1. A method for detecting an abused sensor for determining a concentration of a medically significant component of a biological fluid placed upon the sensor, comprising the steps of:
a) placing the biological fluid sample upon the sensor;
b) applying a first signal to the biological fluid;
c) measuring a current response to the first signal;
d) repeating step (c) at least once;
e) calculating a normalized Cottrell Failsafe Ratio using the current response data;
f) applying a second signal having an AC component to the biological fluid;
g) measuring an AC response to the second signal; and
h) combining the normalized Cottrell Failsafe Ratio and the AC response to produce an indication of whether the sensor has been abused.
2. The method of claim 1, wherein the second signal is an AC signal.
3. The method of claim 1, wherein the first signal and the second signal are applied at least partially simultaneously.
4. The method of claim 1, wherein the AC response comprises admittance magnitude and phase angle information.
5. The method of claim 1, wherein the AC response comprises admittance phase angle information.
6. The method of claim 1, wherein the second signal comprises a number of frequencies, wherein the number is greater than one.
7. The method of claim 6, wherein the number is not less than two and not greater than five.
8. The method of claim 6, wherein the number is not less than two and not greater than ten.
9. The method of claim 6, wherein the number is greater than ten.
10. The method of claim 1, wherein the AC component of the signal has a frequency not less than 1 Hz and not greater than 20 kHz.
11. A method of determining a failure condition indicating an abused sensor in a blood glucose concentration test, comprising the steps of:
a) applying a first test signal having an AC component to a test sample;
b) measuring a first phase angle response to the first test signal;
c) applying a second test signal having an AC component to the test sample;
d) measuring a second phase angle response to the second test signal; and
e) determining a failure condition value based upon the first phase angle response the second phase angle response and a predetermined Cottrell Failsafe Ratio.
12. The method of claim 11, further comprising the steps of:
f) applying a test signal to the test sample;
g) measuring at least two current responses; and
h) determining the predetermined Cottrell Failsafe Raito based upon the sum of the current responses and a final current response.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A Building element for erecting inner walls, outer walls andor ceilings or roofs, preferably slightly slanted roofs of a building, said element consisting of an insulating core forming insulating layer, preferably made of mineral fibers bound by a binding agent, particularly rock wool andor glass wool fibers bound by an artificial resin, and of at least one preferably metallic covering layer that is arranged on the large surface of the insulating layer, with an adhesive layer interconnecting said covering layer and said insulating layer being arranged between the covering layer and the insulating layer, characterized in
that the layer (5) consists of a first, quick-binding adhesive and a second adhesive which is effective during the influence of direct fire at temperatures of up to and exceeding 1000\xb0 C., which adhesives are arranged in areas (6, 7) of the layer (5) that are separated from each other.
2. Building element according to claim 1, characterized in
that the first adhesive is formed as an organic singel or two-package adhesive.
3. Building element according to claim 1, characterized in
that the second adhesive comprises at least one inorganic component, e.g. on the basis of water glass, cement, gypsum andor other inorganic binding agents.
4. Building element according to claim 1, characterized in
that the areas (6, 7) of the adhesive as a whole form a full-surface coating on the insulating layer (2) andor an intermediate layer between the insulating layer (2) and the covering layer (3).
5. Building element according to claim 1, characterized in
that the areas (6, 7) of the two adhesives are arranged in an alternating fashion.
6. Building element according to claim 1, characterized in
that the first adhesive is formed to be foaming up.
7. Building element according to claim 1, characterized in
that the insulating layer (2) is comprised of large-formate mineral fiber boards.
8. Building element according to claim 6, characterized in
that the covering layer (3) consists of sheet elements which are profiled and which particularly show a geometry of beads, and that the foaming adhesive is arranged in each area of the portion spaced from the insulating layer (2), while in each area (6) resting on top of the insulating layer (2) a layer (5) of the second adhesive is arranged.
9. Building element according to claim 1, characterized in
that the adhesives are applied in the form of drops andor caterpillars.