Patent ID: 8140294

Claim:
A method of estimating the temperature of a reaction site on a measurement strip in a blood glucose measuring device having a plurality of heat generating components and a temperature measuring element, the method comprising: determining, by a microcontroller, an activation initiation time, when a heat generating element becomes active, an activation duration time, how long a heat generating element had been active within a sample period, and a thermal magnitude Qx at which a heat generating element had been active within the sample period for each of the heat generating components; determining, by a microcontroller, a temperature elevation Ex for each of the heat generating components, wherein the temperature elevation Ex for each of the heat generating components is determined at least in part by an impulse response matrix [X i ] for times t 1 through t Nx , the activation initiation time, the activation duration time and the thermal magnitude Qx for each of the heat generating components; determining, by a microcontroller, a total temperature elevation E total of the glucose measuring device by summing the temperature elevation Ex of each of the heat generating components; reading, by a microcontroller, a temperature value T sensor provided by the temperature measuring element; and determining, by a microcontroller, a reaction site temperature estimation T site by subtracting the total temperature elevation E total from the temperature value T sensor provided by the temperature measuring element.