34results about How to "The measurement went well" patented technology

The invention discloses a multiresolution large visual field angle high precision photogrammetry apparatus, which comprises: a dimensional visual sense system that at least comprises two large visual field cameras, wherein, an intersection of visual fields covers a detected area, and the two large visual field cameras are used for measuring low precision three dimensional positions of targets of the detected object in the detected area; multiple small visual field cameras, wherein, union of the visual fields covers the detected area, small visual field cameras are used for imaging the detected object; a data processing part, which connects to a three-dimensional visual sense system and multiple small visual field cameras, is used for determining which visual field of the small visual field cameras the detected object is located in, according to the low precision three dimensional positions of the detected object measured by the dimensional visual sense system, further determining a high precision three dimensional position of the detected object according to image positions of the detected object in these small visual field cameras.

The invention discloses a flow-equalizing self-stabilization air quantity measuring device, relates to an air quantity measuring device, and aims to solve problems of high fluctuation of measurement results, poor stability and inaccurate measured data of a measuring device due to the fact that an existing pulverizing system of a boiler is compact in arrangement, mounting space for an inlet of a coal mill is narrow, the measuring device is mounted difficultly and the air quantity of the inlet of the coal mill is uneven and unstable. A first ventilating duct, an air flow equalizer and a second ventilating duct of the flow-equalizing self-stabilization air quantity measuring device are linearly arranged and are sequentially communicated with one another, a plurality of spacers are fixedly connected into a flow equalizing area, a through hole is machined on a side wall of a testing area of the air flow equalizer, a speed testing tube penetrates through the through hole, portions of a tube body of the speed testing tube positioned outside the side wall of the testing area are respectively communicated with two differential pressure tubes and two cleaning air tubes, the speed testing tube is provided with a plurality of air inlet holes positioned on the side wall of the tube body in the testing area, a temperature transmitter is arranged inside the air flow equalizer, and a pressure transmitter is perpendicularly mounted on the outer side wall of the air flow equalizer. The flow-equalizing self-stabilization air quantity measuring device is used for measuring air quantities of inlets of coal mills.

A cylinder diameter measuring device of reciprocating internal combustion engine includes: a guiding piece located at the shaft core of the cylinder; a bearing part holding the guiding piece; a long support rod penetrating the guiding piece; a length measurer provided on the support rod and in cross with the support rod, wherein, the length measurer includes a rod shaped measurer body; a contact or non-contact type displacement converter provided at the top of the measurer body for converting the measured values into electrical signals and then outputting.

The invention discloses a non-contact flatness measurement model solving device with simple and diversified measurement ways. The non-contact flatness measurement model solving device comprises a rectangular operating platform, wherein a supporting seat is arranged below the operating platform, and side plates are fixedly arranged on the two sides of the operating platform; a pneumatic vibration-guiding suction disc and a displacement sensor are arranged on the operating platform, the pneumatic vibration-guiding suction disc is connected with a pneumatic distributor and a control device, and the pneumatic distributor is connected with a gas pressure inlet through a high-frequency valve. Through the vibration guiding of the pneumatic vibration-guiding suction disc on strips, the displacement sensor outputs strip vibration data, the data is processed through software, and a conclusion is drawn. The device can be applied to online flatness measurement and can also be used for fault diagnosis of flatness measurement. The operation of the device is non-contact, so that requirements of the static measurement model description of the strips, which has the characteristics of being high in surface cleanliness and the like, are met.

The invention provides a method and a device for channel measurement. The method and the device can be applied to the fields of Internet of Vehicles V2X, intelligent networked automobiles, automatic driving or unmanned driving and the like. In a channel reporting process of a sidelink, a sending end device of sidelink communication indicates one or more candidate time intervals to a receiving enddevice, and the receiving end device can try to acquire available PSSCH for sending a channel measurement report in time domain resources corresponding to the one or more candidate time intervals. A feasible scheme is provided for channel measurement of the sidelink.

