7results about How to "Avoid Reading Errors" patented technology

The application discloses a heat-resistant and wear-resistant elbow and straight pipe angle detection device and a use method thereof, and belongs to the technical field of pipe detection. The heat-resistant and wear-resistant elbow and straight pipe angle detection device comprises a bottom plate, and further comprises a detection seat, wherein the detection seat is vertically arranged on the bottom plate, and an arc-shaped groove is formed in the detection seat; a track frame is arranged on the outer side of the detection seat; a pushing assembly is arranged on one side of the detection seat; and a blanking channel is arranged on the lower side of the track frame; wherein the detection seat is provided with an adjusting assembly for adjusting the containing size of the track frame; the application integrates feeding, detection and blanking into an efficient single action through linkage pushing and an adjustable track; the deflection side plate and the displacement scale line are used to objectively quantify the elbow flatness error and replace subjective judgment; in combination with a measuring plate, the length of a straight pipe is synchronously detected, and efficient, accurate and adjustable continuous detection and automatic sorting are realized.

The utility model provides an automatic calibration device for a mercury sphygmomanometer, which comprises a standard pressure generating device, a standard pressure detecting device, a standard pressure detecting device, a standard pressure detecting device and an automatic calibration device, and is characterized in that the standard pressure generating device is used as a standard air source; the industrial camera is used for acquiring a sphygmomanometer image; the linear guide rail module is provided with an industrial camera and is used for driving the camera to move and keeping the visual angle of the camera always aligned with the convex liquid level of the mercury column during calibration; and the upper computer is used for setting the calibration device, processing calibration data and printing a calibration result. According to the sphygmomanometer calibration device, full-automatic calibration of the sphygmomanometer is achieved, manual intervention is not needed in the process, an experiment report can be output according to verification regulations after calibration is completed, labor cost is reduced, and calibration efficiency is improved.

The utility model relates to fire control monitoring display technical field, more particularly to a kind of fire engine liquid level monitoring display system, including liquid level lamp, controller and sensor, liquid level lamp is installed in the outside of fire engine liquid storage tank, is made of multiple linear arrangement's light emitting unit, for showing liquid level information in liquid storage tank;Controller is electrically connected with liquid level lamp and sensor, powers liquid level lamp and processes sensor signal;Sensor acquires liquid level data by pressure detection and transmits to controller.Liquid level lamp adopts transparent main body frame, is equipped with needle seat type interface and controller quick plug, sensor is sealedly connected with controller through screw thread interface.Controller integrates anti-reverse connection protection, hardware filter circuit and range calibration module, can accurately process signal and drive liquid level lamp dynamic display liquid level state.The utility model solves the technical problems, such as traditional liquid level monitoring device reading difficulty, easily disturbed, single display etc.

The utility model provides a mining dipmeter, and relates to the field of coal mine underground detection, the mining dipmeter comprises a support frame, a mounting frame is arranged outside the support frame, a dial is arranged outside the mounting frame, and a semi-ring is fixedly connected to the surface of one side, close to the support frame, of the mounting frame. And the mounting frame is movably arranged outside the supporting frame in a sleeving mode through a semi-ring, a damping box is fixedly connected to the surface of the mounting frame, and a connecting rod is arranged outside the damping box. Through cooperation of the connecting rod, the rotating shaft, the circular plate, the mounting shaft, the pull plate, the sliding rod, the push plate, the through hole and other structures, swing of the heavy hammer is converted into reciprocating motion of the push plate in the first cavity, swing is reversely restrained through damping force generated when air passes through the through hole, the heavy hammer is fast and stable, manual interference is not needed, and the working efficiency is improved. Therefore, the reading waiting time is obviously shortened, the measurement efficiency is improved, the reading error caused by the swinging of the heavy punch is avoided, and the measurement precision is improved.

This invention provides a voltage control method for erasing 3D NAND memory. When the bias voltage of the word line of a true memory cell is at the erase control voltage, the bias voltage of the well-doped region is raised to the erase working voltage and maintained. During the period when the bias voltage of the well-doped region rises to a first intermediate voltage, the bias voltage of the word line of the pseudo memory cell is maintained at a first preset voltage. Then, the word line of the pseudo memory cell is set to a floating state, wherein the first preset voltage is less than the first intermediate voltage. In this way, the voltage difference between the word line where the pseudo memory cell is located and the word line where the adjacent true memory cell is located is reduced, avoiding tunneling between the word line where the true memory cell is located and the word line where the pseudo memory cell is located, thereby avoiding threshold voltage drift of the pseudo memory cell, avoiding reduction of memory cell string current, and thus avoiding read errors of the true memory cell.

The utility model relates to a kind of fine grinding diameter automatic detection measuring machines, including pedestal;It is used for supporting product to be arranged at the center of pedestal support assembly;Detection mechanism is measured to product;Respectively arranged in the both ends of detection mechanism: driving mechanism for driving product rotation, including stepper motor, driven wheel driven by stepper motor, transmission wheel transmission connection with driven wheel by belt, the driven wheel is fixedly connected with limit board, and first centre is equipped with driven wheel coaxial on limit board;For clamping product clamping mechanism, including clamping cylinder, ejector rod driven by clamping cylinder, sliding table pushed by ejector rod, second centre is equipped for resisting product on the sliding table;The first centre and second centre cooperate clamping product and drive its rotation.Solve the conventional roundness and diameter detection need worker manual operation monitoring equipment to detect, leading to detection precision is poorer, the problem of low detection efficiency.

A pile foundation construction hole depth measuring device belongs to the technical field of measuring devices and comprises a base, a through groove is formed in the base from top to bottom in a penetrating mode, a measuring scale is movably arranged in an inner cavity of the through groove in the vertical direction, a supporting frame is fixedly and vertically installed at the top end of the base, a top seat is fixedly installed on the outer wall of the supporting frame, and a limiting groove is formed in the front side of the top seat. According to the utility model, when the measuring scale is used for measuring the depth of a pile foundation hole, the measuring scale can be always kept in a vertical state, errors of a detection result caused by the inclined measuring scale are avoided, the accuracy of the detection result is further ensured, the measuring scale can move more smoothly in the vertical direction by means of the rolling limiting roller, the friction force is reduced, and the measurement accuracy is improved. Abrasion caused by direct contact between the measuring scale and the inner wall of the limiting groove is avoided, bending reading is not needed, data recording is more convenient, reading errors caused by bending reading can be avoided, and the accuracy of pile foundation hole depth measurement is further guaranteed.