动态储备:一个非常复杂的参数,需要更详细的解释。一个基本定义是:以 db 为单位的因子,通过该因子,杂散信号可能会大于设置的满量程灵敏度,而不会过度驱动锁定。杂散信号的定义很大程度上取决于频率范围。动态储备越高,输出直流稳定性越低。
例如,要选择开关设置代码“6”,必须将“高”电平信号连接到相应的控制输入引脚bit 1和bit2。当“禁用本地开关控制”(引脚c24)未激活(“低”或未连接)时,也可以进行混合操作,例如本地相位设置和远程控制灵敏度设置。
model
lia-bv-150-l
lia-bv-150-h
lia-bvd-150-l
lia-bvd-150-h
working frequency
5hz…10khz
50hz...120khz
5 hz ... 10 khz
50 hz ... 120 khz
time constants
3ms-10s
6 or 12 db/oct.
300 µs - 1 s
6 or 12 db/oct.
3 ms - 10 s
6 or 12 db/oct.
300 µs - 1 s
6 or 12 db/oct.
outputs
x = in phase, x= in phase, y = ,
10 v full scale, r= magnitude, 10 v full scale,
short-circuitprotected, short-circuitprotected,
monitor output monitoroutput
sensitivity (fullscale)
voltage: 3 µv - 1 v in 1-3-10steps
current: 30 pa - 10 µa in 1-3-10steps
voltage input
true-differential instrumentationamplifier, noise 12 nv/√hz
current input
transimpedance amplifier, gain 100kv/a, noise 0.4 pa/√hz
signal filter
highpass 0.2 hz - 1 khz and lowpass100 hz - 1 mhz,
user selectable
reference input
100 mv to 5 v, switchable tottl
phase
adjustable 0° - 360° with 8 bitresolution,
temperature drift<0,01°/°c
max. dyn. reserve
80 db
digital control
16 ttl/cmos inputs: 8 bit phase, 4bit time constant, 4 bit sensitivity
power supply
±15 v, +120 ma / -60 ma
dimensions
160 x 100 x 20 mm (l x w x h),weight 100 g (0.22 lbs)