Inficon PLO-10i Phase Lock Oscillator Bedienungsanleitung

OPERATION AND SERVICE MANUALPLO-10 SeriesPhase Lock OscillatorIPN 605800 Rev. G

PLO-10 PHASE LOCK OSCILLATOR GENERAL DESCRIPTION 1-11 GENERAL DESCRIPTION The INFICON Phase Lock Oscillator was developed specifically to support th

PLO-10 PHASE LOCK OSCILLATOR GENERAL DESCRIPTION 1-2 crystal, the in-phase component (at zero phase error, there is no out of phase component) of th

PLO-10 PHASE LOCK OSCILLATOR GENERAL DESCRIPTION 1-31.1.6 CRYSTAL FACE ISOLATION (PLO-10i Models only) The PLO-10i Models provide transformer isola

PLO-10 PHASE LOCK OSCILLATOR GENERAL DESCRIPTION 1-4 Figure 1 Equivalent Phase Error Due to Imperfect Capacitance Cancellation Polar Plot of Cryst

PLO-10 PHASE LOCK OSCILLATOR GENERAL DESCRIPTION 1-5 1.2.4 CONDUCTANCE ERRORS Conductance measurements are meaningful over the range of 0.0001 to 0.

PLO-10 PHASE LOCK OSCILLATOR GENERAL DESCRIPTION 1-6 1.3 SPECIFICATIONS Frequency range: 3.8 to 6.06 MHz, or 5.1 to 10 MHz Capacitance compensati

PLO-10 PHASE LOCK OSCILLATOR GENERAL DESCRIPTION 1-7 1.4 ACCESSORIES Part Number Description 172205 CHT-100 Crystal Holder, Teflon®, SMB Connector

PLO-10 PHASE LOCK OSCILLATOR UNDERSTANDING AND SETTING UP THE INFICON PLO-10 2-12 UNDERSTANDING AND SETTING UP THE INFICON PLO-10 There are several

PLO-10 PHASE LOCK OSCILLATOR UNDERSTANDING AND SETTING UP THE INFICON PLO-10 2-2 Connect a frequency counter to the Frequency Output. Connect a volt

PLO-10 PHASE LOCK OSCILLATOR UNDERSTANDING AND SETTING UP THE INFICON PLO-10 2-3 Figure 2 System Connections

PLO-10 PHASE LOCK OSCILLATOR UNDERSTANDING AND SETTING UP THE INFICON PLO-10 2-4 Figure 3 Front Connections

PLO-10 PHASE LOCK OSCILLATOR UNDERSTANDING AND SETTING UP THE INFICON PLO-10 2-5 Figure 4 Rear Connections

PLO-10 PHASE LOCK OSCILLATOR CALCULATING CRYSTAL RESISTANCE 3-13 CALCULATING CRYSTAL RESISTANCE The PLO-10 provides a dc output voltage proportion

PLO-10 PHASE LOCK OSCILLATOR ADJUSTING THE CAPACITANCE CANCELLATION 4-14 ADJUSTING THE CAPACITANCE CANCELLATION Proper adjustment of the Capacitanc

PLO-10 PHASE LOCK OSCILLATOR CALCULATING CRYSTAL POWER 4-2 If you are using a crystal holder and cable supplied with your PLO-10 then you should no

PLO-10 PHASE LOCK OSCILLATOR ADJUSTING THE CAPACITANCE CANCELLATION 4-3this is not the point you want. Back off the course adjustment until the fla

OPERATION AND SERVICE MANUALPLO-10 SeriesPhase Lock OscillatorIPN 605800 Rev. Gwww.inficon.com [email protected] to our continuing program of

PLO-10 PHASE LOCK OSCILLATOR FREQUENCY ERRORS DUE TO IMPERFECT CAPACITANCE CANCELLATION 5-15 FREQUENCY ERRORS DUE TO IMPERFECT CAPACITANCE CANCELLA

PLO-10 PHASE LOCK OSCILLATOR FREQUENCY ERRORS DUE TO IMPERFECT CAPACITANCE CANCELLATION 5-2 Effective Phase error = arctangent ((31.4e-6)/(100e-3))

PLO-10 PHASE LOCK OSCILLATOR CALCULATING CRYSTAL POWER 6-16 CALCULATING CRYSTAL POWER Using the PLO conductance voltage output, crystal power can b

PLO-10 PHASE LOCK OSCILLATOR CALCULATING CRYSTAL POWER 6-2Figure 9 PLO-10 Assembly

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-17 CRYSTALS, HOLDERS AND FLOW CELL An essential part of the PLO-10 Oscillator is th

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-2Figure 10 INFICON 1" Crystal – Electrode Configuration The figure below shows a

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-37.1.3 CRYSTAL SURFACE FINISH Studies have shown that electrode surface roughness c

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-4 (0.081 Hz/ng/cm2 for a 6 MHz crystal @ 20° C) (0.181 Hz/ng/cm2 for a 9 MHz crystal

