Measuring device with penetrating electrode
AssigneeTesto AG
InventorAndreas Derr
Life of this patent
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Abstract
The invention relates to a measuring device having a penetrating electrode. Said elongated electrode of the measuring device is movably mounted in axial direction thereof. In case of a load or a shock, it can absorb said load to a given degree in the housing of said measuring device. Said shock-absorbing characteristic makes it possible to largely prevent breaking of the first electrode that is preferably configured in the form of a glass electrode. The invention also relates to a measuring device, to a method for the production and the application of said measuring device.
Claims29
A measuring device, comprising:
- an elongated first electrode having a longitudinal axis for insertion into a material to be measured;
- a housing which at least partially surrounds the first electrode, wherein the first electrode is movable in relation to the housing in the axial direction of the longitudinal axis;
- a receptacle device that accommodates an end of the first electrode, wherein the housing has a base plate on a side of the receptacle device and the receptacle device is part of the base plate, and wherein the base plate is made of an elastic material;
- a chamber which is enclosed by the housing and is tightly sealed with respect to the outside, wherein the base plate tightly seals a lower area of the chamber;
- and
- contact rods, wherein at least one of the contact rods is connected to the first electrode, and wherein the contract rods protrude through a base plate and are bent on a bottom side of the base plate so that the bent ends of the contact rods are threaded into eyes provided on the bottom side of the base plate.
A portable pH meter having a modular replaceable pH measuring device, wherein said measuring device includes:
- an elongated first electrode having a longitudinal axis for insertion into a material to be measured;
- a housing which at least partially surrounds the first electrode, wherein the first electrode is movable in relation to the housing in the axial direction of the longitudinal axis;
- a receptacle device that accommodates an end of the first electrode, wherein the housing has a base plate on a side of the receptacle device and the receptacle device is part of the base plate, and wherein the base plate is made of an elastic material;
- a chamber which is enclosed by the housing and is tightly sealed with respect to the outside, wherein the base plate tightly seals a lower area of the chamber;
- and
- contact rods, wherein at least one of the contact rods is connected to the first electrode, and wherein the contract rods protrude through a base plate and are bent on a bottom side of the base plate so that the bent ends of the contact rods are threaded into eyes provided on the bottom side of the base plate.
A method for measuring pH, comprising:
- inserting a measuring device into a material to be measured, wherein said measuring device includes:
- an elongated first electrode having a longitudinal axis for insertion into a material to be measured;
- a housing which at least partially surrounds the first electrode, wherein the first electrode is movable in the axial direction of its longitudinal axis, and wherein said first electrode is surrounded by a polymer protolyte material;
- a receptacle device that accommodates one end of the first electrode, wherein the housing has a base plate on a side of the receptacle device and the receptacle device is part of the base plate, and wherein the base plate is made of an elastic material;
- a chamber which is enclosed by the housing and is tightly sealed with respect to the outside, wherein the base plate tightly seals a lower area of the chamber;
- and
- contact rods, wherein at least one of the contact rods is connected to the first electrode, and wherein the contract rods protrude through a base plate and are bent on a bottom side of the base plate so that the bent ends of the contact rods are threaded into eyes provided on the bottom side of the base plate.
Dependencies are inferred from the claim text.