32results about How to "Guaranteed scanning accuracy" patented technology

The present invention relates to a method for scanning a projective capacitive touch panel including: A. scanning each first-axis electrode arranged along a first-axis and each second-axis electrode arranged along a second-axis, then obtaining the first-axis electrode and the second-axis electrode whose self capacitance changes; B. detecting the mutual capacitance at each intersection between the first-axis electrode and the second-axis electrode whose self capacitance changes to determine whether the mutual capacitance changes, then the area where the mutual capacitance changes being taken as a touched area. The present invention also relates to a storage medium storing instructions of implementing above method and an apparatus that implements the above method.

The present invention discloses a tooth three-dimensional data reconstruction method, device and system. The method comprises the steps of: employing a three-dimensional imaging system to obtain sparse point cloud sets of teeth in different perspectives, wherein the three-dimensional imaging system comprises a main camera and a plurality of light sources; determining one dense three-dimensional point cloud of teeth in each perspective according to the sparse point cloud set; and performing splicing and fusion of the dense three-dimensional point cloud in different perspectives, and obtaining tooth three-dimensional data. The technical problem is solved that hardware device is high in requirement and complex in calculation when the tooth three-dimensional data is collected in the prior art.

The invention discloses a micro-region fluorescent scanning measurement system which comprises an exciting light source, an excitation light path part, a fluorescence signal collection light path part, a micro-region imaging light path part, a table-board, a two-dimensional electric translation system, a vacuum sample chamber, a vacuum pump, a low-temperature system and temperature control device, a grating spectrometer and a CCD detector, wherein the input end of the excitation light path part is connected with the exciting light source, and the output end of the excitation light path part is connected with the vacuum sample chamber; the excitation light path part is used for guiding laser to income into a sample in the vacuum sample chamber; the fluorescence signal collection light path part is used for collecting a fluorescence signal emitted from the sample; the micro-region imaging light path part is connected with the excitation light path and the fluorescence signal collection light path and is used for micro-region imaging and positioning of the sample surface topography; the excitation light path and the fluorescence signal collection light path part are arranged on the table-board; the two-dimensional electric translation system drives the table-board to do a two-dimensional scanning motion; the vacuum sample chamber is used for placing the sample; the vacuum pump is used for maintaining the vacuum degree of the vacuum sample chamber; according to the low-temperature system and temperature control device, the vacuum degree of the vacuum sample is maintained, and the sample chamber is maintained in a needed low temperature environment; the grating spectrometer is used for processing the fluorescence signal; and the CCD detector is used for acquiring the fluorescence signal.

The invention discloses a selective laser sintering scanning method. When a sharp corner is met in a selective laser sintering process, a sealed curved-form empty jump is adopted to change the scanning direction, and the scanning speeds at the front and back of the corner are guaranteed to be consistent, thus uniform laser scanning intensity and scanning accuracy of the sharp corner are guaranteed.

The invention relates to a machining method of a large thin-wall bearing ring. The machining method comprises the steps that 1, pretreatment is carried out, wherein a bearing ring rough body is heated to 180-220 DEG C and kept at the temperature for 10-14 h; 2, the ring is subjected to heat treatment; 3, low-temperature cooling treatment is carried out, wherein the temperature is decreased to -65--75 DEG C and kept for 1.5-2.5 h; 4, rough grinding machining is carried out; 5, primary additional tempering is carried out, wherein the roughly-ground product is heated to 140-160 DEG C and kept at the temperature for 22-24 h; 6, semi-accurate machining is carried out; 7, secondary additional tempering is carried out, wherein the semi-accurate ground product is heated to 140-160 DEG C and kept at the temperature for 22-24 h; and 8, final grinding machining is carried out. By means of the machining method, the factors that before heat treatment, machining stress deformation is caused, quenching stress is too large, and stress cannot be completely released through one-time tempering are eliminated, the problem that large thin-wall bearing parts are large in heat treatment deformation is relieved, bearing size stability is improved, machining stress is sufficiently released, machining precision is improved, and therefore the surface quality and rotating precision of a bearing are improved.

The present invention discloses a blade automated detection device based on three-dimensional raster scanning based on three-dimensional optics and a detection method thereof. The device comprises a motion control component, a scanner vertical motion component, a scanner rotation motion component, and a workpiece rotation motion component. A PC-PCI based motion control card is used to control each motion component to move according to a specified trajectory. The scanner vertical motion component is installed on a base and is provided with a sliding plate capable of sliding along a vertical direction, and the movement of a scanner in the vertical direction is realized. The scanner rotation motion component is installed to the connection plate of the scanner vertical motion component and is provided with a connection rod which drives the scanner to rotate. The workpiece rotation motion component is provided with an electromagnetic sucker for fixing the workpiece, the workpiece is driven to rotate, and thus complete workpiece three-dimensional model data can be scanned.

