EVDL-10A Quartz Oscillator Vacuum Gauge

1.Kev saib xyuas cov khoom

EVDL-10A quartz nqus tsev vacuum meter yog lub tshuab nqus tsev ntsuas nrog quartz siv lead ua oscillator li sensor.Nws muaj ntau yam thiab siab precision.Lub tshuab nqus tsev vacuum muaj ib qho kev tswj hwm thiab kev tswj hwm, thiab lub raj digital ntawm lub tshuab tswj tau qhia txog tus nqi siab.

2.Technical specifications

1. Kev ntsuas ntau: 5 × 10-1-105Pa

2. Fais fab mov: AC 220V, 50Hz

3 zog:7w

4.Chassis qhov ntev: 180mm × 80mm × 200mm (L * W * D)

5. Cable ntev 2m

3. Lub hauv paus ntsiab lus ua haujlwm

EVDL-10A quartz nqus tsev vacuum meter yog lub tshuab nqus tsev vacuum meter ua los ntawm kev siv cov yam ntxwv ntawm quartz siv lead ua oscillator resonance impedance thiab roj siab.Quartz siv lead ua oscillator nyob rau hauv EVDL-10A quartz lub tshuab nqus tsev ntsuas tsis yog tsuas yog ib feem ntawm oscillator, tab sis kuj yog ib tug sensor rau ntsuas roj siab.Quartz siv lead ua oscillator yog ntsia rau hauv txhuas plhaub los ua gauge yeeb nkab nrog txoj kab uas hla ntawm 15.5mm, uas yuav muab tso rau hauv lub system los ntawm lub interface.Kev ntsuas Circuit Court ntawm resonance impedance yog qhia hauv daim duab 1:

Daim duab 1 Resonant impedance ntsuas Circuit Court

Resonant impedance Z = V AB

V_AByog qhov voltage hla lub crystal

Kuv yog qhov tam sim no ntws los ntawm cov siv lead ua

Tam sim no kuv ntws los ntawm resistor R nyob rau hauv series nrog cov siv lead ua, thiab qhov voltage hla tus resistor yog VBD

∴ I = V BD

Z = V AB R

V_AByog kwv yees li qhov voltage V₀hla AC, VBD yog kwv yees li sib npaug ntawm qhov voltage V₁hla DC, thiab qhov impedance tuaj yeem xam los ntawm ntsuas V₀, V₁thiab cov nqi tiv thaiv.Ib-chip microcomputer hloov cov impedance mus rau hauv lub siab, thiab cov raj digital qhia cov nqi siab.

4.Cov yam ntxwv ntawm lub tshuab nqus tsev quartz

Lub tshuab nqus tsev quartz yog tus cwj pwm los ntawm qhov ntsuas me me.Cov siv lead ua vibration loj ntawm EVDL-10A quartz nqus meter yog 3.2mm × 1.5mm × 0.8mm.Nyob rau hauv txoj kev no, ntxiv rau ntsuas cov roj siab zoo ib yam li lwm lub tshuab nqus tsev, lub tshuab nqus tsev tuaj yeem ntsuas cov roj siab ntawm lub ntim me me, xws li 1cm3 qhov loj ntim ntim, thiab kuaj xyuas lub tshuab nqus tsev.

5.EVDL-10A Quartz nqus gauge installation

Kev teeb tsa ntawm EVDL-10A quartz nqus ntsuas tau pom hauv daim duab 2:

Lub quartz siv lead ua oscillator thiab oscillating circuit yog muab tso rau hauv qhov kev sojntsuam.Cov kab hlau lead yog muab tso rau hauv lub qhov (socket) ntawm lub vaj huam sib luag tom qab ntawm chav tswj hwm los ntawm 5-pin plug, thiab cov yeeb nkab nrog txoj kab uas hla ntawm qhov kev sojntsuam Φ15.5 yog muab tso rau hauv lub tshuab nqus tsev.Txuas lub hwj chim cable rau hauv lub vaj huam sib luag tom qab lub qhov (socket) ntawm lub chaw tswj hwm thiab ntsaws rau lwm qhov kawg rau hauv lub qhov hluav taws xob.Lub qhov hluav taws xob hluav taws xob yuav tsum muaj cov xaim hauv av txhawm rau txhawm rau tswj lub chassis.Tig rau ntawm lub hwj chim hloov thiab chav tswj cov raj digital qhia txog tus nqi siab.Cov tube tso saib 3.2 E 2 txhais tau tias tus nqi siab yog 3.2 × 102Pa.

6.Quartz nqus gauge calibration

Thaum lub ambient kub hloov, EVDL-10A yuav tsum tau calibrated raws li nram no:

1. Kev hloov kho xoom xoom: Tom qab lub tshuab ruaj khov rau ib nrab ib teev, thaum lub siab tsawg dua 10-3Pa, nias lub pob nyob rau hauv xoom qhov ntawm lub vaj huam sib luag pem hauv ntej ntawm chav tswj nrog lub hau ntswj kom tso tawm.Yog tias lub tshuab nqus tsev tsis ncav cuag 10-3Pa, lub xoom khawm tsis tuaj yeem nias.

2. Atmospheric regulation: Tshem tawm cov huab cua mus rau cov kev cai, nias lub pob hauv atmospheric qhov ntawm lub vaj huam sib luag pem hauv ntej ntawm chav tswj nrog lub hau ntswj kom tso tawm.