magnetic deflection review theory 3 the experiment 4 ...igor/class/labs/magneticdeflection.pdf · a...

1Copyright ©2000-2004 J. A. Panitz ▼

VISUAL E&M

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A FOCUSSED CONCEPT eLAB

Magnetic Deflection

Introduction ................................................. 2Review Theory ............................................ 3The Experiment ........................................... 4

Getting Started ........................................ 4Prepare for Data Collection ..................... 5Prepare for Data Collection ..................... 6Measure a Deflection Current .................. 6Find the Magnetic Field Strength............. 7Compare e/m with the Accepted Value .... 7

Team Discussion ......................................... 8Finish Up ..................................................... 9Materials and Supplies .............................. 10

2Copyright ©2000-2004 J. A. Panitz HOME ▼

▼

Introduction

Figure 1 shows an electron beam tubecentered between a pair of Helmholtz coils.A beam of electrons is generated in the tubeby an “electron gun”. The beam emergesfrom a hole in the center of a circular anode.When a current is passed through the coils,a magnetic field is generated. The magneticfield causes the electron beam to bend intoa circular trajectory and strike the anode.

The goal, today, is to investigate thedeflection of an electron beam in a magneticfield and to use the deflection to find thecharge-to-mass ratio (e/m) of the electron.

Figure 1. Electron beam tube.

ANODE

ELECTRONGUN

PIN JACKS

ELECTRON BEAM TUBE

PWR JACK

LED


▼

Review Theory

Suppose an electron enters a region ofspace at a right angle to a uniform magneticfield. The electron will move with constantspeed in a circular path of radius (R). FromNewton’s second law:

where (v) is the velocity of the electron, (B)is the magnetic field strength, (e) is theelectronic charge, and (m) is the mass ofthe electron.

e Bm

R

2

vv=

12

m eV2v =

em

2 VB R

2= ( )

The velocity of the electron can be foundfrom its kinetic energy. If the electronaccelerates through a potential difference (V)before it enters the field, its kinetic energywill be given by:

Combining these equations gives anexpression for the ratio of the charge-to-mass ratio of the electron.


▼

The ExperimentGetting Started

An electron beam is emitted from an“electron gun” located below the anodesurface as shown in Figure 2. The electronsin the beam acquire a kinetic energy byaccelerating through a potential differenceV. If a current is passed through theHelmholtz coils, the resulting magnetic fieldwill bend the beam into a circular path.

By adjusting the current, the beam will bendinto one of four circular grooves cut into theanode surface. Each groove is filled with aphosphor that will fluoresce under electron

bombardment. The radius of the electronbeam trajectory (R) is related to the grooveradius (r) by the equation:

where d = .002 m. A small amount of argonin the tube makes the electron beam visible.

1. Discuss the theory and the experiment.Plan a way to share the workload.Managers: select a discussion question.

2. Decide on a format to record data andobservations in your lab notebook.Include the SI units for all parameters.

Rr2

1dr

2

= + ÊËˆ¯

d

FLUORESCENTMATERIALIN GROOVE

ELECTRONGUN

ANODE

ELECTRONBEAMRADIUS = RENERGY = eV

r GROOVERADIUS

Figure 2. Schematic diagram of electron beam tube.


▼

Prepare for Data Collection

1. Select the Helmholtz coil assembly youused before. Connect the plug at theend of the AC adapter cord to the powerjack on its base. See Figure 1. Plug theadapter into a wall receptacle.

2. Darken the room. An electron beam willemerge from the anode (see Figure 3A).Wait 15 m for the beam to stabilize.

A B

Figure 3. Electron beam tube.(A) without B-field. (B) with B-field applied.

3. Use a multimeter to measure theaccelerating voltage (V) that appearsacross the pin jacks on the base of thee/m apparatus. See Figure 1.

4. Connect the components as shown inFigure 4. The Helmholtz coils are wiredin series inside the base of theapparatus. When the power supply isturned on current will flow in the samedirection in each coil. The banana jacksmarked “FIELD” are mounted on thebase of the apparatus.

