深圳市展业达鸿科技有限公司

美国KROHN-HITE3988滤波器，KH3988滤波器详细描述美国KROHN-HITE3988滤波器，KH3988滤波器
美国KROHN-HITE3988滤波器规格   

Krohn-Hite3988Butterworth/Bessel双通道滤波器是仔细设计的滤波器系列之一，提供易于操作，可靠性性高。

KH3988滤波器在低通模式下提供0.03Hz至1MHz的可调谐频率范围，在高通模式下提供0.03Hz至300kHz的可调谐频率范围。这两种模式都可以通过002选项扩展到0.003Hz。频率响应特性在频域中进行干净滤波，或者线性相位（Bessel）可以最大限度地平坦（Butterworth），以提供卓越的脉冲滤波。
KH3988滤波器的每个通道是8极，宽范围，低通/高通滤波器或放大器，以0.1dB的步长提供70dB的增益。KH3988滤波器将接收0dB增益的10V峰值的输入信号，并具有可选择的交流或直流耦合。过载检测器是标准配置，可帮助用户检测输入信号或不正确的增益设置。用于存储前面板设置的九十九组非易失性存储器存储在电池支持的CMOS中，可以通过简单的命令调用。


 
美国KROHN-HITE3988滤波器，KH3988滤波器，可选功能应用于每个通道：

   双通道
   截止频率范围：0.03Hz至1MHz
   衰减斜率：48dB/八度
   可选择的过滤器模式：低通和高通
   可选择的回应：Butterworth和Bessel
   可选择的预过滤器和后过滤器增益
   可选输入类型：差分和单端放大器（过滤旁路）模式

KROHN-HITE3988，0.03Hzto1MHz，DualChannel，Butterworth/BesselProgrammableFilter
?TwoChannel
?CutoffFrequencyRange:0.03Hzto1MHz
?AttenuationSlope:48dB/Octave
?FilterModes:Low-PassandHigh-Pass
?Responses:ButterworthandBessel
?Pre-FilterandPost-FilterGains
?InputType:DifferentialandSingle-Ended
?Amplifier(FilterBy-Pass)Mode
?GPIBProgrammable

DESCRIPTIONofKROHN-HITE3988
TheKrohn-HiteModel3988Butterworth/Besseldualchannel
filterisoneofafamilyoffilterscarefullydesignedwiththeuserin
mind，providingeaseofoperation，reliabilityandprice
competitiveness.
The3988providesatunablefrequencyrangefrom0.03Hzto
1MHzinthelow-passmodeand0.03Hzto300kHzinthe
high-passmode.Bothmodesareextendeddownto0.003Hzwith
the002option.Thefrequencyresponsecharacteristiciseither
maximallyflat(Butterworth)forcleanfilteringinthefrequency
domain，orlinearphase(Bessel)toprovidesuperiorpulse
filtering.
Eachchannelofthe3988isan8-pole，widerange，
low-pass/high-passfilteroranamplifierprovidinggainsto70dB
in0.1dBsteps.The3988willacceptinputsignalsof?10Vpeakat
0dBgainandhasselectableacordccoupling.Overloaddetectors
arestandardandassisttheuserindetectinginputsignalsor
incorrectgainsettings.Ninety-ninegroupsofnon-volatile
memoryforstorageoffrontpanelset-upsarestoredin
battery-backedCMOSwhichcanberecalledwithasimple
command.
BAND-PASS/BAND-REJECTOPERATION
WiththeModel3988，theusercansimplyconnecttwochannelsin
seriestoachieveband-passoperationortwoinsummedparallel
forband-rejectoperation.
APPLICATIONS
Applicationsforthe3988areultra-soundmeasurements，random
noisetesting，soundrecording，suppressinginterferenceinaudio
communicationsandrelatedfieldsofmedical，geological，
geophysical，oceanographic，militaryandmore.Allthesefeatures
andmorearebackedwiththequalityKrohn-Hitehasprovidedin
filterssince1949.
SPECIFICATIONS
Specificationsapplyat25°C，±5°C.
FUNCTIONS(EachChannel)
Low-passfilter，high-passfilter，voltagegainamplifier.
FILTERMODE
Type:8-pole，Butterworth/Bessel.
Attenuation:48dB/octave.
TunableFrequencyRangefc:Low-pass，0.03Hzto1MHz
high-pass，0.03Hzto300kHz(option002，0.003Hz).
FrequencyResolution:3digits，0.1Hztomaxfc2digits，
0.03Hzto0.099Hz(option002，1digit，0.003Hzto0.009Hz
2digits，0.01Hzto0.099Hz).
CutoffFrequencyAccuracy:±1%，0.5Hzto50kHz±2%，
50.1kHztomaxfc±5%，0.03Hzto0.5Hz(option002，±5%，
0.003Hzto0.5Hz).
RelativeGainatfc:–3dB，Butterworth–12.6dB，Bessel.
High-PassBandwidth(0dBGain):>4MHz.