- 类型:光电编码器
- 品牌:Netzer
- 型号:DS-25-16-DF-S0
- 读出方式:数字或模拟
- 工作原理:绝对式
- 外型尺寸:7
- 适用范围:医疗、航天航空及其它
the ds-25 is a member of the ds series of electricencoders?, based on netzer precision proprietarytechnology. the electric encoder? offers manyadvantages - some unparalleledlow profile (7 mm).hollow, floating shaft.no bearings or other contacting elements.high resolution and precision.high tolerance to temperature extremes , shock,moisture, emi, rfi and magnetic fields.very low weight.holistic signal generationanalog or digital interfaces.the electric encoder? is unique in being holistic, i.e., itsoutput reading is the averaged outcome of the whole areaof the rotor , this feature makes the electric encoder?forgiving to mounting tolerances, mechanical wander etc.the absence of components such as ball bearings , flexiblecouplers, glass disc, light sources and detectors, alongwith very low power consumption makes the electricencoder? virtually failure free.
coarse and fine channels
the ds-25 has two operational modes: a coarse-mode
and a fine-mode - equivalent to two separate encoders
in a common housing. the modes are selectable by a logic
c/f command; logic “0” (0v to +0.5v) selects the coarsemode,
which has 3 electrical cycle/revolution (ec/r)
while logic ”1” (+3v to +5v) selects the fine-mode which
has 16 ec/r.
the switching time is less than 1 ms.
the coarse-mode outputs need to be read only upon
system initiation after which the encoder is permanently
switched to the fine mode. coarse and fine sine / cosine
pairs are used to calculate the initial absolute position,
from that point tracking the fine-channel outputs provides
the absolute mechanical rotation angle with the specified
accuracy and resolution.
all output signals are referenced to an internally generated
voltage vr (~2.25v)
absolute position calculation:
the analog sine / cosine outputs convey the electrical
angle of the coarse or fine signals. the absolute
mechanical angle is computed by digitizing the analog
signals and applying factory-supplied algorithms. please
refer to an-02 and an-03
西安彬雪电子科技有限公司
林瑞雪
15384547108
高新三路
