40results about How to "Improve displacement control accuracy" patented technology

The invention discloses a multi-degree-of-freedom sample rod with an optical fiber, which comprises a skeleton with an optical fiber groove. On the side of the skeleton, there is a fiber groove for the passage of optical fibers, which can not only avoid the wear and entanglement of the optical fiber, but also make the wiring beautiful; moreover, the fiber groove is connected with the front-end circuit board, and the front-end circuit board has the function of guiding the optical fiber, and the fiber head passes through the front-end circuit board, the optical fiber head has a small bending range, and the light wave will not be attenuated.

The invention provides a roller-lifting proportional and synchronous hydraulic control system, relating to a perforating machine. The invention solves the problem that the traditional hydraulic control system can not control the displacement conveniently. The roller-lifting proportional and synchronous hydraulic control system comprises a proportional valve, hydraulic control one-way valves, a change valve, a pressure relay, a synchronous motor and two roller-lifting hydraulic cylinders, wherein the three hydraulic control one-way valves are respectively connected with a port p, a port a and a port b of the proportional valve, and the port a of the proportional valve is connected with the pressure relay and an oil inlet of the synchronous motor through the hydraulic control one-way valves; two oil outlets of the synchronous motor are respectively connected with piston cavities of the two roller-lifting hydraulic cylinders, and piston rod cavities of the roller-lifting hydraulic cylinders are connected in parallel and then connected with the port b of the proportional valve through the hydraulic control one-way valves; and a port b of the change valve is connected with oil control ports of the hydraulic control one-way valves, an oil return port of the change valve is connected with return oil of the system, and oil drain ports of the hydraulic control one-way valves are connected with oil return pipes of the system. The roller-lifting proportional and synchronous hydraulic control system can be used for controlling the synchronous movement of a plurality of hydraulic cylinders by using one proportional valve.

The invention relates to a laser displacement transducer mounting support provided with an adjusting and self-calibrating structure. The laser displacement transducer mounting support comprises an upper adjusting frame, a pre-tightening spring, a lower adjusting frame, an adjusting bolt and a transducer base frame provided with a transducer. The transducer base frame is fixed on the upper adjusting frame. The lower end face of the upper adjusting frame and the upper end face of the lower adjusting frame are connected by virtue of a dovetail groove structure with inclination, the right end face of the upper adjusting frame is provided with an adjusting screwed hole, a right boss of the lower adjusting frame is internally connected with the adjusting bolt, the upper adjusting frame and the lower adjusting frame are connected in an adjustable way by virtue of the adjusting bolt and the screwed hole, the pre-tightening spring is sheathed outside the adjusting bolt, and the two ends of the pre-tightening spring are respectively connected with the right end face of the upper adjusting frame and the inner end face of the right boss of the lower adjusting frame in a compressed manner. When the laser displacement transducer mounting support provided by the invention is used for carrying out adjustment and preliminary calibration in a laser displacement transducer application field, auxiliary materials, devices or tools are not required to complete the adjustment and preliminary calibration, the laser displacement transducer mounting support provided by the invention is convenient to use and is provided with a corresponding standard, and displacement control accuracy is high.

The invention discloses a method for in-situ dynamic three-dimensional reconstruction of a sample using a multi-degree-of-freedom sample rod, which includes making the sample rod, loading the sample into the head end of the sample rod; The feature points are adjusted to be aligned with the axis of the sample rod; the rotating shaft is rotated 180° accumulatively, and a photo is taken every 1°; the photo obtained in step S3 is imported into the computer, and the three-dimensional reconstruction step is performed.

The invention provides an integrated intelligent temperature measuring device for a high-voltage switchgear, which includes a switchgear body, a temperature measuring actuator, a temperature measuring control module and a man-machine docking module. In the device room, the temperature measurement actuator includes a horizontal movement mechanism, a rotation mechanism, a second adjustment mechanism, a third adjustment mechanism, and a temperature measurement probe connected in sequence from top to bottom. The temperature measurement control module is connected with the temperature measurement actuator and the man-machine. Modules are connected accordingly. Through the human-machine docking module in the present invention, the temperature measurement of the upper and lower three-phase static contacts of the circuit breaker by the temperature measurement actuator can be realized, thereby realizing the automatic test of the contact temperature of the circuit breaker, which not only reduces the labor of workers strength, while improving the efficiency of temperature measurement.

