Kedu ihe PWM na nhazi laser?

N'ime usoro nhazi nhazi laser, anyị na-ahụkarị oke "PWM", yabụ kedu ihe ọ pụtara, ka anyị lelee ya taa.

PWM bụ mbiri nke “Pulse Width Modulation”, nke a na-akpọ “modulation obosara usu” ma ọ bụ “modulation”, bụ usoro dị irè nke ukwuu maka iji mmepụta dijitalụ nke microprocessor iji chịkwaa sekit analog.

Ụdị mmepụta nke laser na-agụnye ụdị abụọ: ọnọdụ na-aga n'ihu na ọnọdụ pulse.Ọnọdụ na-aga n'ihu bụ ịgba ọkụ na-aga n'ihu nke lasers;Ụdị pulse bụ ịgbanye laser n'otu oge oge ọ bụla ọzọ.Ihe atụ dị mfe, dị ka ọkụ ọkụ na-ebunye ọkụ: ịgbanyụ ọkụ anaghị agbanyụ bụ ọnọdụ na-aga n'ihu;Ịgbanye ọkụ ọkụ ozugbo wee gbanyụọ ya bụ ịmịpụta pulse, na usoro nke ịgbanwuo ugboro ugboro bụ ọnọdụ pulse.N'otu aka ahụ, mgbe a na-eji laser dochie flashlight, ọnọdụ pulse bụ ịmegharị usoro ịgbanwuo na gbanyụọ ọkụ ahụ mgbe niile.

Ụzọ kachasị mma isi mepụta laser pulsed bụ ịgbakwunye modulator na laser CW iji gbanwee laser CW iji nweta mmepụta ihe ọkụkụ.PWM (Pulse Width Modulation) bụ ịhazigharị obosara usu site na ịhazigharị okirikiri ọrụ.

Mgbe ị na-edozi usoro usoro nke ịkpụ laser, a na-ejikarị pulses na usoro ọrụ ọrụ eme ihe, na ọtụtụ ndị na-arụ ọrụ na-amaghị usoro ịkpụ laser nwere ike ọ gaghị aghọta ọrụ nke abụọ ndị a, wee nye gị nkọwa zuru ezu.

1Oge oge

Mgbama na-esi n'elu gaa na ala ma laghachi azụ ruo elu maka otu izu

2Ọnụọgụ ugboro ugboro

Kedu okirikiri nke PWM dị na 1 sekọnd

3okirikiri ọrụ Pulse

Ihe atụ nke oke nke oge dị elu na oge okirikiri dum na okirikiri

4Pulse oge na oge

Ogologo oge a na-ewe maka okirikiri

5Obosara usu

Oge oge ejiri mee ihe maka oge dị elu

6Ọnụego ike kacha elu

Mmetụta ike ozugbo nke laser n'ime otu obosara usu

7Nkezi ọnụego ọrụ

Ole ike nke laser na-ewepụta na okirikiri ugboro ugboro

Na-emekarị, mgbe anyị modulate laser na laser usoro debugging, a na-edozi ike kacha elu, ugboro usu na ọrụ okirikiri.Ọzọ, ka anyị jiri ihe atụ gosi otu esi agbakọọ paramita nke PWM.

N'ebe kachasị elu nke laser, usoro ọrụ nke pulse na-abawanye, na ike na irradiation pulse ọ bụla ga-abawanye otú ahụ, nke ga-eme ka ikike nhazi dị na ntụziaka nke ọkpụrụkpụ nke efere ahụ.Ọ bụrụ na usoro ọrụ nke pulse na-ebelata, a na-amụnye ike na pulse ọ bụla, nke na-enyere aka belata oke ọkụ na fusing ọnwụ.

N'ime usoro nhazi ígwè, a na-eji ike nke laser eme ihe, na n'ihe banyere ike laser mgbe nile, ọnụ ọgụgụ dị elu dị elu, obere mmepụta ike nke laser ọ bụla, n'ihi ya, anyị kwesịrị ikpebi oge kwesịrị ekwesị dị ka ọsọ nhazi si dị. mgbe ike nke laser zuru ezu iji gbazee ígwè.

GW laser dabere na teknụzụ mgbapụta 976nm nke ngwaahịa laser fiber na-aga n'ihu, yana nrụpụta elektrọn ngwa anya dị elu, ogo mmapụta ọkụ dị mma, ugboro modulation kachasị ruo 50kHz, nke a na-ejikarị na ịkpụ, ịgbado ọkụ, nhicha, mkpuchi na imepụta ihe.