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.

Abstract: A low-slope pH electrode (100) is provided according to an embodiment of the invention. The low-slope pH electrode (100) includes an electrode body (102), a pH-sensitive glass (122) fused into the electrode body (102), with the pH-sensitive glass (122) including a predetermined area, and a mask (124) formed over a predetermined portion of the predetermined area of the pH-sensitive glass (122) in order to form a low-slope pH characteristic. At least a portion of an ion exchange performed by the pH-sensitive glass (122) is blocked by the mask (124).

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.

Abstract: A multiple-electrode ion meter (100) is provided. The multiple-electrode ion meter (100) includes meter electronics (102) configured to receive a plurality of ionic concentration voltage measurements and generate an ionic concentration measurement from the plurality of ionic concentration voltage measurements and three or more individual electrode units (108) in communication with the meter electronics (102). The three or more electrode units (108) generate the plurality of ionic concentration voltage measurements to the meter electronics (102).

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.

Abstract: A unitary ionic probe is provided. The unitary ionic probe includes a substantially elongate body including a central axis (AA), a proximal end, and a distal end. The unitary ionic probe further includes an active ion sensitive region that is located on and bonded into an exterior of the elongate body in a region of the proximal end and an active electrode in ionic communication with the active ion sensitive region. The unitary ionic probe further includes a reference ion sensitive region that is located on and bonded into the exterior of the elongate body and is spaced-apart from the active ion sensitive region and a reference electrode in ionic communication with the reference ion sensitive region.

Abstract: A differential pH probe design uses a container having an outer surface and an inner volume, where the inner volume is divided into a first chamber and a second chamber. A first pH-sensitive area is located on the outer surface of the first chamber where the first pH-sensitive area is configured to be exposed to a sample. A second pH-sensitive area is located on the outer surface of the second chamber where the second pH-sensitive area is shielded from the sample and is exposed to a buffer solution. A first electrode is configured to detect a first voltage in the first chamber and a second electrode is configured to detect a second voltage in the second chamber. Circuitry is coupled to the first and second electrodes and configured to process the first voltage and the second voltage to determine a pH of the sample.

Abstract: A low-slope pH electrode (100) is provided according to an embodiment of the invention. The low-slope pH electrode (100) includes an electrode body (102), a pH-sensitive glass (122) fused into the electrode body (102), with the pH-sensitive glass (122) including a predetermined area, and a mask (124) formed over a predetermined portion of the predetermined area of the pH-sensitive glass (122) in order to form a low-slope pH characteristic. At least a portion of an ion exchange performed by the pH-sensitive glass (122) is blocked by the mask (124).

Abstract: A multiple-electrode ion meter (100) is provided. The multiple-electrode ion meter (100) includes meter electronics (102) configured to receive a plurality of ionic concentration voltage measurements and generate an ionic concentration measurement from the plurality of ionic concentration voltage measurements and three or more individual electrode units (108) in communication with the meter electronics (102). The three or more electrode units (108) generate the plurality of ionic concentration voltage measurements to the meter electronics (102).

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.

Abstract: A unitary ionic probe is provided. The unitary ionic probe includes a substantially elongate body including a central axis (AA), a proximal end, and a distal end. The unitary ionic probe further includes an active ion sensitive region that is located on and bonded into an exterior of the elongate body in a region of the proximal end and an active electrode in ionic communication with the active ion sensitive region. The unitary ionic probe further includes a reference ion sensitive region that is located on and bonded into the exterior of the elongate body and is spaced-apart from the active ion sensitive region and a reference electrode in ionic communication with the reference ion sensitive region.

Abstract: An ionic probe including an extrudable conductive junction material is provided. The ionic probe includes an outer shell holding the conductive junction material and an ionic probe assembly located at least partially within the outer shell, with the ionic probe assembly including an active ion sensitive region extending from a proximal end of the outer shell and further including an active electrode and reference electrode extending from a distal end. The ionic probe further includes at least one moveable seal that forces extrusion of a portion of the conductive junction material.

Abstract: A method for manufacturing a differential pH probe body by forming a plurality of tube shaped segments where each of the plurality of tube shaped segments comprises a first section formed from a pH sensitive material and a second section formed from a non-pH sensitive material. Coupling the plurality of tube shaped segments together end-to-end to form the differential pH probe body where the pH sensitive sections alternate with the non-pH sensitive sections and then closing one end of the differential pH probe body.

Abstract: A differential pH probe design uses a container having an outer surface and an inner volume, where the inner volume is divided into a first, a second, and a third chamber. A first pH-sensitive area is located on the outer surface of the first chamber where the first pH-sensitive area is configured to be exposed to a sample. A second pH-sensitive area is located on the outer surface of the second chamber where the second pH-sensitive area is shielded from the sample and is exposed to a first buffer solution. A third pH-sensitive area is located on the outer surface of the third chamber where the third pH-sensitive area is shielded from the sample and is exposed to a second buffer. A first electrode is configured to detect a first voltage across the first pH-sensitive area, a second electrode is configured to detect a second voltage across the second pH-sensitive area and a third electrode is configured to detect a third voltage across the third pH-sensitive area.

Abstract: A differential pH probe design uses a container having an outer surface and an inner volume, where the inner volume is divided into a first chamber and a second chamber. A first pH-sensitive area is located on the outer surface of the first chamber where the first pH-sensitive area is configured to be exposed to a sample. A second pH-sensitive area is located on the outer surface of the second chamber where the second pH-sensitive area is shielded from the sample and is exposed to a buffer solution. A first electrode is configured to detect a first voltage in the first chamber and a second electrode is configured to detect a second voltage in the second chamber. Circuitry is coupled to the first and second electrodes and configured to process the first voltage and the second voltage to determine a pH of the sample.