The invention discloses a multi-degree-of-freedom sample rod with a sample clamp, which includes a sleeve and a pre-tightening screw, and includes a detachable sample clamp. The sample clamp includes a clamping part for loading samples and a connecting part. The invention can observe samples of various sizes, the sample clamp is provided for installing samples, and the sample and the sample clamp can be loaded into the front end of the sample rod as a sample component, which is convenient for installation and disassembly.

The invention relates to a multi-degree-of-freedom sample rod. The sample rod is provided with a nano positioning device, wherein the nano positioning device comprises a driving part, the driving partis a piezoceramic tube, the piezoceramic tube is a hollow tube body, one end of the piezoceramic tube is fixedly connected with a joint ball, and the other end is installed on the sample rod; the piezoceramic tube is provided with an inner surface and an outer surface, one surface of the piezoceramic tube is provided with a plurality of conductive area groups, each conductive area group comprisestwo symmetric conductive areas, the conductive areas are independent from each other, and each conductive area is provided with a conductive wire; and the other surface of the piezoceramic tube is awhole area conductive part. The multi-degree-of-freedom sample rod has three degrees of freedom, i.e. translation along the axis X, translation along the axis Y and rotation along the axis Z and has the advantage that the performance is stable when in reutilization.

The invention discloses a turning chatter suppression device based on a piezoelectric ceramic driver. The turning chatter suppression device comprises a tool rest, a flexible hinge, the piezoelectric ceramic driver, a front flange plate, a rear flange plate, a flexible connector, a vibrating sensor and a controller. The front end of the piezoelectric ceramic driver is connected with the rear end of the front flange plate through the flexible connector, the front end of the front flange plate is fixedly connected with the front end of the tool rest, and the rear end of the piezoelectric ceramic driver is fixedly connected with the rear end of the tool rest through the rear flange plate; the controlled is electrically connected with the vibrating sensor and the piezoelectric ceramic driver; the upper part and the lower part of the flexible hinge are provided with an elastic bending sheet respectively. When precision turning is carried out through the turning chatter suppression device, real-time online position regulation on a tool can be achieved; the turning chatter suppression device has the advantages of being simple in structure, high in rigidity, displacement control precision, response speed and output force, low in power consumption and the like, and can effectively suppress generation of turning chattering.

The invention discloses a multi-degree-of-freedom sample rod with self-positioning function, which includes a shell and a rotating shaft, the shell and the rotating shaft are coaxial, the shell has an inner cavity, the rotating shaft is located in the inner cavity of the shell, and a self-positioning mechanism is arranged in the inner cavity. No matter how the rotating shaft rotates, due to the function of the self-positioning mechanism, the central axis of the rotating shaft can always be automatically reset to the original position, so as to avoid the area to be observed of the sample from the observation field of the transmission electron microscope caused by the shift of the rotating shaft center.

The invention discloses a multi-degree-of-freedom sample rod. The sample rod comprises a framework and a rotating shaft, wherein a magnet is arranged at a tail end of the rotating shaft, the frameworkis provided with a leading-out circuit board, the framework is provided with a notch, the leading-out circuit board comprises a bent part, the bent part is located in the notch, and a magnetic fieldsensor is fixed to the bent part. The sample rod is advantaged in that the position information of the rotating shaft can be detected, when the rotating shaft rotates and moves back and forth, the magnetic field changes accordingly, the magnetic field sensor measures the magnetic field, the position information of the rotating shaft can be obtained through solving, the magnetic field sensor can befixed through soldering tin connection between the magnetic field sensor and the leading-out circuit board, short circuit of one pair of pins on the leading-out circuit board can be conducted, and the number of wires needing to be connected is reduced; the leading-out circuit board comprises a plane part and a bending part, the plane part and the bending part are vertically laid on a surface of the framework, the magnetic field sensor is fixed to the bending part, and the bending circuit board is small in occupied area and easy to disassemble.