Currently in R&D

Simulator

Glucose, oxygen, and temperature development bench.

SIMULATION ONLY NOT FOR MEDICAL USE SELF-TEST

Modelo provisional de simulación. Glucosa, oxígeno y temperatura son canales independientes. Ningún coeficiente de esta página es un dato médico ni una curva de electrodo real.

Provisional simulation model. Glucose and oxygen are independent electrochemical channels. Temperature is a third channel. SIMULATED NOT FOR MEDICAL USE PROVISIONAL

Running self-test…

BioSense sensor

Three independent channels. Each block shows the live simulated value.

GLUCOSE SENSOR

SENSOR

—

GLUCOSE TIA

—

FILTER

—

ADC CH1

—

counts

OXYGEN SENSOR

SENSOR

—

nA · sim

OXYGEN TIA

—

FILTER

—

ADC CH2

—

counts

TEMPERATURE

SENSOR

—

°C

TEMP CHANNEL

CH3

PROVISIONAL

ADC CH3

—

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BIOSENSE ALGORITHM

ESTIMATED GLUCOSE

—

mg/dL · SIMULATED

OXYGEN READING

—

sim · PROVISIONAL

TEMPERATURE

—

°C

SIGNAL QUALITY

—

GOOD / WARNING / INVALID

GLUCOSE GLUCOSE CALIBRATION — PROVISIONAL

—

mg/dL

OXYGEN OXYGEN MODEL — PROVISIONAL

—

sim · simulated unit

TEMPERATURE TEMPERATURE COMPENSATION — PROVISIONAL

—

°C

—

Glucose model

IDLE

Simulated glucose 40 – 400 mg/dL mg/dL

— mmol/L

mmol/L = mg/dL / 18.01559. The scenario drives this value when it is not Stable or Custom.

Scenario simulated signals only

t = 0.0 s · step 0.1 s · buffer 120 s · charts 60 s

Actual glucose SIMULATED

—

mg/dL

Estimated glucose NOT FOR MEDICAL USE

—

mg/dL · SIMULATED

Absolute error

—

mg/dL

Percentage error

—

% of actual

Raw current: —
Temperature compensated: —
Recovered current: —
Current error: —
VREF: —
VOUT: —
ADC count: —
ADC maximum: —
ADC LSB: —
Voltage reconstructed: —
Glucose fc: —
Glucose RC: —
Oxygen current: —
Oxygen TIA VOUT: —
ADC CH2: —
Oxygen fc: —

GLUCOSE ESTIMATION

Actual glucose vs estimated glucose

GLUCOSE CURRENT

Sensor current vs recovered current

GLUCOSE TIA VOUT

TIA voltage vs filtered voltage

ADC CH1 / CH2

Glucose and oxygen counts

OXYGEN SIGNAL

Oxygen level vs recovered oxygen · sim

OXYGEN CURRENT

Oxygen sensor current

OXYGEN TIA VOUT

Oxygen TIA voltage vs filtered voltage

ENVIRONMENT

Oxygen and temperature on separate axes

Charts show the last 60 s once the simulation is running. Noise is applied only while running, and only to each sensor current.

Presets

Glucose sensor

GLUCOSE CALIBRATION — PROVISIONAL. Not a characterized electrode.

Sensitivity nA/(mg/dL) Baseline current nA Noise RMS 0 – 50 nA Drift −50 – +50 nA

I_sensor = glucose · sensitivity + baseline + drift + noise

Baseline and drift are subtracted in the estimate using these configured values. Noise is not removed. Noise changes only while the simulation runs.

Glucose TIA

VCC 3.3 V

VREF V

RF preset or custom

CF preset or custom

fc — · RC —

VOUT = VREF + I(A) · RF

fc = 1 / (2π · RF · CF)

nA is converted to A before the gain. The discrete low-pass runs on VOUT during the simulation. Raise CF to see the lag. This TIA does not share state with the oxygen TIA.

Oxygen sensor

OXYGEN MODEL — PROVISIONAL. Unit “sim” is a simulation scale, not mmHg and not saturation.

