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US 12,474,222 B2Granted
Temperature sensor
AssigneeWIKA Alexander Wiegand SE & Co. KG
InventorUlrich Staab
Life of this patent
Estimating the term…
Abstract
A temperature sensor, having a first conductor made of a first material comprising an end section, a second conductor made of a second material, which differs from the first material, comprising an end section, and a casing for receiving the end sections of the two conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure. According to the invention, a measuring point body structure is provided, which is arranged within the casing or on the casing, wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure and the measuring point body structure comprises a barrier material.
Claims20
A temperature sensor comprising:
- a first conductor made of a first material comprising an end section;
- a second conductor made of a second material, which differs from the first material, the second conductor comprising an end section;
- a casing for receiving the end sections of the first and second conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure;
- and
- a measuring point body structure arranged within the casing or on the casing,
- wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure,
- wherein the measuring point body structure comprises a barrier material, and
- wherein, when compared at a same temperature, the barrier material has a lower diffusion coefficient for at least one foreign component than the materials of the first and second conductors, the at least one foreign component being present in the process atmosphere or in the process fluid or in the material of the casing or in the material of the surface of the process structure.
5 more elements
A temperature sensor comprising:
- a first conductor made of a first material comprising an end section;
- a second conductor made of a second material, which differs from the first material, the second conductor comprising an end section;
- a casing for receiving the end sections of the first and second conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure;
- and
- a measuring point body structure arranged within the casing or on the casing,
- wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure,
- wherein the measuring point body structure comprises a barrier material, and
- wherein, when compared at a same temperature, the barrier material has a lower diffusion coefficient for at least one intrinsic component than the materials of the first and second conductors, the at least one intrinsic component being present in the material of the first conductor or in the material of the second conductor.
5 more elements
A temperature sensor comprising:
- a first conductor made of a first material comprising an end section;
- a second conductor made of a second material, which differs from the first material, the second conductor comprising an end section;
- a casing for receiving the end sections of the first and second conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure;
- a measuring point body structure arranged within the casing or on the casing;
- a third conductor made of a third material, the third conductor comprising an end section;
- and
- a fourth conductor made of a fourth material, which differs from the third material, the fourth conductor comprising an end section,
- wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure,
- wherein the measuring point body structure comprises a barrier material, and
- wherein the third conductor and the fourth conductor directly or indirectly form a reference junction in or on the measuring point body structure.
7 more elements
A temperature sensor comprising:
- a first conductor made of a first material comprising an end section;
- a second conductor made of a second material, which differs from the first material, the second conductor comprising an end section;
- a casing for receiving the end sections of the first and second conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure;
- and
- a measuring point body structure arranged within the casing or on the casing,
- wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure,
- wherein the measuring point body structure comprises a barrier material, wherein the end sections of the first and second conductors are electrically connected to each other via at least one section of the measuring point body structure or via a section of the barrier material of the measuring point body structure and at least one section of the casing, and
- wherein the measuring point body structure comprises two separate measuring point bodies, wherein each of the measuring point bodies receives an end section of one of the first or second conductors or is in direct contact with the end section, and wherein the measuring point bodies are formed of the barrier material.
5 more elements
A temperature sensor comprising:
- a first conductor made of a first material comprising an end section;
- a second conductor made of a second material, which differs from the first material, the second conductor comprising an end section;
- a casing for receiving the end sections of the first and second conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure;
- and
- a measuring point body structure arranged within the casing or on the casing,
- wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure,
- wherein the measuring point body structure comprises a barrier material,
- wherein the end sections of the first and second conductors are electrically connected to each other via one or more material sections of the measuring point body structure or via a section of the barrier material of the measuring point body structure,
- wherein the measuring point body structure comprises a single measuring point body, wherein the measuring point body receives the end sections of the first and second conductors or at least is in direct contact with the end sections, and wherein the measuring point body is formed of the barrier material, and
- wherein the measuring point body has a partition wall that is arranged between the end sections of the first and second conductors, the partition wall having a thickness of at least 0.1 mm, and/or wherein an outer wall of the measuring point body, which surrounds the end section of the first conductor and/or the end section of the second conductor, has a thickness of at least 0.1 mm.
7 more elements
A temperature sensor comprising:
- a first conductor made of a first material comprising an end section;
- a second conductor made of a second material, which differs from the first material, the second conductor comprising an end section;
- a casing for receiving the end sections of the first and second conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure;
- and
- a measuring point body structure arranged within the casing or on the casing,
- wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure,
- wherein the measuring point body structure comprises a barrier material,
- wherein the end sections of the first and second conductors are electrically connected to each other via one or more material sections of the measuring point body structure or via a section of the barrier material of the measuring point body structure,
- wherein the measuring point body structure comprises:
- a single measuring point body that receives the end sections of the first and second conductors or at least is in direct contact with the end sections, the single measuring point body being formed of the barrier material, or
- two separate measuring point bodies that each receive an end section of one of the first or second conductors or is in direct contact with the end sections, the two separate measuring point bodies being formed of the barrier material and
- wherein the single measuring point body or the two separate measuring point bodies are formed by a coating or a finish of the end section of at least one of the first or second conductors with the barrier material or by wrapping the end section of at least one of the first or second conductors in a film made of the barrier material.
9 more elements
A temperature sensor comprising:
- a first conductor made of a first material comprising an end section;
- a second conductor made of a second material, which differs from the first material, the second conductor comprising an end section;
- a casing for receiving the end sections of the first and second conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure;
- and
- a measuring point body structure arranged within the casing or on the casing,
- wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure,
- wherein the measuring point body structure comprises a barrier material,
- wherein the end sections of the first and second conductors are electrically connected to each other via one or more material sections of the measuring point body structure or via a section of the barrier material of the measuring point body structure,
- wherein the measuring point body structure comprises:
- a single measuring point body that receives the end sections of the first and second conductors or at least is in direct contact with the end sections, the single measuring point body being formed of the barrier material, or
- two separate measuring point bodies that each receive an end section of one of the first or second conductors or is in direct contact with the end sections, the two separate measuring point bodies being formed of the barrier material, and
- wherein the single measuring point body or the two separate measuring point bodies are arranged in or on the casing by press-fitting.
9 more elements
A temperature sensor comprising:
- a first conductor made of a first material comprising an end section;
- a second conductor made of a second material, which differs from the first material, the second conductor comprising an end section;
- a casing for receiving the end sections of the first and second conductors and for positioning in a process atmosphere or in a process fluid and/or on a surface of a process structure;
- and
- a measuring point body structure arranged within the casing or on the casing,
- wherein the first conductor and the second conductor directly or indirectly form a thermocouple in or on the measuring point body structure,
- wherein the measuring point body structure comprises a barrier material, and
- wherein, when compared at a same temperature, the barrier material has a higher thermal conductivity and/or a lower electrical resistance and/or a higher chemical inertia and/or a lower catalytic force than the materials of the first conductor and/or the second conductor and/or the casing.
5 more elements
Dependencies are inferred from the claim text.