MA52824B1 - Insulated thermocouple probe with short response time - Google Patents
Insulated thermocouple probe with short response timeInfo
- Publication number
- MA52824B1 MA52824B1 MA52824A MA52824A MA52824B1 MA 52824 B1 MA52824 B1 MA 52824B1 MA 52824 A MA52824 A MA 52824A MA 52824 A MA52824 A MA 52824A MA 52824 B1 MA52824 B1 MA 52824B1
- Authority
- MA
- Morocco
- Prior art keywords
- probe
- probes
- response time
- insulated
- thermocouple
- Prior art date
Links
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- Testing Relating To Insulation (AREA)
Abstract
L'invention concerne une nouvelle façon de confectionner les sondes (3) de température qui utilisent les thermocouples (4) comme moyen de mesure. Il existe deux familles de sondes (3) qui utilisent les thermocouples (4) comme capteurs de température : la première famille : sondes isolées (2) ; la deuxième famille : les sondes non isolées (1). Les sondes (3) les plus répandues sont les sondes non isolées (1), elles ont l'avantage d'avoir un temps de réponse trop court (très réactives), mais elles présentent l'inconvénient d'être très sensibles aux parasites électriques présents dans leurs environnements (ground loop noise), ce qui rend la mesure de la température erronée voir même impossible puisque très instable et très variable d’un instant à un autre. Pour remédier aux problèmes des parasites électriques, les sondes isolées (2) permettent d'isoler le thermocouple (4) des parois internes de la sonde (3), empêchant ainsi qu'un courant électrique parasitaire ne puisse passer de la sonde (3) vers le thermocouple (4) puis vers le circuit de conditionnement ; cependant ce type de sonde (3) présente encore l'inconvénient d’un temps de réponse du thermocouple (4) plus long, ce qui engendre des retards de mesures le rendant hors d'usage dans certaines applications. Notre invention a pu joindre les avantages de chaque famille en créant une nouvelle sonde (3) qui utilise un matériau (5) isolant électriquement et en même temps un très bon conducteur thermique, ce qui permet d’avoir une sonde (2) sans parasites électriques et ayant un temps de réponse plus court que la sonde non isolée (1).The invention relates to a new way of making temperature probes (3) which use thermocouples (4) as measuring means. There are two families of probes (3) which use thermocouples (4) as temperature sensors: the first family: insulated probes (2); the second family: non-insulated probes (1). The most common probes (3) are non-insulated probes (1), they have the advantage of having too short a response time (very reactive), but they have the disadvantage of being very sensitive to electrical interference present in their environments (ground loop noise), which makes the measurement of the temperature erroneous or even impossible since it is very unstable and very variable from one moment to another. To remedy the problems of electrical noise, the insulated probes (2) make it possible to isolate the thermocouple (4) from the internal walls of the probe (3), thus preventing a parasitic electric current from passing from the probe (3) to the thermocouple (4) then to the conditioning circuit; however this type of probe (3) still has the disadvantage of a longer response time of the thermocouple (4), which generates measurement delays making it unusable in certain applications. Our invention has been able to combine the advantages of each family by creating a new probe (3) which uses an electrically insulating material (5) and at the same time a very good thermal conductor, which makes it possible to have a probe (2) without interference electrical and having a shorter response time than the uninsulated probe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MA52824A MA52824B1 (en) | 2021-03-24 | 2021-03-24 | Insulated thermocouple probe with short response time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MA52824A MA52824B1 (en) | 2021-03-24 | 2021-03-24 | Insulated thermocouple probe with short response time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MA52824A1 MA52824A1 (en) | 2022-09-30 |
| MA52824B1 true MA52824B1 (en) | 2022-11-30 |
Family
ID=83598744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MA52824A MA52824B1 (en) | 2021-03-24 | 2021-03-24 | Insulated thermocouple probe with short response time |
Country Status (1)
| Country | Link |
|---|---|
| MA (1) | MA52824B1 (en) |
-
2021
- 2021-03-24 MA MA52824A patent/MA52824B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MA52824A1 (en) | 2022-09-30 |
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