POWERSUPPLY

COIL 1

MULTIMETER

+

COIL 2

I

II

FIELD

Figure 4. Schematic diagram of the e/m apparatus.


▼

Prepare for Data Collection

The current required to deflect the electronbeam to the two outer grooves will berecorded. The magnetic field strength will befound from Helmholtz theory. e/m will becalculated and compared to the acceptedvalue of 1.758796 ± 0.000019 x 1011 C/kg.

5. Turn on the power supply and adjust itsoutput current until the electron beambegins to deflect.

6. The power supply may create anexternal magnetic field. Position thepower supply so that it does notinfluence the beam’s position.

7. Use a compass to align the magneticaxis of the Helmholtz coils with theearth’s magnetic field.

Perform the alignment carefully.The earth’s field must add to thefield of the Helmholtz coils.

Measure a Deflection Current

1. Adjust the power supply current tocenter the electron beam on theoutermost groove where r = 0.020 m.

2. Use a multimeter to record themagnitude and the sign of the current.

The phosphor in a groove willdegrade in the beam. Minimize thetime the beam spends in a groove.

3. Repeat steps 1 and 2 eleven times toimprove the accuracy of reading theHelmholtz coil current.

4. Record the mean value of thecurrent for the twelve readings.

5. Repeat steps 1 - 4 for the next groovewhere r = 0.015 m.

6. Reverse the direction of the current andrepeat the procedure for both grooves.


▼

Find the Magnetic Field Strength

Find the value of the magnetic field strength(B). The magnetic field strength is the sumof the magnetic field strength found fromHelmholtz theory and the horizontalcomponent of the earth’s magnetic field (Be).Recall the number of turns in the coils(N = 119) and their radii (Rc = 0.102 m). InAlbuquerque, NM Be= 2.36 x 10

-5 Tesla.

1. Calculate the electron beamradius for each groove.

2. Calculate the magnetic fieldstrength (B) at each groove.

Caution. Reverse the sign of Be ifthe beam direction was reversed.

Compare e/m with the Accepted Value

1. Calculate a value for e/m ateach groove radius.

2. Compare the calculated and theaccepted value of e/m at eachgroove radius.

The accepted value of e/m is accuratelyknown (1.758796 ± 0.000019 x 1011 C/kg).


▼

Team Discussion

1. Summarize the experiment and theconclusions that were reached. Go tothe blackboard, sketch the essentialfeatures of the apparatus and comparethe results from all the teams.

2. Discuss the factors that affect theuncertainty in the experimental value ofthe magnetic field strength. Justify thestatement “The magnetic field strengthis the sum of the magnetic field strengthfound from Helmholtz theory and thehorizontal component of the earth’smagnetic field (Be)”..

3. Examine the equation for the radius ofthe electron beam (R) when theelectrons originate a distance (d) belowthe anode. Discuss the limit when d = 0and when r >>d. Derive the equation.

4. Describe a method to determine thedirection of current flow in the Helmholtzcoils from the deflection of the electronbeam. Prepare a diagram to clarify youranalysis.

5. A research investigator would like todetermine the charge-to-mass ratio ofthe electron on an orbiting satellite.Develop a procedure that could be usedto make this measurement with anelectron beam tube. Discuss thedifficulties that could be encountered.

6. Discuss how to use the principle of thee/m beam tube to measure thecomposition of an ion beam. Assumethe beam contains the ion species: H+,H2O

+, CO+, and N+. Discuss a practicaluse for such a device.

9Copyright ©2000-2004 J. A. Panitz HOME

▼

Finish Up

1. Enter a brief summary of the experimentand the team discussion in your labnotebook.

2. Quit the software menu.

3. Manager: Ensure that all componentsand hardware used by your team arereturned to their original state andplaced in their original location.

10Copyright ©2000-2004 J. A. Panitz HOME

ELECTRONBEAM TUBE

Figure 5. Specific charge of electron apparatus.

BASE

Warning: The electron beam tubeis fragile. If it must be handled,support the tube only by its blackplastic base. The tube and baseshould be numbered. Select a tubeand base with the same number.

Materials and Supplies

Specific charge of electron apparatus.(Figure 5).1 each CENCO CP71267-00.1 each Power supply. Internal.