The invention discloses a sonar detecting bracket and a caisson seam measuring method. The main structure of the bracket is trapezoidal. A three-dimensional sonar host is fixed inside the bracket bodycavity. The opening end of the trapezium guarantees a large contacting surface between the bracket and the caisson, so that the stability of detection, the emission range of sonar, and the accuracy of detection data are guaranteed. The depth of the sonar head is mastered by a sounder. The weight and position of the floating material on the bracket are used to meet requirements of different waterflow conditions and working postures. The caisson seam measuring method which is based on three-dimensional sonar measurement technology can adjust corresponding water depth detecting points accordingto the actual detecting conditions to realize visual, fast, and low-cost non-destructive detection of caisson seams. The caisson seam measuring method can qualitatively and quantitatively and accurately measure the width of the caisson seam, provides basis for quickly judging the construction quality of caisson engineering, can be widely used in the actual engineering inspection of caisson mounting, and has strong practicability and wide applicability.

The invention provides a magnetron, which comprises a center magnetic control partition, an edge magnetic control partition and a driving mechanism, wherein the driving mechanism can synchronously or independently drive magnetic body groups in the center magnetic control partition and the edge magnetic control partition and make the magnetic body groups run in the own magnetic control partition according to predetermined tracks. The magnetron can effectively increase the metal atom ionization rate of the whole target region, particularly an edge region, so as to improve the hole filling uniformity of the edge region of a substrate. Furthermore, the invention also provides thin film deposition treatment equipment applying the magnetron.

The invention discloses a data fusion method based on structured light. The method comprises the steps: S1, configuring a structured light vision system which comprises two monocular systems and a binocular system, and calibrating the internal and external parameters of the monocular systems and the binocular system; S2, using a calibration plane for calibration to obtain a pixel correction table to be matched on a projector plane, and moving the calibration plane to different positions to obtain n pixel correction tables, wherein the value of n ranges from 8 to 15; S3, performing binocular reconstruction, and in the reconstruction process, identifying points of view shielding and points of matching failure existing in the binocular system; and S4, aiming at the points of view shielding and the points of matching failure in the binocular system in the step S3, performing monocular reconstruction by utilizing the first monocular system and/or the second monocular system and combining the n pixel correction tables obtained in the step S2. The method can meet general precision requirements of monocular and binocular data fusion based on structured light.

The invention discloses a novel large-view 3D laser camera structure, and relates to the technical field of 3D laser cameras. The main structure comprises a driving mechanism, a pendulum mechanism anda 3D camera, and the 3D camera comprises a camera body and a laser arranged at the bottom of the camera body. The driving mechanism selects a motor, the motor drives the connecting rod to enable a swing rod to swing, so that the laser is driven to swing within a certain angle range, the swing stability of the laser is guaranteed, the scanning interval and the swing range of the laser can be changed by adjusting the rotating angle and the rotating speed of the motor, and the scanning precision is guaranteed.

The invention relates to the technical field of electron microscopes and particularly relates to a high-precision piezoceramic scanner. The high-precision piezoceramic scanner comprises a support, a piezoelectric tube body, a shell, a cover, a first wire, a second wire, a connector and a ceramic tube, wherein the support is fixed inside one end of the shell. according to the high-precision piezoceramic scanner provided by the invention, while the scanning precision is ensured, the making process is simple, the success rate is high, the cost is low, the high-precision piezoceramic scanner can be applied to a scanning tunneling microscope and a scanning probe microscope, and industrial production is facilitated.

The invention relates to the technical field of laser measurement, and particularly discloses an improved 3D laser scanning imaging system which comprises an outer frame and a pull rod connected withthe outer frame; a servo motor, a synchronous belt base, a linear sliding rail, a sliding block, a scanner and a scanner frame are arranged on the outer frame, and the servo motor is connected with the synchronous belt base through a synchronous belt. The sliding block is installed on the linear sliding rail, the scanner frame and the sliding block are both connected with the synchronous belt base, and the scanner is installed on the scanner frame. The improved 3D laser scanning imaging system is simple in structure and flexible in movement, can effectively guarantee the scanning imaging precision, and meets the production demands.