1_3_2_PT100-Sensor_in_2-Leiter_Brueckenschaltung
FE
feslehrer
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Created Sep 30, 2026
·
Updated Oct 1, 2026

Details
Components
4
Schematic
Yes
Simulation
Interactive
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About this circuit
Imported circuit. 3 import warning(s) were generated.
Components used
Components used
4 components
NameManufacturerMPNCountType
SPICE netlist
* **************************************************
* Generated from CircuitSim Schematic
**************************************************
R_R1 N7 N2 4.7k Resistor_1d9c8cf9a__R_R1 temp=27
R_R3 N7 N9 4.7k Resistor_1d9c8cf9a__R_R3 temp=27
R_R4_A 0 N9 'max(1m,100*100/100)'
R_R4_B N9 N9 'max(1m,100*(100-100)/100)'
R_Re1 N11 N2 100k Resistor_1d9c8cf9a__R_Re1 temp=27
R_Re2 N10 N9 100k Resistor_1d9c8cf9a__R_Re2 temp=27
R_Rk1 N8 N10 100k Resistor_1d9c8cf9a__R_Rk1 temp=27
R_Rk2 N12 N13 100k Resistor_1d9c8cf9a__R_Rk2 temp=27
R_RL1 N1 N14 36m Resistor_1d9c8cf9a__R_RL1 temp=27
R_RL4 0 N15 36m Resistor_1d9c8cf9a__R_RL4 temp=27
R_Rq1 N11 0 100k Resistor_1d9c8cf9a__R_Rq1 temp=27
R_Rq2_A 0 N12 'max(1m,2k*100/100)'
R_Rq2_B N12 N12 'max(1m,2k*(100-100)/100)'
R_RT N14 N15 100 Resistor_1d9c8cf9a__R_RT temp=0
X_U1 N11 N10 N8 Param3TVIRTUAL_5a7fc2f7 IOS=0 AVOL=200k BW=100meg VOS=0 IBS=0 RI=10meg VOMP=12 VOMN=-12 RO=10
X_U2 N8 N12 N13 Param3TVIRTUAL_5a7fc2f7 IOS=0 AVOL=200k BW=100meg VOS=0 IBS=0 RI=10meg VOMP=12 VOMN=-12 RO=10
V_Uh N7 0 dc 5 ac 0 0 distof1 0 0 distof2 0 0
E_Ut Ut 0 N14 N15 1
E_Ua Ua 0 N13 0 1
E_Uab Uab 0 N2 N9 1
E_Ua1 Ua1 0 N8 0 1
V_Im N2 N1 0
**************************************************
* Models and supporting definitions follow
**************************************************
.model Resistor_1d9c8cf9a__R_R1 r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_R3 r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_Re1 r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_Re2 r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_Rk1 r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_Rk2 r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_RL1 r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_RL4 r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_Rq1 r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_RT r(tc1=3.85e-3 tc2=0 tnom=0)
.model Param3TVIRTUAL_5a7fc2f7_D1 d(n=0.1)
.subckt Param3TVIRTUAL_5a7fc2f7 in_pos in_neg out params: VOS=0 IBS=0 IOS=0 AVOL=200K BW=100M RI=10M RO=10 VOMP=12 VOMN=-12
* Input Stage: Rin, Ibias, Voffset
VOS in_pos 4 {VOS}
Ibias1 4 0 {IBS}
Ibias2 in_neg 0 {IBS}
IOS 4 in_neg {IOS/2}
Rin 4 in_neg {RI}
*Middle stage: Gain, frequency, voltage limiting
Bgain 0 6 I={v(4,in_neg)*AVOL/1meg}
R1 6 0 1meg
CP1 6 0 {AVOL/(2*3.141592653589793*1meg*BW)}
Vpos 9 0 {VOMP}
Dlimit_pos 6 9 Param3TVIRTUAL_5a7fc2f7_D1
Vneg 10 0 {VOMN}
Dlimit_neg 10 6 Param3TVIRTUAL_5a7fc2f7_D1
*Output stage: Buffer, output resistance
E2 7 0 6 0 1
Rout 7 out {RO}
.ends
**************************************************
* Simulation settings
**************************************************
.options rshunt=1e12
.tran 2u 1e12 0 2u
.save V(Ut) V(Ua) V(Uab) V(Ua1) I(V_Im)
.endTry this circuit yourself
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