Japanese torsion spring 135 degrees

135 degree torsion spring is free state torsion Angle at 135 degree position, the spring produces torque or rotational force. The ends of the torsional springs are secured to the other components, which pull them back to their starting position as they rotate around the center of the spring. Although the spring is called a torsional spring, it is subject to bending rather than torsional stresses. Torsional springs can store and release angular energy or hold a device statically by rotating a moment arm around the central axis of the spring body. This type of spring is usually tightly wound, but the pitch between the springs reduces friction. They create resistance to rotational or rotating forces. Depending on the application, torsion springs can be designed to turn clockwise or counterclockwise to determine the turn direction of the spring.

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Oxygen pressure gauge no vegetable oil check

Precision butterfly spring in order to better ensure safety, it should be determined that there is no vegetable oil in the oxygen pressure gauge, you can carry out the range measurement verification. Before carrying out range measurement verification, it is necessary to check whether there is vegetable oil. The way is: the pure warm water into the bomb tube, after shaking, then the water is thrown into the container filled with cold water, if there is no colorful oil shadow on the river, you can feel that there is no vegetable oil.

Calibration of barometer measurement with detector needle

First, the detection meter and the range meter hand separately carry out the range measurement verification, and record the reading value, and then return the range meter hand to zero, and carry out the range measurement verification.

The difference between the two readings shall not exceed the square root of the larger allowable foundation deviation. Precision torsion spring to carry out the measuring range measurement verification, when tapping the instrument panel detection hand can not move.

Metrological verification of double - needle multi - tube barometer

First check the connection of the two pipes, the two pipes can not be connected. Subsequently, a barometer is installed with a tee joint to carry out range measurement verification. Two-needle multi-tube or two-needle multi-tube barometer should also check the difference between the two needle ranges, the error should not exceed the square root of the larger allowable base deviation. The two hands should harm each other.

In the two top of the head should be respectively coated with two watchhand tone the same paint, easy to identify.