概要HYDAC流量传感器/德国贺德克流量传感器

控温稳定度：优于0.01℃/10min(油槽、水槽、
低温恒温槽);0.2℃/min(管式检定炉)；
对于不同金属来说，温度每变化一度，
电阻值变化是不同的，
而电阻值又可以直接作为输出信号。
Essential specifications are:
Nominal volume: up to 3,300 l,
Permitted operating pressure: up to 1,000 bar
Piston velocity: dependent on sealing
system, usually up to 5 m/s;
higher velocities possible,
Accumulator shell materials: carbon s
teel, stainless steel, aluminium.
The following advantages set HYDAC pisto
n accumulators apart:
minimal pressure differential
 between the fluid side and gas side,
large usable volumes,
variable installation position,

概要HYDAC流量传感器/德国贺德克流量传感器

monitoring of the piston
 position possible using various systems,
particularly suitable for back-up configurations,
extreme flow rates,
no sudden discharge of gas when seals are worn.
双金属杆和金属管传感器
电阻共有两种变化类型
正温度系数
温度升高 = 阻值增加
温度降低 = 阻值减少
负温度系数
金属随着温度变化，其电阻值也发生变化。
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概要HYDAC流量传感器/德国贺德克流量传感器