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Bawo ni thermometer ṣe n ṣiṣẹ?

Awọn iwo: 0     Onkọwe: Aago Atẹjade Olootu Aaye: 2023-03-14 Oti: Aaye

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Gbogbo rẹ bẹrẹ pẹlu sensọ. Ko dabi thermometer ti o kún fun omi ati thermometer bi-metal, thermometer oni nọmba nilo sensọ kan.

Awọn sensọ wọnyi gbogbo gbejade boya foliteji, lọwọlọwọ, tabi iyipada resistance nigbati iyipada iwọn otutu ba wa. Iwọnyi jẹ awọn ifihan agbara 'analog' ni ilodi si awọn ifihan agbara oni-nọmba. Wọn le ṣe kika iwọn otutu ni ẹnu, rectum, tabi apa.

Awọn iwọn otutu itanna ṣiṣẹ ni ọna ti o yatọ patapata si awọn ẹrọ ti o lo awọn ila ti Makiuri tabi awọn itọka alayipo. Wọn da lori imọran pe resistance ti nkan irin kan (irọrun pẹlu eyiti ina nṣan nipasẹ rẹ) yipada bi iwọn otutu ṣe yipada. Bi awọn irin ṣe n gbona, awọn ọta ti n gbọn diẹ sii ninu wọn, o nira fun ina lati san, ati pe resistance n pọ si. Bakanna, bi awọn irin ṣe tutu, awọn elekitironi n gbe diẹ sii larọwọto ati pe resistance lọ silẹ.

Ni isalẹ ni iwọn otutu oni nọmba olokiki giga wa fun itọkasi rẹ:

23.03.14

Kan si wa fun igbesi aye ilera

Fun Awọn aṣẹ Osunwon ati Awọn olupin kaakiri, jọwọ kan si wa ni isalẹ.

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