substrate and a top cover, a chip is bonded on the outer wall of the top of the substrate, a reference detector and a measurement detector are respectively integrated on the two sides of the outer wall of the top of the chip, and a laser is bonded on the side, close to the reference detector, of the outer wall of the top of the substrate. First opaque glue is arranged at the position, close to the edge, of the outer wall of the top of the substrate, the top cover is adhered tothe outer wall of the top of the substrate through the first opaque glue, a baffle is integrally formed on the outer wall of the bottom of the top cover, second opaque glue is adhered to the outer wall of the bottom of the baffle, and the baffle is adhered to the upper face and the two sides of the chip through the second opaque glue. A light outlet and a light inlet are formed in the two sides of the outer wall of the top of the top cover respectively, and optical filters are bonded to the positions, close to the light outlet and the light inlet, of the inner wall of the bottom of the top cover. The packaging structure is simple, and the packaging operation can be completed only by using opaque glue with lower cost, so that the cost of the device is reduced.

The invention discloses a device for detecting rigidity of an automobile safety airbag. The device comprises an L-shaped operation platform (1), wherein two fixing blocks (2) are upward and downward arranged on the vertical surface of the L-shaped operation platform (1); a vertical slide rail (15) is arranged between the two fixing blocks (2); each of the fixing blocks (2) comprises an upper fixing block (3) and a lower fixing block (4); a smooth through hole penetrating through a screw rod (5) is formed on the upper fixing block (3); a circuit groove used for loading the bottom end of the screw rod (5) is formed on the upper surface of the lower fixing block (4); a moveable block (6) is in threaded connection with the screw rod (5); the moveable block (6) can slide on the vertical slide rail (15); the moveable block (6) is connected with a horizontal upper extruding plate (8) through a vertical rod (7). The device for detecting the rigidity of the automobile safety airbag provided by the invention has the advantages of high degree of automation, true and reliable detection result, strong universality and applicability to the detection for various airbags in the automobile.

The invention discloses a pipe grinding device comprising a feeding device, a supporting device, a grinding device and a measuring device, wherein the supporting device is located at the discharging end of the feeding device; the grinding device is located above the supporting device; and the measuring device is located at the discharging end of the grinding device. Automatic feeding is realized through the feeding device; due to the adoption of a supporting mechanism with an adjusting function, the pipe grinding device is simple in structure and convenient to operate, and an adjustable effect is achieved; due to the arrangement of a lifting device, the whole grinding head mechanism not only can vertically move, but also can horizontally move, and service restrictions are avoided; the measuring device used after grinding is provided with a first clamping device, so that a steel pipe can rotate when being clamped, multi-angle measurement can be realized, and the vibration and shake of the steel pipe are reduced; and due to the arrangement of a bearing plate, the steel pipe is more stable and is more accurately measured, errors are reduced, and the steel pipe measuring effect is better.

The invention discloses a liquid refractive index measurement device and measurement method. The measurement device comprises a light source, used for emitting parallel light beams; a half-transparentsemi-reflective mirror is arranged on a light path, and used for dividing the parallel light beams emitted by the light source into a first light beam and a second light beam; the first light beam irradiates a liquid column to be measured, and is formed into rainbow distribution of the liquid to be measured via scattering; a first linear array CCD is used for recording the rainbow distribution ofstandard liquid; both the first linear array CCD and a second linear array CCD are connected with the computer; the second light beam irradiates a plane mirror, and irradiates a standard liquid column after being reflected by the plane mirror, and is formed into rainbow distribution of the standard liquid after being scattered; the second linear array CCD is used for recording to the rainbow distribution of the standard liquid. According to the measurement device and measurement method provided by the invention, after the parallel light beams irradiate the standard liquid column and the liquid column to be measured, a first-order rainbow is separately formed at the standard liquid column and the liquid column to be measured in parallel; the refractive index of the liquid to be measured isacquired through analyzing the first-order rainbows at the standard liquid column and the liquid column to be measured; the measurement method is simple and easy to operate.

The invention discloses an automobile airbag rigidity detection device. The automobile airbag rigidity detection device comprises an L-shaped operating platform (1), wherein two fixed blocks (2) are arranged on a vertical surface of the operating platform (1) in the vertical direction, the fixed blocks (2) comprise an upper fixed block (3) and a lower fixed block (4), the upper fixed block (3) is provided with a smooth through hole for a screw (5) to pass through, the upper surface of the lower fixed block (4) is provided with a circular groove for holding the bottom end of the screw (5), the screw (5) is connected with a movable block (6) in a threading manner, the movable block (6) is connected with an upper extrusion plate (8) in the horizontal direction through a vertical rod (7), and a surface, contacting the upper extrusion plate (8), of the vertical surface is provided with a square groove for preventing the left-right displacement of the upper extrusion plate (8). The automobile airbag rigidity detection device is high in automation degree, real and reliable in detection result, high in universality and applicable to the detection of various airbags in a car.