The invention discloses an automobile brake disc flatness detection device, which is characterized in that two groups of measuring screws are symmetrically arranged on two sides of the upper part of abrake disc, the middle parts of the measuring screws penetrate through second threaded sleeves, the second threaded sleeves are in threaded fit with the measuring screws, and rotating sleeves are fixed at the front ends of the measuring screws; the rear portions of the rotating sleeves cover the outer sides of the front portions of the second threaded sleeves, scales are arranged on the outer surfaces of the second threaded sleeves, scale values are arranged on the outer sides of the rotating sleeves, the two sets of second threaded sleeves are symmetrically fixed to the lower end of the fixing frame, and the lower end of a lifting screw is inserted into a bearing which is fixed to the center of the top of the fixing frame. The lifting screw is in threaded fit with the first threaded sleeve, the first threaded sleeve is fixed to the top fixing table, the center positioning column is matched with a center hole of the brake disc, and the first positioning pin and the first fixing bolt penetrate through a fixing bolt hole of the brake disc. The device has the advantages of being high in detection precision, low in cost and high in adaptability.

The invention relates to the technical field of engineering blasting, and particularly discloses an automatic processing device for blast holes with karst caves. The automatic processing device comprises a capsule, a telescoping mechanism and a fixed box; the telescoping mechanism is arranged in a space in the capsule; the top of the telescoping mechanism is fixed with the top of the capsule; thetelescoping mechanism can stretch along the horizontal direction; a plunger is fixed at the lower end of the telescoping mechanism; the fixed box is fixed to the bottom of the capsule; a water inlet hole matched with the plunger is arranged on the fixed box; the fixed box communicates with the interior of the capsule through the water inlet hole; an oxygen generating agent is filled in the fixed box, and the oxygen generating agent is in contact with water to generate a large amount of oxygen; the capsule is filled with water; a first pull rope is fixed to the top of the telescoping mechanism;scales are arranged on the first pull rope; a second pull rope is fixed to the bottom of the telescoping mechanism; and the first pull rope and the second pull rope vertically and upwards penetrate through the top of the capsule and are in sliding sealing connection with the capsule. The invention aims to solve the problem that the effect is poor when a woven bag is adopted to block the blast holes.

The invention provides a high-precision cesium optical pump dynamic magnetic measurement system applied to ship-borne hard links in shallow water areas, which is characterized in that the system comprises a ship-borne quick-release connecting structure, a cesium optical pump acquisition system, an RTK (Real-Time Kinematic) positioning structure, an IMU (Inertial Measurement Unit) inertial navigation system, a watertight packaging probe cover and a power supply system; the ship-borne quick-release connecting structure is mounted on the lower side of the cesium optical pump acquisition system; the cesium optical pump acquisition system and the ship-borne quick-release connecting structure are connected with a ship through quick-release screws; the RTK positioning structure, the IMU inertial navigation system and the watertight packaging probe cover are installed on the upper side of the cesium optical pump acquisition system; and the power supply system is connected with the cesium optical pump acquisition system, the RTK positioning structure and the IMU inertial navigation system. The ship-borne cesium optical pump system is subjected to related modification and is equipped with an angle measurer, a carbon fiber telescopic pipe, a sealed waterproof probe outer cover and the IMU inertial navigation system, the whole set of device can be used independently, the model of a loading ship is not limited, and connecting devices can be changed according to different ships.

The invention relates to the technical field of municipal engineering, in particular to a high-efficiency laser mapping method based on municipal engineering. The method comprises the following steps:S1, a laser measuring instrument is checked to ensure that the laser measuring instrument is in a normal working state, the laser measuring instrument is fixed on a tripod, and the origin of coordinates is then determined; S2, the laser measuring instrument is placed at the origin, the horizontal direction of the tripod is leveled, and the laser measuring instrument is ensured to be in a horizontal state; S4, the data of the laser measuring instrument are transmitted wirelessly, the data are imported into a data processor, the data are processed by the data processor, the data are imported into a computer by USB, and image drawing is carried out; and S5, after image drawing, the drawing is printed by a printer. The measurement accuracy is ensured, and the operation is simple and convenient.