5results about How to "Avoid Accuracy Impact" patented technology

The atomization device comprises an air adjusting assembly, a sealing part and a first shell, the air adjusting assembly comprises a fixed part and a movable part, the fixed part is provided with an air inlet hole, the movable part is provided with an air adjusting hole, and the movable part is slidably connected to the fixed part; the sealing piece is connected to the side, away from the movable piece, of the fixed piece and comprises a first sealing part, the first shell comprises a mounting groove partially containing the movable piece, the fixed piece and at least partially containing the sealing piece, and the first sealing part is in interference fit with the side wall of the mounting groove. When the atomization device is actually used, external air enters from the air inlet hole and does not enter from an unexpected position, namely a gap between the mounting groove and the air adjusting assembly, so that it can be guaranteed that the actual air inlet amount is controllable, and the adjusting precision of the air inlet amount is prevented from being affected.

This utility model relates to the field of high-precision calipers technology and discloses an automatic zeroing and positioning mechanism for high-precision calipers. It includes a worktable with multiple placement plates on top. The bottom of each placement plate is connected to the top of the worktable via a support rod. A fixing mechanism for limiting the caliper's position is located on the top of each placement plate. A movable plate is located above the placement plates, and a slide rail groove is located at the bottom of the movable plate. A first electric slide rail and a second electric slide rail are installed opposite each other inside the slide rail groove. The first and second electric slide rails are respectively connected to a first clamping plate and a second clamping plate via sliders. The top of the movable plate is connected to a transverse electric slide rail via a slider. An image recognition device is installed on the movable plate on one side of the slide rail groove. With this structure, the caliper can be automatically calibrated without manual operation, preventing changes in personnel from affecting the calibration accuracy and effectively improving the calibration quality of the product.

This utility model discloses a high-precision and low-cost analog signal isolation and conversion circuit, comprising: a resistor voltage divider circuit, a voltage follower circuit, a signal transmission modulation circuit, a first transformer, a signal coupling demodulation circuit, a signal output circuit, a Schmitt oscillator circuit, a DC / AC conversion circuit, and a second transformer; the input terminal of the resistor voltage divider circuit is connected to the signal input terminal, the output terminal of the resistor voltage divider circuit is electrically connected to the input terminal of the voltage follower circuit, the output terminal of the voltage follower circuit is electrically connected to the input terminal of the signal transmission modulation circuit, the output terminal of the signal transmission modulation circuit is electrically connected to the primary winding terminal of the first transformer, the secondary winding terminal of the first transformer is electrically connected to the input terminal of the signal coupling demodulation circuit, the output terminal of the signal coupling demodulation circuit is electrically connected to the input terminal of the signal output circuit, and the output terminal of the signal output circuit is connected to the signal output terminal.

This invention relates to the field of permanent magnet synchronous motor vector control technology, specifically to a rapid calibration method for permanent magnet synchronous motors in new energy vehicles. It includes a calibration table for the maximum torque-to-current ratio; a calibration table for the motor flux linkage; a calibration table for the motor inductance; and obtaining the target torque T. req And by consulting the calibrated lookup tables, the required d-axis current i to be output is obtained. dref and q-axis requested current i qref This method does not require the motor to operate at high speeds, reducing risks and minimizing the need for high-speed testing benches. It also offers high calibration efficiency and high control precision.

The utility model provides a wear -resisting aluminium profile with anti -oxidation coating relates to aluminium profile technical field, include: base layer, the inside of base layer is equipped with edge T type groove, the outer surface wall of base layer is provided with sand layer, the outer surface wall of sand layer is provided with transition layer. In the utility model, through setting up anti -oxidation wear -resisting coating and function layer, the wear resistance and corrosion resistance of aluminium profile surface have been enhanced, in the long -term use process, when the surface appears tiny scratch, depression, can through the material performance of self to tiny scratch, depression automatic repair, reduce the maintenance cost of this aluminium profile when using, possess continuous protection performance, avoid the influence of abrasion to equipment precision in use, the setting of anti -oxidation wear -resisting coating improves the adaptability and corrosion resistance of this aluminium profile to environment, avoids the problem that protection is limited when using in coastal area.