Sensor Signal Conditioner
Kyros Noir
kyrosengineering.com
Thermistor
RTD
Thermocouple
Wheatstone Bridge
Signal Chain
NTC Thermistor Parameters
Presets
10kΩ B3950
10kΩ B3380
100kΩ B4250
47kΩ B4050
NCP15XW682
R25 (Ω)
Beta (B25/85) (K)
Steinhart-Hart Coefficients (optional)
A
B
C
Leave blank to use Beta model. If provided, these override Beta.
Voltage Divider
Vref (V)
Series Resistor (Ω)
NTC Position
NTC on bottom (to GND)
NTC on top (to Vref)
Linearization
Target Center (°C)
Range ±(°C)
Calculate
Resistance vs Temperature
Voltage Divider Output vs Temperature
R-T Table
T (°C)
R (Ω)
Vout (V)
RTD Parameters
PT100
PT1000
PT500
R0 at 0°C (Ω)
Wire Configuration
2-Wire
3-Wire
4-Wire
Wire Resistance (Ω each)
Excitation Current (mA)
RTD Thermal Mass (mW/°C)
Self-heating dissipation coefficient (typ. 2-8 mW/°C for film RTD)
Callendar-Van Dusen Coefficients (IEC 60751)
A
B
C (T < 0°C only)
Standard IEC 60751 coefficients (α = 0.00385 Ω/Ω/°C)
Calculate
RTD Resistance vs Temperature
Measurement Error Analysis
R-T Table
T (°C)
R (Ω)
V (mV)
Wire Err (°C)
Self-Heat (°C)
Thermocouple Type
Type K
Type J
Type T
Type E
Type N
Type S
Type R
Type B
Temperature → Voltage
Hot Junction (°C)
Cold Junction (°C)
T → V
Voltage → Temperature
Measured Voltage (mV)
Cold Junction (°C)
V → T
Generate Curves
Thermocouple Voltage vs Temperature
Seebeck Coefficient (Sensitivity) vs Temperature
Bridge Configuration
Mode
Generic Bridge
Strain Gauge
R1
R2
R3
R4 (Sensor)
Nominal Gauge R (Ω)
Gauge Factor (GF)
Strain (µε)
Bridge Config
Quarter Bridge
Half Bridge
Full Bridge
Excitation Voltage (V)
Calculate
Bridge Output vs R4 Change
Bridge Sensitivity Analysis
Signal Chain Pipeline
🌡
Sensor
NTC 10k
→
◇
Bridge/Divider
Divider
→
▲
Amplifier
G=100
→
∿
Filter
LP 100Hz
→
⊞
ADC
16-bit
Sensor Configuration
Sensor Type
NTC Thermistor
RTD (PT100)
Thermocouple (K)
Strain Gauge
Custom
Min Output (mV)
Max Output (mV)
Source Impedance (Ω)
Sensor Accuracy (%)
Sensor Noise (µV rms)
Bridge / Divider Configuration
Topology
Voltage Divider
Wheatstone Bridge
None (pass-through)
Excitation (V)
Bridge Error (µV)
Amplifier Configuration
Gain
Bandwidth (kHz)
Input Noise (nV/√Hz)
CMRR (dB)
Offset Voltage (µV)
Gain Error (%)
Filter Configuration
Type
Low-Pass
Band-Pass
None
Cutoff Frequency (Hz)
Order
1st Order
2nd Order
3rd Order
4th Order
Filter Noise (µV rms)
ADC Configuration
Resolution (bits)
8-bit
10-bit
12-bit
14-bit
16-bit
18-bit
20-bit
24-bit
Vref (V)
Sample Rate (SPS)
ADC INL (LSB)
Analyze Chain
Signal Level Through Chain
Noise Budget Through Chain
Error Budget Summary
Stage
Signal (mV)
Noise (µV rms)
SNR (dB)
Error Contribution
