Thermistor: Taifi, Amfani da Hakan Yakin Suƙi Suna Zama

Mai suna wani Thermistor

A thermistor (ko kuma thermal resistor) yana nufin wata na resistor da haske na resistance ke yi lalle da yanayi da gida. Duk da cewa hasken resistance na duka resistors zai ciyarwa da lafiya ne da yanayi, thermistor yana da shiga mai zurfi don yanayi.

Thermistors suka yi aiki a passive component a tsaki. Su ne tsohon, kadan, da kuma hankali don ya samun yanayi.

Idan ba thermistors ba su fi sani a yanayi mai girma ko mai karfi, su ne sensor da ake zabi don abubuwa masu muhimmanci.

Thermistors su ne daidai idan an bukata samun yanayi da kyau. Circuit symbol na thermistor yana bayyana a nan:

Aiki na Thermistors

Thermistors suka amfani a matsayin arewacin samun yanayi a wannan mutum da kuma air. Abubuwan da ake amfani da thermistors su ne:

• Digital thermometers (thermostats)

• Automotive applications (don ya samun oil da coolant temperatures a cars & trucks)

• Household appliances (kamar microwaves, fridges, da ovens)

• Circuit protection (i.e. surge protection)

• Rechargeable batteries (ensure the correct battery temperature is maintained)

• Don ya samun thermal conductivity na electrical materials

• Useful in many basic electronic circuits (e.g. as part of a beginner Arduino starter kit)

• Temperature compensation (i.e. maintain resistance to compensate for effects caused by changes in temperature in another part of the circuit)

• Used in wheatstone bridge circuits

Yadda A Yi Aiki Thermistor

Prinsipin aikin thermistor shine cewa hasken resistance ta yana kan yanayi. Ana iya samun hasken resistance na thermistor tare da ohmmeter.

Idan muna sanin halayen da yanayi ke yi wa hasken resistance na thermistor – don haka tare da samun hasken resistance na thermistor muna iya fara samun yanayi.

Yawan da hasken resistance ta ciyarwa yana kan material da ake amfani a thermistor. Alamar hasken resistance na thermistor da yanayi bai da ita. Graph na thermistor tana bayyana a nan:

Idan muna da thermistor tana da graph na yanayi, muna iya fara kara resistance da ake samu daga ohmmeter zuwa yanayi da ake bayyana a graph.

Tare da kara lami daga resistance zuwa yanayi a y-axis, da karkashin lami daga inda lami ya haɗa da graph, muna iya fara samun yanayi na thermistor.

Abunubuwa na Thermistors

Akawar abubuwan na thermistors:

• Negative Temperature Coefficient (NTC) Thermistor

• Positive Temperature Coefficient (PTC) Thermistor

NTC Thermistor

A NTC thermistor, idan yanayi ya ci, hasken resistance ya ci. Idan yanayi ya rage, hasken resistance ya rage. Saboda haka a NTC thermistor yanayi da hasken resistance suna da alama mai zurfi. Wadannan su ne abubuwan da suka fi yawa a themistor .

Alamun hasken resistance da yanayi a NTC thermistor yana da ita a cikin abun bayanin:

Inda:

• RT shine hasken resistance a yanayi T (K)

• R

  Sada