I-EVDL-10A Quartz Oscillator Vacuum Gauge

1. Uhlolojikelele lomkhiqizo

I-EVDL-10A quartz vacuum meter iyimitha yevacuum ene-quartz crystal oscillator njengenzwa.Inobubanzi obubanzi nokunemba okuphezulu.I-vacuum gauge iqukethe iyunithi yokulawula nokulawula, futhi ishubhu yedijithali yeyunithi yokulawula ibonisa inani lokucindezela.

2.Imininingwane yobuchwepheshe

1. Ibanga lokulinganisa:5×10-1-105Pa

2. Ukunikezwa kwamandla:AC 220V,50Hz

3. AMANDLA:7W

Ubukhulu be-Chassis: 180mm×80mm×200mm (L*W*D)

5. Ubude bekhebula 2m

3.Isimiso sokusebenza

I-EVDL-10A quartz vacuum meter iyimitha yokuhlanza eyenziwe kusetshenziswa izici ze-quartz crystal oscillator resonance impedance kanye nomfutho wegesi.I-quartz crystal oscillator ku-EVDL-10A quartz vacuum gauge ayiyona nje ingxenye ye-oscillator, kodwa futhi iyinzwa yokulinganisa umfutho wegesi.I-quartz crystal oscillator ifakwe kugobolondo le-aluminium ukwenza ipayipi legeji enobubanzi obungu-15.5mm, elingafakwa ohlelweni ngokusebenzisa isixhumi esibonakalayo.Umjikelezo wokulinganisa we-resonance impedance uboniswa kuMfanekiso 1:

Umfanekiso 1 Isekhethi yokulinganisa i-resonant impedance

I-Resonant impedance Z= V AB

V_ABi-voltage ngaphesheya kwekristalu

Mina ngingumsinga ogeleza phakathi kwekristalu

I-current I igeleza nge-resistor R ngochungechunge olunekristalu, futhi i-voltage yonkana kokumelana yi-VBD

∴ I = V BD

Z=V AB R

V_ABicishe ilingane ne-voltage V₀ngaphesheya kwe-AC, i-VBD icishe ilingane ne-voltage V₁yonkana i-DC, futhi i-impedance ingabalwa kusukela ku-V elinganisiwe₀, V₁kanye namanani okumelana.I-single-chip microcomputer iguqula i-impedance ibe ingcindezi, futhi ishubhu ledijithali libonisa inani lokucindezela.

4.Izici ze-quartz vacuum gauge

Imitha ye-quartz vacuum ibonakala ngevolumu encane yenzwa.Usayizi wokudlidliza wekristalu we-EVDL-10A quartz vacuum meter ngu-3.2mm × 1.5mm × 0.8mm.Ngale ndlela, ngaphezu kokulinganisa ingcindezi yegesi njengamanye amamitha e-vacuum, imitha yomshini we-vacuum ingakwazi ukukala ingcindezi yegesi yevolumu encane, njengedivayisi evalwe ngosayizi ongu-1cm3, futhi ibone isimo sokubamba i-vacuum.

5.EVDL-10A Ukufakwa kwegeji ye-Quartz vacuum

Ukufakwa kwe-EVDL-10A quartz vacuum gauge kuboniswe kuMfanekiso 2:

I-quartz crystal oscillator kanye ne-oscillating circuit ifakwe ku-probe.Ikhebula eliholayo lifakwa esokhethini lephaneli elingemuva leyunithi yokulawula ngepulaki enamaphini angu-5, bese ipayipi elinobubanzi be-probe Φ15.5 lifakwa ohlelweni lwevacuum.Xhuma ikhebula lamandla esokhethi lephaneli elingemuva leyunithi yokulawula bese uxhuma enye ingxenye endaweni yamandla.Indawo kagesi kufanele ibe nentambo ephansi ukuze igaye i-chassis yeyunithi yokulawula.Vula iswishi yamandla bese iyunithi yokulawula ishubhu yedijithali ibonisa inani lokucindezela.Ukuboniswa kweshubhu yedijithali 3.2 E 2 kusho inani lokucindezela ngu-3.2×102Pa.

6.I-Quartz vacuum gauge ukulinganisa

Uma izinga lokushisa le-ambient lishintsha, i-EVDL-10A kufanele ilinganiswe kanje:

1. Ukulungiswa kwephoyinti elinguziro: Ngemva kokuthi umshini uzinzile isigamu sehora, lapho ingcindezi ingaphansi kuka-10-3Pa, cindezela inkinobho embobeni enguziro yephaneli yangaphambili yeyunithi yokulawula nge-screwdriver ukuze uyikhulule.Uma uhlelo lwe-vacuum lungafinyeleli ku-10-3Pa, inkinobho ye-zero ayikwazi ukucindezelwa.

2. Ukulawulwa komkhathi: Veza umkhathi kumthethonqubo, cindezela inkinobho embobeni yomoya wephaneli yangaphambili yeyunithi yokulawula nge-screwdriver ukuze uyikhulule.