Resistor Yadda Ya Da Yawan Lura: Kungiyar Tsari Don Fahimtar Abubuwa

Me kana a Light Dependent Resistor?

A Light Dependent Resistor (LDR) ita ce zabe da ake amfani da shi wadda yake da tsarin lafiya, inda ake taka da shi, yana gina cikakken lafiya, kuma inda ake rage shi, yana gina cikakken lafiya. Tsari na LDR ya kamata za ta haɗa daga filayen ohms zuwa miliyan ohms, saboda abin da ake amfani da shi da kuma hawa mai sauki.

Shaida na Light Dependent Resistor (LDR) an nuna a cikin wannan. Arowa ta nuna yadda lafiya take rasa shi.

Yadda ake Amfani da Light Dependent Resistor (LDR)

Yadda ake amfani da Light Dependent Resistor (LDR) ita ce koyar da ake amfani da shi wadda yake da tsarin lafiya, inda ake taka da shi, yana gina cikakken lafiya, kuma inda ake rage shi, yana gina cikakken lafiya. Tsari na LDR ya kamata za ta haɗa daga filayen ohms zuwa miliyan ohms, saboda abin da ake amfani da shi da kuma hawa mai sauki.

Idan lafiya ta fara a kan LDR, photons (lafiya) sun yi aiki a valence band (shaida na farko na atoms) da ke fitowa electrons su don su zo zuwa conduction band (shaida inda electrons su zama na iya zo). Wannan ya bazu masu lafiya da masu hauka (positive charges) da suke iya zama da electric current. Saboda haka, tsari na LDR ya rage.

Kamfanonin da tsari na LDR ya rage yana da shawarwari, kamar:

• Wadanda lafiya da intenciti na lafiya

• Band gap (karamin karamin lafiya da ke fitowa electrons su zuwa conduction band) na material na semiconductor

• Doping level (yawan impurities da ake amfani da su don inganta cikakken lafiya) na material na semiconductor

• Surface area da thickness na LDR

• Hawa mai sauki da humidity

Abubuwan Light Dependent Resistor (LDR)

Abubuwan Light Dependent Resistor (LDR) sun hada da:

• Nonlinearity: Yadda ake nuna tsari na LDR da intenciti na lafiya ba shi ba linear, amma exponential. Wannan yana nufin cewa takwasu ne na intenciti na lafiya zai iya bazu tsari na LDR, ko kuma tsari na LDR zai iya bazu intenciti na lafiya.

• Spectral response: Sensitivity na LDR yana da muhimmanci saboda wavelength na lafiya. Wasu LDRs ba su iya yanayi ba zuwa wasu wavelengths. Spectral response curve ta nuna yadda tsari na LDR ya rage da wasu wavelengths.

• Response time: Response time ita ce lokacin da LDR ya rage tsari da shi inda ake taka da shi lafiya ko kuma inda ake rage shi. Response time ta da shawarwari:rise time da decay time. Rise time ita ce lokacin da LDR ya rage tsari da shi inda ake taka da shi lafiya, kuma decay time ita ce lokacin da LDR ya rage tsari da shi inda ake rage shi lafiya. Tushen rise time yana da lokaci kadan, kuma waɗannan duka suke da lokacin milliseconds.

• Recovery rate: Recovery rate ita ce lokacin da LDR ya rage tsari da shi inda ake taka da shi lafiya ko kuma inda ake rage shi. Recovery rate yana da shawarwari kamar hawa, humidity, da aging effects.

• Sensitivity: Sensitivity na LDR ita ce ratio da tsari na LDR ya rage zuwa intenciti na lafiya. Ana nuna shi a percentages ko decibels (dB). Sensitivity mai karfi yana nufin cewa LDR zai iya yanayi wasu takwasu na intenciti na lafiya.

• Power rating: Power rating na LDR ita ce maximum power da LDR zai iya fada bayan ake rage shi. Ana nuna shi a watts (W) ko milliwatts (mW). Power rating mai karfi yana nufin cewa LDR zai iya yanayi wasu voltages da currents.

Me kana a Types of Light Dependent Resistors?

Light-dependent resistors suna da types biyu saboda materials da ake amfani da su don kowace wadanda:

• Intrinsic photoresistors: Waɗannan ana kowace su da pure semiconductor materials kamar silicon ko germanium. Suna da band gap mai karfi kuma suna buƙata high-energy photons don su yi electrons su zuwa. Suna da sensitivity mai karfi zuwa short wavelengths (kamar ultraviolet) da long wavelengths (kamar infrared).

• Extrinsic photoresistors: Waɗannan ana kowace su da semiconductor materials da suke amfani da impurities wadda suke yi new energy levels above the valence band. Energy levels da suke buƙata electrons su da suke iya zo zuwa conduction band da lower-energy photons. Extrinsic photoresistors suna da sensitivity mai karfi zuwa long wavelengths (kamar infrared) da short wavelengths (kamar ultraviolet).

Tabelo ta nuna materials da ake amfani da su don intrinsic da extrinsic photoresistors da spectral response ranges.

Yadda a Kowa Light Dependent Resistor Circuit

Light Dependent Resistor (LDR) circuit ita ce simple electronic circuit wadda ake amfani da LDR a kan variable resistor don kula tsari na lafiya a kan circuit. Basic principle na LDR circuit ita ce kowace LDR a kan series ko parallel da fixed resistor kuma ake amfani da voltage across them. Voltage drop across LDR yana da shawarwari da tsari na LDR, kuma tsari na LDR yana da shawarwari