44results about How to "Detection stability" patented technology

The invention discloses a spindle error correction and detection integrated device of a numerical control machine tool. The spindle error correction and detection integrated device comprises a workbench. A correction assembly is mounted on one side of the top end of the workbench. A slag removal mechanism is mounted at the bottom end of the correction assembly. The spindle error correction and detection integrated device is scientific and reasonable in structure and safe and convenient to use; the correction assembly is arranged, through the action of a correction chamber, a four-claw chuck, amilling cutter fixing block and a milling cutter head, measurement of milling can be worked out conveniently according to the measured unbalance amount, and therefore the unbalance amount can be removed precisely; through the action of a sliding groove, a transverse sliding block and a longitudinal sliding block, the milling cutter head can move conveniently in two dimensions, and the unbalance amount of different planes of a spindle is removed; the slag removal assembly is arranged, and through the action of a filter plate and a funnel, waste generated during milling can be conveniently collected and cleared away; through the action of a suction pipe, waste can enter the filter plate and the funnel conveniently through suction force, and therefore the clearing rate of the waste is increased; and operation is simple, and use is convenient.

The invention discloses an aircraft holder stability testing device and an aircraft holder stability testing method based on a digital camera. A fixed bracket is arranged on the periphery of an aircraft, the top part of the aircraft is fixed to the lower end of a supporting rod through a universal joint and is positioned at the center of the fixed bracket, an oilcloth is horizontally arranged at the bottom surface of a frame of the fixed bracket, a logo image is arranged on the oilcloth, the digital camera is in rigid connection with a body of the aircraft, and the aircraft and the digital camera are connected with a PC upper computer on the ground through a picture data transmission system; and the digital camera is calibrated firstly, a relation between a pixel position of an image of the digital camera and a logo point position on the oilcloth is established, the fixed bracket and the oilcloth are kept in parallel to the ground horizontally in flight, exterior orientation parameters are obtained through processing picture data acquired in real time, and the stability result of an aircraft holder is obtained through variance calculation. The aircraft holder stability testing device adopts the scientific and effective aircraft holder stability testing method for detection stability of the aircraft holder, is simple and reasonable in structure, high in universality and convenient to disassemble, and can be suitable for various kinds of aircraft holders.

The invention relates to an explosive performance testing device, in particular to an explosive friction sensitivity tester, which solves the problems of the prior art such as low automation degree, low test accuracy, difficulty in ensuring test condition and complex operation. The explosive friction sensitivity tester comprises a box body, a belt clip support fixed on the inner wall on one side in the box body, a friction belt chip inserted on the belt clip support, an impact cylinder fixed on the upper wall of the box body above the friction belt clip, a sample support base with a rotation hole and fixed on one side of the belt chip support, a support base inserted in the rotation hole on the sample support base for accommodating explosive, an explosive support tube inserted in the holeof the support base, and a top bar penetrating through the explosive support tube, wherein one end of the top bar corresponds to the friction belt clip and the other end of the top bar is butted against with a pre-tightening cylinder fixed on the sidewall of the box body. The invention has the characteristics of preciseness, feasibility, applicability, convenience, safety, etc. The invention can test the safety and the reliability of explosives, and has wide application range.

The invention discloses a thickness and stability detection method of a wafer edge measuring and detection tool, wherein the method comprises the following steps that a wafer edge removing process is completed on a standard piece; the standard piece is scanned and detected for a plurality of times through the wafer edge measuring and detection tool, and a first value combination is worked out and comprises a first maximum value and a first value; the mean value of the first value combination is respectively calculated, and a first mean value of each combination is worked out; an arithmetic mean value is calculated through the first maximum value, a first minimum value and the first mean value; daily scanning is carried out to the standard piece, a second value combination is worked out, and the absolute difference between the arithmetic mean value and a second maximum value, a second minimum value and a second mean value in the second value combination is respectively calculated; and a standard value is set, and the absolute difference and the standard value are respectively compared. According to the thickness and stability detection method of the wafer edge measuring and detection tool, the stability and the precision for a machine to detect edge bead rinse (EBR) / wafer edge exposure (WEE) can be detected more intuitively through the deviation.