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-5small mass changes over long periods of time. 7.1.8 CRYSTAL LIFE EXPECTANCY It is

TrademarksThe trademarks of the products mentioned in this manual are held by the companies that produce them.INFICON® is a trademark of INFICON Inc.A

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-6 frequency of a sensor crystal on temperature is generally small in experiments in

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-7 Figure 12 Frequency vs. Temperature of INFICON 1" AT-Cut Crystal for 90 C Fre

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-8 dry the crystal. It is better to chase liquid off the crystal than to let it evap

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-97.2.1.5 Polystyrene removal To clean polystyrene (PS) off a crystal, immerse the cr

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-10 Figure 14 CHC-100 Crystal Holder 7.3.1 HOW TO INSTALL A CRYSTAL IN A INFICON C

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-11 Figure 15 Crystal Installation 3. Place the Retainer Ring over the Crystal, wit

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-12 7.3.2 HOLDER CARE AND HANDLING With a robust design, INFICON crystal holders re

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-13♦ Always act fast in the event that liquids or chemicals have entered the crystal

PLO-10 PHASE LOCK OSCILLATOR CRYSTALS, HOLDERS AND FLOW CELL 7-14 outlet tubes with a .047” I.D. x .062” O.D., compatible with 0.062” I.D. tubing.

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-18 THEORY OF OPERATION Sauerbrey was the first to recognize the ability of the Quartz Crystal M

INFICON warrants the product to be free of functional defects in material and workmanship and that it will perform in accordance with its published sp

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-2 fq = Resonant frequency of unloaded crystal in Hz. f = Resonant frequency of loaded crystal

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-3mass. Notice that the units of the frequency constant for quartz is length/time or velocity.

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-4 8.4 LIQUID MEASUREMENTS QCMs have been used as gas-phase mass detectors with lossless films fo

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-5Where: R∆ = change in series resonance resistance in , rA = active area of INFICON 1-inch cr

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-6 Frequency Change vs. Wt % Glycerol-10000-9000-8000-7000-6000-5000-4000-3000-2000-100000 102030

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-7Resistance Change vs. Wt % Glycerol0100020003000400050000 20406080100Wt % GlycerolDelta Resista

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-8 Lη = Viscosity of the liquid in contact with the electrode in kg/m/sec Sω = Angular frequency

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-9 Figure 18 Crystal Equivalent Circuit Because a crystal’s impedance is minimum at resonance it

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-10 Figure 19 Polar Plot of Crystal Admittance Figure 20 shows the conductance in terms of magn

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-11 Figure 20 Admittance vs. Frequency, Magnitude and Phase of High Q Crystal Figure 21 Admittan

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-12 When the above complex conductance is plotted in polar coordinates, one obtains a circle as s

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-13 Figure 23 Polar Admittance Plot of Low Q Crystal Figure 24 Admittance vs. Frequency, Real a

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-14 offset. The PLO-10 provides a mechanism for canceling out the imaginary current effectively

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-15 Figure 26 Non-zero Phase Lock Figure 26 shows the result of a non-zero phase lock. Note t

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-16 the crystal’s conductance. This current is monitored by the PLO-10 and displayed as crystal r

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-178.7.2 FREQUENCY ERROR DUE TO PHASE ERROR Given some finite zero phase error, the resulting fr

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-18 Or, Frequency Error = -(1/(2*57.3))(Phase Error, in degrees)(Bandwidth) For the above ten-oh

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-19Frequency Error vs. Crystal Resistance0.0010.0100.1001.00010.000100.0001000.00010000.000100000

PLO-10 PHASE LOCK OSCILLATOR THEORY OF OPERATION 8-20 Figure 28 Crystal Power Dissipation vs. Crystal ResistanceCrystal Power vs. Crystal Resistan

PLO-10 PHASE LOCK OSCILLATOR GLOSSARY 9-1 9 GLOSSARY Å Symbol for angstrom, a unit of length equal to 10-10 meter. Conductance The ability to c

iv Table of Contents OPERATION AND SERVICE MANUAL...I

PLO-10 PHASE LOCK OSCILLATOR GLOSSARY 9-2 O.D. Abbreviation for Outside Diameter. Usually use in specifying a tube size in the form inch I.D. x i

PLO-10 PHASE LOCK OSCILLATOR GLOSSARY 9-3VCO Voltage Controlled Oscillator. An oscillator circuit designed so that the output frequency can be co

PLO-10 PHASE LOCK OSCILLATOR REFERENCES 10-110 REFERENCES 1 Martin, Stephen, et. al.,

PLO-10 PHASE LOCK OSCILLATOR REFERENCES 10-2

v7.2.2.3 PHYSICAL VACUUM DEPOSITION (PVD) ..... 7-9 7.3 CRYSTAL HOLDERS...

vi Table of Figures FIGURE 1 EQUIVALENT PHASE ERROR DUE TO IMPERFECT CAPACITANCE CANCELLATION....... 1-4 FIGURE 2 SYSTEM CONNECTI