I-EVDL-10A i-Quartz Oscillator Vacuum Gauge

1. Isishwankathelo semveliso

I-EVDL-10A imitha ye-quartz vacuum imitha yokucoca kunye ne-quartz crystal oscillator njengenzwa.Inoluhlu olubanzi kunye nokuchaneka okuphezulu.I-vacuum gauge iqukethe iyunithi yokulawula kunye nokulawula, kwaye ityhubhu yedijithali yeyunithi yokulawula ibonisa ixabiso loxinzelelo.

2.Iinkcukacha zobuGcisa

1. Uluhlu lokulinganisa: 5×10-1-105Pa

2. Ubonelelo lwaMandla:AC 220V,50Hz

3. AMANDLA:7W

Imilinganiselo yeChassis: 180mm×80mm×200mm (L*W*D)

5. Ubude bekhebula 2m

3.Umgaqo wokusebenza

I-EVDL-10A i-quartz vacuum meter iyimitha yokucoca eyenziwe ngokusebenzisa iimpawu ze-quartz crystal oscillator resonance impedance kunye noxinzelelo lwegesi.I-quartz crystal oscillator kwi-EVDL-10A i-quartz vacuum gauge ayiyona nje inxalenye ye-oscillator, kodwa kunye nenzwa yokulinganisa uxinzelelo lwegesi.I-quartz crystal oscillator ifakwe kwigobolondo ye-aluminium ukwenza umbhobho we-gauge kunye nobubanzi be-15.5mm, enokuthi ifakwe kwinkqubo ngokusebenzisa i-interface.Isekethe yokulinganisa ye-resonance impedance iboniswe kuMfanekiso 1:

Umzobo woku-1 wesekethe yokulinganisa i-Resonant impedance

I-Resonant impedance Z= V AB

V_ABngumbane onqumla kwikristale

Ndingumsinga oqukuqela kwikristale

Okwangoku ndihamba nge-resistor R kuthotho kunye nekristale, kwaye i-voltage ngaphesheya kwe-resistor yi-VBD

∴ Mna = V BD

Z=V AB R

V_ABiphantse ilingane nombane ongu-V₀ngaphaya kwe-AC, i-VBD iphantse ilingane nombane we-V₁kuyo yonke i-DC, kwaye i-impedance ingabalwa ukusuka kumlinganiselo we-V₀, V₁kunye nemilinganiselo yokumelana.I-microcomputer ye-single-chip iguqula i-impedance ibe yingcinezelo, kwaye ityhubhu yedijithali ibonisa ixabiso loxinzelelo.

4.Iimpawu ze-quartz vacuum gauge

Imitha ye-quartz vacuum ibonakaliswe ngumthamo omncinci wenzwa.Ubungakanani bokungcangcazela kwekristale ye-EVDL-10A quartz vacuum meter yi-3.2mm × 1.5mm × 0.8mm.Ngale ndlela, ngaphezu kokulinganisa uxinzelelo lwegesi njengezinye iimitha ze-vacuum, imitha ye-vacuum inokulinganisa uxinzelelo lwegesi lomthamo omncinci, njengesixhobo esitywiniweyo se-1cm3, kwaye ibone indawo yokubamba i-vacuum.

5.EVDL-10A Ufakelo lwe-Quartz vacuum gauge

Ufakelo lwe-EVDL-10A lwe-quartz vacuum gauge lubonisiwe kuMfanekiso 2:

I-quartz crystal oscillator kunye ne-oscillating circuit ifakwe kwi-probe.Intambo ekhokelayo ifakwe kwi-socket yepaneli yangasemva yeyunithi yokulawula ngeplagi ye-5-pin, kunye nombhobho onobubanzi be-probe Φ15.5 ifakwe kwi-vacuum system.Qhoboshela intambo yombane kwisokethi yephaneli yangasemva yeyunithi yolawulo kwaye uplage enye isiphelo kwindawo yombane.Umbane ophumayo kufuneka ube nocingo oluphantsi lokumisa i-chassis yeyunithi yokulawula.Vula iswitshi yamandla kunye neyunithi yolawulo ityhubhu yedijithali ibonisa ixabiso loxinzelelo.Umboniso wombhobho wedijithali 3.2 E 2 uthetha ukuba ixabiso loxinzelelo ngu-3.2 × 102Pa.

6.I-Quartz vacuum gauge calibration

Xa ubushushu be-ambient butshintsha, i-EVDL-10A kufuneka ilinganiswe ngolu hlobo lulandelayo:

1. Ukulungiswa kwenqaku le-Zero: Emva kokuba umatshini uzinzile kwisiqingatha seyure, xa uxinzelelo lungaphantsi kwe-10-3Pa, cinezela iqhosha kwi-zero hole yepaneli yangaphambili yeyunithi yokulawula kunye ne-screwdriver ukuyikhulula.Ukuba inkqubo ye-vacuum ayifiki kwi-10-3Pa, iqhosha le-zero alinakucinezelwa.

2. Ukulawulwa kwe-Atmospheric: Veza i-atmospheric kummiselo, cinezela iqhosha kumngxuma we-atmospheric wepaneli yangaphambili yeyunithi yokulawula kunye ne-screwdriver ukuze uyikhulule.