4results about How to "Avoid unmeasured" patented technology

The utility model discloses a portable measure ruler, including first ruler body and second ruler body. The portable measure ruler, the outside of first ruler body is provided with the second ruler body of sliding cover, and the inner chamber for first ruler body sliding is passed in on the second ruler body and is passed in and is established, and the front end of first ruler body is equipped with first measuring claw, and the front end of second ruler body is equipped with second measuring claw, and the front surface of first ruler body is equipped with first scale line, and the back of second ruler body is equipped with observation slot with first scale line, and the below of observation slot is equipped with second scale line, and first ruler body and second ruler body mutually positive direction plug -in, and first measuring claw and second measuring claw close to each other, thereby with the zero scale of first scale line, and first ruler body and second ruler body mutually reverse plug -in, and first measuring claw and second measuring claw are far from each other, thereby with the reference scale line measurement of second scale line, and the size extension of measurement is carried out, thereby avoided the problem that smaller size can not be measured.

The present invention belongs to the technical field of lithium batteries, and discloses a test method, device, equipment and storage medium for the internal resistance of a copper bar inside a battery. The test method includes: collecting the voltage of a battery pack, judging whether the jumper copper bar in the battery pack has an influence on the voltage of the battery pack; if so, controlling the voltage value of the battery pack to change under preset conditions, wherein, in the battery pack, the voltage value of the battery cell connected to the jumper copper bar can change with the change of the preset conditions and the resistance value of the jumper copper bar; when the voltage value of the battery pack stops changing, obtaining the highest voltage and the lowest voltage of the battery cell in the battery pack; and determining the compensation resistance value of the jumper copper bar according to the highest voltage, the lowest voltage and the preset conditions. The present invention solves the problems existing in the method for measuring the internal resistance of the jumper copper bar in the prior art.

The utility model relates to the technical field of measuring equipment, and discloses disassembly-free heat preservation template measuring equipment which comprises a conveying device, a supporting frame, a mounting plate, a through hole, a measuring rod, an anti-falling block and scales. During use, the conveying device drives the template to move, so that the template moves to the position below the mounting plate, then the measuring rods located in the through holes fall down, the lower ends of the measuring rods are supported on the upper surface of the template, and the scales on the measuring rods are measured. By the adoption of the structure, the template can be displaced through the conveying device; multiple points on the template can be measured through the measuring rods, and the problem that measurement cannot be carried out due to the fact that the contact surface of the template is uneven is solved through the mode of the multiple measuring rods; and the thicknesses of different positions of the template can be directly observed through a plurality of measuring rods and scales, which is convenient and fast.

The utility model discloses a universal bevel protractor for prefabrication and assembly of electromechanical pipelines, belongs to the technical field of universal bevel protractors, and solves the problems of complicated operation and low measurement efficiency caused by the fact that the universal bevel protractor needs to be reassembled for workpieces with different angle ranges in the prior art. The angle measuring device comprises an angle measuring disc with scales, a straight fixed ruler fixedly arranged on the angle measuring disc, and a straight movable ruler which is rotatably arranged on the angle measuring disc and is matched with the straight fixed ruler to measure the angle of a workpiece to be measured. The angle measuring device is used for measuring the angle of the workpiece in the electromechanical pipeline prefabrication assembly.