Oxygen level 0 – 100 sim sim Sensitivity nA/sim · PROVISIONAL Baseline current nA Noise RMS 0 – 50 nA Drift −50 – +50 nA

VCC 3.3 V

Oxygen TIA VREF V

Oxygen TIA RF preset or custom

Oxygen TIA CF preset or custom

fc — · RC —

I_oxygen = level · sensitivity + baseline + drift + noise

OXYGEN → GLUCOSE INFLUENCE Oxygen influence coefficient % per sim · default 0

O2 COMPENSATION MODEL: PROVISIONAL. Off, or a coefficient of 0, leaves the glucose channel unchanged. This is not a glucose-oxidase model.

ADC

One converter, three channels. CH1 glucose, CH2 oxygen, CH3 temperature placeholder. Bits and ADC reference are shared. Counts are independent.

Resolution Reference voltage V

count = round(VOUT / VREF_ADC · (2^N − 1))

V_ADC = count / (2^N − 1) · VREF_ADC

Environment

Temperature 30 – 42 °C °C Temperature coefficient PROVISIONAL %/°C

factor = 1 + (k/100) · (T − 37)

TEMPERATURE COMPENSATION — PROVISIONAL. k = 0 disables the effect. This is not a medical temperature compensation. The physical glucose current is multiplied by the factor; the algorithm divides it back out.

Metrics

No samples yet. Metrics use the 120 s history buffer.

Mean error

—

mg/dL

Mean absolute error

—

mg/dL

RMSE

—

mg/dL

Maximum error

—

mg/dL · |error|

ADC quantization error

—

µV · mean |V − V_ADC|

Glucose TIA saturation

samples since reset

Oxygen TIA saturation

samples since reset

Glucose ADC clipping

samples since reset

Oxygen ADC clipping

samples since reset

Glucose noise RMS

—

nA · buffer

Oxygen noise RMS

—

nA · buffer

Calibration sweep

Steady-state points at the current electronics settings. Noise is off so the table is repeatable. Baseline and drift are removed with the configured model. SIMULATED · NOT FOR MEDICAL USE.

Actual glucose	Sensor current	VOUT	ADC	Estimated glucose	Error
No sweep yet.

Experiments

Steady-state points from 0 to 120 s. They use the current electronics and the oxygen-influence toggle. Experiments 1–3 force noise and drift to 0. SIMULATED · NOT FOR MEDICAL USE.

1 Constant glucose / variable oxygen · 2 Constant glucose / variable temperature · 3 Constant environment / variable glucose · 4 Combined disturbance.

Time	Actual glucose	Oxygen	Temperature	Glucose current	Oxygen current	Glucose VOUT	Oxygen VOUT	ADC CH1	ADC CH2	Estimated glucose	Error	Signal quality
No experiment yet.

ENGINEERING DEBUG

Temperature channel

Temperature: —
Temperature coefficient: —
Temperature correction: —

BioSense algorithm

Raw glucose: —
Oxygen correction: —
Temperature correction: —
Estimated glucose: —
Error: —
Signal quality: —

Simulator

BioSense sensor

SENSOR

GLUCOSE TIA

FILTER

ADC CH1

SENSOR

OXYGEN TIA

FILTER

ADC CH2

SENSOR

TEMP CHANNEL

ADC CH3

ESTIMATED GLUCOSE

OXYGEN READING

TEMPERATURE

SIGNAL QUALITY

GLUCOSE GLUCOSE CALIBRATION — PROVISIONAL

OXYGEN OXYGEN MODEL — PROVISIONAL

TEMPERATURE TEMPERATURE COMPENSATION — PROVISIONAL

Glucose model

Actual glucose SIMULATED

Estimated glucose NOT FOR MEDICAL USE

Absolute error

Percentage error

ADC

Environment

Metrics

Mean error

Mean absolute error

RMSE

Maximum error

ADC quantization error

Glucose TIA saturation

Oxygen TIA saturation

Glucose ADC clipping

Oxygen ADC clipping

Glucose noise RMS

Oxygen noise RMS

Simulation results

Simulation ID

Date / time

Duration

Samples

Sampling interval

Signal quality

Glucose MAE

Glucose RMSE

Max |error|

Oxygen MAE

Mean temperature

Exports

Calibration sweep

Experiments

Glucose channel

Oxygen channel

Temperature channel

BioSense algorithm

Internal checks