5results about How to "Fast measurement" patented technology

This invention discloses a three-degree-of-freedom autocollimation angle measurement device and method based on a crosshair reticle, comprising a probe system, a target mirror system, and a calculation system. The probe system emits a collimated beam containing crosshair image information into the target mirror system. The target mirror system separates the collimated beam containing crosshair image information into two reflected beams parallel to the optical axis, each reflecting beam containing crosshair image information. The probe system also receives the two reflected beams parallel to the optical axis and images the crosshair images corresponding to the two reflected beams. The calculation system calculates the pitch and yaw angles of the target based on the initial and current coordinates of the crosshair image corresponding to one reflected beam parallel to the optical axis, and calculates the roll angle of the target based on the initial and current tilt angles of the crosshair image corresponding to the other reflected beam parallel to the optical axis. This invention enables rapid and high-precision three-degree-of-freedom angle measurement of distant targets.

This utility model relates to a camshaft angle measuring instrument. It includes a base plate, with a detection center and a follower center at each end of the base plate for abutting the camshaft. An encoder for detecting the rotation angle is mounted on the detection center, and a positioning component is provided between the detection center and the follower center. A limiting component is provided on one side of the base plate. This invention solves the technical problem that in the prior art, camshaft cam detection is generally done manually, measuring the angle of each cam on the camshaft. However, the camshaft has a large number of cams with varying angles, and each measurement requires rotating the camshaft, resulting in low efficiency and significantly impacting accuracy due to the frequent need to re-fix the camshaft after rotation.

The application discloses a free-form surface adaptive measurement device and method based on Fourier spot analysis, in particular to a free-form surface adaptive zero-position interferometer device for large surface shape deviation, and belongs to the field of optical detection. The device comprises a light source system, an adaptive compensation system, an interference system and a surface to be measured. The liquid crystal spatial light modulator is used for guiding aberration compensation of the adaptive element through analysis of Fourier transform spots of the system, and the dependence on an interference pattern is broken, so that the measurement range of the traditional adaptive interferometer is greatly expanded, and destructive modification of a traditional interferometer light path is not needed.

An analytical device for detecting multiple types of samples is disclosed. It can perform dry chemical analysis on a first type of sample using a first type of test strip and on a second type of sample using a second type of test strip. The device is configured with a first detection mode and a second detection mode. In the first detection mode, a transmission mechanism transmits the first type of test strip it carries in a first operating cycle. In the second detection mode, the transmission mechanism transmits the second type of test strip it carries in a second operating cycle. The first and second operating cycles are different. This analytical device is compatible with different types of samples and offers different detection modes for adaptation, thereby improving measurement speed.

The application relates to an electromagnetic wave vector distribution measuring system based on laser ionized air. The design generates plasma by laser ionizing air, the generated plasma interacts with the electromagnetic wave to be measured, the spatial position of the laser ionized air is adjusted by using a light source control system, electromagnetic wave signals after the plasma at different positions interacts with the electromagnetic wave to be measured are received, and the measurement of the amplitude and phase distribution of the electromagnetic wave at any position in space is realized. The application can not only realize the rapid measurement of the spatial electromagnetic wave distribution, but also avoid the influence of other fixtures, measuring media and the like on the electromagnetic wave distribution at the measured position, so that the application is a kind of rapid, flexible and accurate measurement means.