The first section of the type and characteristics of the hydraulic cylinder Hydraulic piston-cylinder: the cylinder piston rod can be divided into double and single rod type of construction, its installation have fixed cylinder and the piston rod fixed in two ways. Dual fluid cylinder: the cylinder piston rod ends are double with a piston rod into the cylinder and piston rod fixed two fixed installation form....

About absolute encoder (Absolute Encoder) Absolute encoder is based on the principle of the bit computer code to design, such as: 8 yards (00000011), 16 yards, 32 yards and so on. These bits code information is reflected in the encoder code disc, is more dynasty channel groove, each groove successively with 2 lines, 4 lines, 8 lines, 16 lines. . . . . . Choreography. The results of such an arrangement, such as a single-turn absolute terms, that is, the week 360 ° divided into four powers of 2, 8 th, 16 th,,,, higher bit 2 of 2, The higher precision, range is also greater....

Absolute rotary encoder mechanical mounting high-speed-side installation, low-end installation, auxiliary mechanical equipment installation and other forms. High-speed side installation: to the power of the motor shaft end (or geared), the advantage of this method is high resolution, due to the multi-turn encoder has 4096 turns, the motor rotation number within this scale range, can be improved with a full range of fully resolution, drawback is that a moving object through a reduction gear, to return a gear clearance error, generally used for one-way control positioning. Additionally encoder mounted directly on the high-speed side, the motor must be less jitter, or easy to damage the encoder....

Single turn absolute rotary encoders to measure the rotation of the optical encoder of the Road engraved lines to obtain a unique code, when rotated more than 360 degrees, the encoding back to square one, this is not consistent with the principle of an absolute encoder only, so coding It can only be used to rotate 360 degrees within the range of measurement, known as single-turn absolute encoder....

Rotary incremental encoder output pulse is rotated by counting device to calculate its position, when the encoder does not move or power outage, rely on the internal memory to remember the location of a counting device. Thus, when the power failure, the encoder can not have any movement, when the call comes to work, the encoder output pulse process, it can not have interference and loss of pulse, or count device will calculate and zero offset memory, and this species shift amount is impossible to know in order to know the results only after the production error appears....

---- The sensor of physical quantities to be measured (e.g., length, speed, angle, acceleration, etc.) into readable, easy to handle another physical quantity (the most commonly used modern control is the electric signal), such a conversion processing means call the sensor....