87results about How to "Fewer measurement steps" patented technology

The invention discloses a plane parallelism measurement device. The plane parallelism measurement device comprises a square or cylindrical shell (1), an A / D (analogue-to-digital) converter (8), a microcontroller (9), a power supply (10), a display screen (11) and a measurement module, wherein the measurement module comprises three grooves and three distance sensors, wherein one distance sensor is fixedly arranged in one groove correspondingly; the three grooves are all positioned on the same plane of the shell (1), and the central points of the three grooves are not arranged on the same line; the three distance sensors are respectively connected with the A / D converter (8); the A / D converter (8) is connected with the microcontroller (9), the power supply (10) and the display screen (11) in sequence; distance is measured by the three distance sensors at the same time and then is processed, and a measurement result is output through the display screen (11). By the plane parallelism measurement device, the distance between two planes are measured, the parallelism is judged directly and accurately, and the parallelism measurement of planes can be provided very well by utilizing automatic measurement.

The invention provides an automobile generator rotor inspection mechanism, which belongs to the technical field of machinery. According to the invention, a rotor comprises claw poles and a shaft body;an inspection mechanism comprises a base, a sliding seat arranged on the base in a sliding manner, and a second driving piece for driving the sliding seat to slide back and forth in the horizontal direction; three guide rods are arranged in the sliding direction of the sliding seat, one guide rod is provided with a first spring and two first base blocks which are symmetrically arranged, the firstbase blocks are arranged on the guide rods in a sliding mode, and the first spring enables the two first base blocks to move back to back; the other two guide rods are each provided with a spring unit and a pair of second base blocks which are symmetrically arranged, the second base blocks are arranged on the guide rods in a sliding mode, and the spring units enable the second base blocks to moveoppositely; the first base blocks are provided with first protruding heads abutting against the inner walls of the claw poles, the second base blocks are provided with second protruding heads, one pair of second protruding heads abut against the outer walls of the claw poles, and the other pair of second protruding heads abut against the outer side wall of the shaft body. A first displacement sensor is fixed on one first base block, and second displacement sensors are arranged on the two second base blocks. The mechanism is high in efficiency.

The invention discloses a single image rapid phase displacement system and method based on deflection angles. The system and method are characterized in that object light emitted by a laser device irradiates an object surface to be detected to form laser speckle interference, and return object light from the object surface to be detected irradiates a target surface array of a CCD camera; reference light emitted by the laser device irradiates the target surface array of the CCD camera at an angle alpha through a collimation component and a reflector, and generates a laser interference phenomenon on the target surface array of the CCD camera together with return object light, the angle alpha is adjusted, a 120-degree optical path difference exists between reference light of two adjacent pixel points, and the phase value of the laser interference phenomenon is calculated according to the numerical values of three adjacent pixel points in information recorded by the CCD camera. By means of the single image rapid phase displacement system and method, only a single image is used in speckle interference so that rapid phase detection can be achieved, and a PZT displacement micro-movement system required by the time phase displacement method does not need to be used.