The invention discloses an anti-shock automobile safety airbag stiffness test device comprising an L-shaped operation platform (1). Two fixing blocks (2) are arranged up and down on the vertical side of the operation platform (1), and the fixing blocks (2) include an upper fixing block (3) and a lower fixing block (4). The upper fixing block (3) is provided with a smooth through hole for a screw (5) to pass through. The upper surface of the lower fixing block (4) is provided with a circular groove. The screw (5) is in threaded connection with a moving block (6), and the moving block (6) is connected with an upper extruding board (8) in the horizontal direction. The top end of the vertical side is connected with a top board (15). A telescopic rod (16) is vertically arranged on the lower surface of the top board (15). The upper surface of the upper extruding board (8) is provided with a groove (17). According to the anti-shock automobile safety airbag stiffness test device provided by the invention, the test result is real and reliable, and the upper extruding board has an anti-shock function.

The invention relates to a test device and a test method for the thermal shrinkage rate of chemical fiber filaments. The test device includes a double limiter structure and a load cell; the double limiter structure includes an upper hook, a lower hook, an upper hook plate, The upper limiter, the lower hook plate, the lower limiter, and the metal guide wire; the installation of the load cell and the toggle mechanism connected to it can support the upper hook plate to move upward, and the lower hook plate moves upward to the lower limiter. Blocking and stopping movement, the upper hook plate continues to rise to apply tension to the skein sample, the load cell bears the load in the downward direction, and the instrument automatically measures the skein sample under the preset standard tension before and after heating Length value, thereby measuring the thermal shrinkage rate of the chemical fiber filament sample. The test device and test method obviously improve the test accuracy of the thermal shrinkage rate of the chemical fiber filament sample, the calibration and calibration of the force measuring system is convenient, the structure is reliable, and the failure rate is greatly reduced.

The invention discloses a freely-adjustable novel pipe grinding system comprising a feeding device, a supporting device, a grinding device and a measuring device, wherein the supporting device is located at the discharging end of the feeding device; the grinding device is located above the supporting device; and the measuring device is located at the discharging end of the grinding device. Automatic feeding is realized through the feeding device; due to the adoption of a supporting mechanism with an adjusting function, the freely-adjustable novel pipe grinding system is simple in structure and convenient to operate, and an adjustable effect is achieved; through the match of a first clamping device and a second clamping device of the measuring device used after grinding, a steel pipe can rotate when being clamped, multi-angle measurement can be realized, and the vibration and shake of the steel pipe are reduced; and due to the arrangement of a bearing plate, the steel pipe is more stable and is more accurately measured, errors are reduced, and the steel pipe measuring effect is better.

The invention relates to a test device and test method for the thermal shrinkage ratio of chemical fiber filaments. The test device comprises a double-limiter structure and a force measuring sensor; the double-limiter structure comprises an upper hanging hook, a lower hanging hook, an upper hanging hook disc, an upper limiter, a lower hanging hook disc, a lower limiter and metal lead wires; through mounting the force measuring sensor and a toggle mechanism connected with the force measuring sensor, the upper hanging hook disc can be supported to move upwards, the lower hanging hook disc upwards moves to the lower limiter and then is blocked to stop moving, the upper hanging hook disc continues to rise and applies a tensile force to a reeled silk sample, the force measuring sensor bears a downwards-directional load, and length values of the reeled silk sample before heating and after heating under preset standard tension are automatically measured by instruments, so that the thermal shrinkage ratio of a chemical fiber filament sample is measured. By adopting the test device and the test method, the accuracy of measuring of the thermal shrinkage ratio of the chemical fiber filament sample is obviously increased, a force measuring system is convenient to standardize and calibrate and is reliable in structure, and the failure rate is greatly lowered.

The invention relates to a test apparatus and test method of the hot shrinkage rate of a chemical fiber filament. The test apparatus comprises a double-limiter structure and a force measuring sensor; the double-limiter structure comprises an upper hook, a lower hook, an upper hook disc, an upper limiter, a lower hook disc, a lower limiter and a metal guiding wire; and a poking mechanism provided with the force measuring sensor and connected with the force measuring sensor can support the upper hook disc to make the upper hook disc move upward, the lower hook disc moves upward to the lower limiter, and is blocked and stopped by the lower limiter, the upper hook disc continuously rises to apply tension to a twisted wire sample, the force measuring sensor bears downward load, and the apparatus automatically measures the length of the twisted wire sample under preset standard tension before and after heating in order to obtain the hot shrinkage rate of the chemical fiber filament sample. The test apparatus and the test method have the following advantages of: the test precision of the hot shrinkage rate of the chemical fiber filament is obviously improved, calibration and correction of a force measuring system are convenient, the structure is reliable, and the failure rate is greatly reduced.