7results about How to "Large scanning area" patented technology

The utility model relates to the technical field of three-dimensional laser scanners, and discloses a multi-wavelength handheld three-dimensional laser scanner, which comprises a casing, a plurality of point marking cameras arranged at the upper part of one side of the casing, a laser arranged at the upper side of the middle part of one side of the casing, and an LED lamp arranged at the lower side of the middle part of one side of the casing. A laser camera is arranged at the lower end of one side of the machine shell, a telescopic mechanism is fixedly connected to the middle of one side of the machine shell, a holding mechanism is fixedly connected to one end of the telescopic mechanism, the telescopic mechanism comprises a shell, the holding mechanism comprises a fixing plate, the fixing plate is fixedly connected with the shell, and an outer cover is fixedly connected to one end of the shell. The middle of the outer cover is slidably connected with a pressing block. According to the utility model, a worker can press the pressing block to enable the telescopic mechanism to stretch out and draw back repeatedly, so that the scanning range is wider, the measurement is more accurate, and the holding mechanism ensures the safety of the scanner when the scanner is used.

The utility model discloses a kind of grid compensation scanning systems, frame driving device drives mobile wind field frame intermittent horizontal movement in the forming space of 3D printing equipment along X direction, the mobile wind field frame of grid structure is formed with several lattices being arranged along X direction interval, several groups of laser galvanometer system along X direction arrangement respectively scans the powder field in each lattice range of mobile wind field frame, each lattice two side walls are respectively equipped with several air outlet and air inlet, air supply main pipe and return air main pipe on the outer side wall of mobile wind field frame are respectively communicated with each air outlet and air inlet, air supply main pipe is connected with the one end of air supply slide pipe of length adjustable, return air main pipe is connected with the one end of return air slide pipe of length adjustable, air supply slide pipe and return air slide pipe other end are respectively communicated with the air inlet and air outlet of protective gas circulation system, the utility model is favorable to realize fine scanning and efficient scanning, guarantee workpiece quality.

The present application relates to an underground pipeline detection device based on vibration waves, and relates to the technical field of pipeline detection, including a transmitter, a receiver, and a detection vehicle, wherein the transmitter is connected to the end of the pipeline, the receiver is connected to the detection vehicle, the detection vehicle is provided with a fixing mechanism for fixing the detection vehicle, and the detection vehicle is provided with a marking mechanism, and the marking mechanism is used to mark the detection point. The transmitter emits vibration waves, and the vibration waves extend along the pipeline. The receiver receives the vibration waves, and the receiver can display the buried depth of the pipeline. The maximum peak displayed on the receiver is the detection point directly above the pipeline. The marking mechanism marks the detection point of the pipeline, marks several detection points in turn, and finally connects the detection points to determine the direction and buried depth of the pipeline, thereby reducing the possibility of the pipeline being dug up due to misjudgment of the position during the excavation process, and reducing the risk of damage and leakage of the pipeline.

The invention discloses a plasma drill bit with a cluster impact nozzle and a drilling method, which belongs to the field of drilling engineering technology, and includes a drill bit body; the drill bit body includes a drill bit shell, an anode electrode is coaxially arranged inside the drill bit shell, an annular flow channel is formed between the drill bit shell and the anode electrode, and a cluster impact nozzle is arranged at the bottom end of the drill bit shell; a discharge chamber is arranged in the middle of the anode electrode; an anode base is arranged at the top of the anode electrode, the inside of the anode base is insulated and connected with the cathode base, and a cathode electrode is arranged at the lower end of the cathode base; a high-pressure medium flow channel is arranged on the anode base, and the top of the high-pressure medium flow channel is connected to a high-pressure medium pipe; a spiral groove is arranged on the outer wall of the cathode base, a working medium pipe connected to the spiral groove is arranged at the upper end of the cathode base, and an air film hole is arranged on the anode electrode. When the high-pressure gas is introduced into the present invention, the plasma jet is caused to spin with the vortex, the sweeping area is increased, and the diameter of the crushing pit generated can meet the requirements for the drill bit to enter.

The utility model relates to road detection technical field discloses an adjustable road cavity detection device, including in the mobile car body, the car body both sides are equipped with folding assembly together, the car body lower extreme fixedly connected with the bottom ground penetrating radar, the folding assembly lower extreme is equipped with two side ground penetrating radar, one side of car body is equipped with the limiting component for supporting folding assembly. The utility model through the folding assembly and the limiting component's synergies, has realized the flexible adjustment of device detection width, when the road is wider, the folding assembly can unfold side ground penetrating radar, and the bottom ground penetrating radar works in coordination to increase the scanning area to reduce the detection reciprocating frequency, improve the efficiency and reduce the workload, and the limiting component automatic extension support rod is stable to the unfolded part and supports, ensures the detection stability, and when the side ground penetrating radar folding is stored, the support rod contracts, keeps the compactness of device, and the device moves and stores conveniently.

The present invention belongs to the field of scanner technology, and in particular to a scanner correction mechanism, comprising a light-transmitting plate unit, a top frame and a bottom frame arranged on the upper and lower sides of the light-transmitting plate unit, a first CIS unit and a second CIS unit arranged on opposite side walls of the top frame and the bottom frame, and a first correction plate unit and a second correction plate unit; the first correction plate unit is located directly above the second CIS unit; the first CIS unit is located directly above the second correction plate unit; and also includes a synchronous drive module for driving the first correction plate unit and the second correction plate unit to move horizontally; the light-transmitting plate unit comprises two light-transmitting plate bodies arranged upper and lower, and a paper feeding channel is provided between the two light-transmitting plate bodies; compared with the traditional static linear scanning method, the present invention can realize that the second correction plate unit is the first CIS unit and that the first correction plate unit provides a dynamic scanning area of ​​the surface shape for the second CIS unit, with high precision, lower color deviation influence, and better scanning effect.

A method and a cell image analyzer for locating a region of interest (ROI) on a blood smear are provided. The method includes: a control device acquiring the initial and final imaging positions of an image capturing device for cell imaging of the blood smear, wherein the line connecting the initial and final imaging positions passes through the ROI (101); the control device causing relative movement between the image capturing device and the blood smear, and causing the image capturing device to capture multiple cell images at different positions on the blood smear starting from the initial imaging point until the relative movement and imaging stop at the final imaging position (102); and the control device determining the target position of the ROI based on the image features and imaging positions of the multiple cell images (103). This analyzer allows users to locate the ROI more quickly and accurately, and facilitates increasing the scanning area of ​​the ROI according to user needs.