An infrared temperature sensor
An infrared temperature and sensor technology, used in instruments, scientific instruments, radiation pyrometry, etc., can solve the problems of infrared temperature sensor failure, inability to realize, and inability to detect temperature.
Active Publication Date: 2021-10-12
NINGBO FOTILE KITCHEN WARE CO LTD
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Problems solved by technology
During the use of the infrared temperature sensor, the lens on the surface is easily polluted, making the infrared temperature sensor invalid and unable to detect the real temperature, thus making it impossible for the smart cooker to use functions related to temperature data.
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Embodiment Construction
[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0014] Such as figure 1 , 2 The shown infrared temperature sensor includes a casing 1, an infrared light emitting element 2 arranged in the casing, an infrared light receiving element 3, and a lens 4 arranged on the casing and capable of being transmitted by infrared rays, wherein the infrared light emits The element 2 is arranged on the first side wall inside the casing 1, the infrared light receiving element 3 is arranged on the second side wall inside the casing 1, and the lens 4 is installed obliquely opposite to the first side wall and the second side wall. on the other side of the housing. In addition, the housing is also provided with a control element 5 electrically connected to the infrared light emitting element and the infrared light receiving element. The control element 5 can control the opening and closing of the external light...
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The invention relates to an infrared temperature sensor, which includes a casing, an infrared light emitting element arranged in the casing, an infrared light receiving element, and a lens arranged on the casing and capable of being transmitted by infrared rays, and is characterized in that: it also includes Control element; a comparison database is stored in the control element; during the actual use of the infrared temperature sensor, the control element obtains the first actual signal output by the infrared light receiving element when the infrared light emitting element is turned off, and the infrared light output signal output by the infrared light emitting element when the infrared light emitting element is turned on. The second actual signal output by the light receiving element; then query the comparison database to find the temperature values corresponding to the first reference signal and the second reference signal closest to the first actual signal and the second actual signal under the same lens cleanliness As the actual temperature value is output, the cleanliness of the found lens is also output. Compared with the prior art, the present invention has the advantage that it can obtain the pollution degree of the lens and the actual temperature of the measured object.
Description
technical field [0001] The invention relates to an infrared temperature sensor. Background technique [0002] In order to use heating devices such as stoves more safely, and to improve the intelligence of heating devices such as stoves, a temperature sensor needs to be installed to detect the temperature of heating objects such as cooking utensils. At present, contact temperature sensors or non-contact temperature sensors are usually used. As a commonly used non-contact temperature sensor, the infrared temperature sensor includes an infrared light source emitting element, an infrared light receiving element, and a surface lens. During the use of the infrared temperature sensor, the lens on the surface is easily polluted, making the infrared temperature sensor invalid and unable to detect the real temperature, thus making it impossible for the smart cooker to use functions related to temperature data. Contents of the invention [0003] The technical problem to be solved b...
Claims
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IPC IPC(8): G01J5/00G01J5/02G01J5/04
CPCG01J5/00G01J5/0003G01J5/02G01J5/04
Inventor 严力峰钟健郑军妹俞瑜
Owner NINGBO FOTILE KITCHEN WARE CO LTD