Ionic probe
First Claim
Patent Images
1. An ionic probe, comprising:
- an inner shell, an outer shell, and a middle shell configured to house one or more electrodes, wherein an outer surface of the inner shell is contiguous material that includes a first pH-sensitive material and a second pH-sensitive material;
wherein the inner shell is disposed within the middle shell and the middle shell is disposed within the outer shell;
an active electrode disposed in the inner shell that generates a measurement signal for an external test fluid;
a first reference electrode disposed in the inner shell in a first reference chamber formed by an inner divider in the inner shell, the first reference electrode generating a first reference signal;
a second reference electrode disposed in a second reference chamber formed by the inner shell and the middle shell, the second reference chamber generating a second reference signal;
wherein the measurement signal is provided by the ionic probe for comparison to the first reference signal and the second reference signal in order to determine an ionic measurement of the external test fluid.
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Abstract
An ionic probe is provided according to the invention. The ionic probe includes an active electrode configured to generate a measurement signal for an external test fluid, a first reference electrode configured to generate a first reference signal, and an at least second reference electrode configured to generate at least a second reference signal. The measurement signal is compared to the first reference signal and the at least second reference signal in order to determine an ionic measurement of the external test fluid.
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Citations
26 Claims
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1. An ionic probe, comprising:
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an inner shell, an outer shell, and a middle shell configured to house one or more electrodes, wherein an outer surface of the inner shell is contiguous material that includes a first pH-sensitive material and a second pH-sensitive material; wherein the inner shell is disposed within the middle shell and the middle shell is disposed within the outer shell; an active electrode disposed in the inner shell that generates a measurement signal for an external test fluid; a first reference electrode disposed in the inner shell in a first reference chamber formed by an inner divider in the inner shell, the first reference electrode generating a first reference signal; a second reference electrode disposed in a second reference chamber formed by the inner shell and the middle shell, the second reference chamber generating a second reference signal; wherein the measurement signal is provided by the ionic probe for comparison to the first reference signal and the second reference signal in order to determine an ionic measurement of the external test fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An ionic probe, comprising:
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an inner shell, an outer shell, and a middle shell, wherein the inner shell the middle shell house one or more electrodes and at least one of the inner shell and the middle shell has an outer surface that is contiguous material that includes a first pH-sensitive material and a second pH-sensitive material; wherein the inner shell is disposed within the middle shell and the middle shell is disposed within the outer shell; the inner shell forming an active chamber and including an active electrolyte solution and an active ion sensitive region that protrudes from the ionic probe and is adapted to contact an external test fluid, with the active ion sensitive region allowing ion interaction between the active electrolyte solution and the external test fluid; an active electrode located in the active chamber and configured to generate a measurement signal related to an ionic potential between the external test fluid and the active electrolyte solution; a middle divider located inside the inner shell and forming a first reference chamber, with the first reference chamber holding a first reference solution and including at least one first ion sensitive region formed in the inner shell, with the at least one first ion sensitive region allowing ion interaction between the first reference solution and a middle solution that is external to the inner shell at the first ion sensitive region; a first reference electrode located within the first reference chamber that generates a first reference signal related to an ionic potential between the first reference solution and the middle solution; the middle shell and the inner shell forming a second reference chamber and holding a second reference solution and including at least one second ion sensitive region formed in the middle shell, with the at least one second ion sensitive region allowing ion interaction between the second reference solution and an outer solution that is external to the middle shell at the second ion sensitive region; a second reference electrode located in the second reference chamber that generates a second reference signal related to an ionic potential between the second reference solution and the outer solution; wherein the measurement signal is provided by comparison to the first reference signal and the second reference signal in order to determine an ionic measurement of the external test fluid. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An ionic meter, comprising:
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an ionic probe comprising; at least an outer shell, an inner shell and a middle shell configured to house one or more electrodes, wherein an outer surface of the inner shell is contiguous material that includes a first pH-sensitive material and a second pH-sensitive material; wherein the inner shell is disposed within the middle shell and the middle shell is disposed within the outer shell; an active electrode disposed in the inner shell that generates a measurement signal for an external test fluid; a first reference electrode disposed in the inner shell in a first reference chamber formed by an inner divider in the inner shell, the first reference electrode generating a first reference signal; and a second reference electrode disposed within a second reference chamber formed by the inner shell and the middle shell, the second reference electrode generating a second reference signal; and a processor configured to receive the measurement signal, the first reference signal and the second reference signal and compare the measurement signal to the first reference signal and the second reference signal in order to determine an ionic measurement of the external test fluid. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification