32results about How to "Affect imaging" 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 discloses conducting resin for a scanning electronic microscope and a preparation method thereof, which belongs to the technical field of resin composite materials. The conducting resin adopts epoxy resin as a base material, ethylene diamine as a curing agent, and tin-silver-copper powder or silver-coated copper powder as conductive particles, and comprises the following components by mass percent: 32-34% of epoxy resin, 3-4% of ethylene diamine and 62-65% of tin-silver-copper powder or silver-coated copper powder. Ethylene diamine is added into epoxy resin and simultaneously uniformly stirred; the conductive particles are added and stirred at the same time till the conductive particles are completely uniformly dispersed and glue-like mixture reaches a substantially cured degree; the glue-like mixture is added into a die; and the glue-like mixture is dried and cured at room temperature, and then samples are taken out. The conducting resin can fully meet the requirements of SEM (scanning electron microscope) observation.

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 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 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.

The invention provides a novel scanning tunneling microscope design structure using a motor-scanning head separation technique. A motor and a scanning head are separated, the scanning head is clamped at a guide rail independently by a spring piece, and the motor is responsible for pushing the scanning head to a tunnel current zone; and then the scanning head retreats autonomously. The scanning head is composed of a probe, a probe rack, a scanning tube, a corundum pedestal, and a corundum pipe and the like. Therefore, influences on imaging of the scanning head by interference factors like thermal drift and electric fluctuating caused by the motor can be prevented and thus imaging becomes clear.

The invention discloses a multi-degree-of-freedom sample rod, which comprises a shell and a rotating shaft. A skeleton is arranged between the shell and the rotating shaft, and the skeleton is coaxial with the shell and the rotating shaft. When assembling, make the rotating shaft and frame coaxial, and then put the rotating shaft-skeleton into the shell, so that the rotating shaft, frame and shell are coaxial, and the installation accuracy is improved; in addition, the frame also provides the installation position for the rotating shaft drive assembly, and the frame also plays a role The function of separating the shaft from the wire and preventing the wire from interfering with the movement of the shaft.

The invention discloses a multi-degree-of-freedom sample rod with a rotating shaft driving assembly, which includes a casing and a rotating shaft, at least one set of rotating shaft driving assemblies is arranged between the casing and the rotating shaft, and each group of rotating shaft driving assemblies includes two symmetrically arranged drive units , the driving unit includes a substrate, electrodes and piezoelectric ceramic sheets. By setting multiple sets of rotating shaft drive components, the rotating shaft can rotate and move axially, so as to realize the driving of the sample rod with multiple degrees of freedom.