UNM0003T01.1 each AC Adapter (6 VDC @ 1.2 A).

MagneTek WDU6-1200.

3 each Patch Cord. 24” Banana (Black).Pomona 1440-24-0.

1 each Desk fixture with 25 Wincandescent lamp bulb.

1 each Compass.CENCO WLS-22400-19.

1 each Power Supply (30 V @ 6 A).Good Will Instrument Co., Ltd.Model GPR-3060.

1 each Multimeter (Zmin =10 MW).3 1/2 Digit. Wavetek 15XL.

r

d

GROOVE RADIUS

ANODE

D

ELECTRONTRAJECTORY

D2 = r 2 + d2

R =D

2=

1

2r

2 + d2

R =r

21+

d

r

ÊËˆ¯

2

Copyright ©2000-2003 J. A. Panitz RETURN

Resistance (0 - 2000 MW)

1. Connect one test lead to the commoninput (COM) and another test lead tothe Volt or Ohm input (V W).

2. Set the function/range switch to (W), andto the highest resistance range: 2000M(2000 million ohms full scale).

3. Place the ends of the test leads acrossthe component.

4. Read the resistance. Select a lowerrange (if feasible) to give a higherresolution. The display in the figure atthe left indicates a resistance greaterthan the full scale value.

5. Measure the resistance of the test leadsby touching (shorting) the ends of theleads together. Deduct the test leadresistance from the resistance of thecomponent that was measured.

6. Set the function/range switch OFF.

V W COM 200 mA 10 A

OFFOFFV V~

W A

A~

Wavetek 15XL Digital Multimeter(M = 106, k = 103, m = 10-3, m = 10-6 )

Set the function/range switch to the OFFposition when the multimeter is not in use.CAUTION: Be sure that no current will flowin the component(s) to be measured.

1.


DC Voltage (0 - 1000 V)

1. Connect one test lead to the commoninput (COM) and another test lead tothe Volt or Ohm input (V W). Read thenote at the meter input.

2. Set the function/range switch to (V ),and to the highest DC voltage range:1000 V (1000 volts full scale).

3. Place the ends of the test leads acrossthe circuit element.

4. Read the voltage and the polarity. Selecta lower range (if feasible) to give ahigher resolution.

Range overload is indicated by a“1” or a “-1” in the display with allthe other digits blanked.

5. Select a higher range. If the highestvoltage range is in use, interrupt themeasurement immediately.


V W COM 200 mA 10 A

OFFOFFV V~

W A

A~


Set the function/range switch to the OFFposition when the multimeter is not in use.

00.0




V W COM 200 mA 10 A

OFFOFFV V~

W A

A~

00.0DC Current (0 - 200 mA)

1. Connect one test lead to the commoninput (COM) and another test lead tothe yellow input labeled 200 mA.

The input has a 200 milliamperefuse installed. Check the fuse ifcurrent is not detected.

2. Set the function/range switch to (V ),and to the highest DC current range forthis input: 200 mA (200 milliamperes fullscale).

Remove power from the circuit tobe tested (no current should flow).

3. Connect the test leads securely in serieswith a circuit element.

4. Apply power to the circuit being tested.

5. Read the current. Select a lower range(if feasible) to give a higher resolution.





V W COM 200 mA 10 A

OFFOFFV V~

W A

A~

00.0DC Current (0 - 10 A)

1. Connect one test lead to the commoninput (COM) and another test lead tothe yellow input labeled 10 A.

The input has a 10 ampere fuseinstalled. Check the fuse if currentis not detected.

2. Set the function/range switch to (V ),and to the only DC current range for thisinput: 10 A (10 amps full scale).

Remove power from the circuit tobe tested (no current should flow).

3. Connect the test leads securely in serieswith a circuit element.

4. Apply power to the circuit being tested.

5. Read the current.



AC Voltage (0 - 750 V)

1. Connect one test lead to the commoninput (COM) and another test lead tothe Volt or Ohm input (V W). Read thenote at the meter input.

2. Set the function/range switch to (V~),and to the highest AC voltage range:750 V (750 volts full scale).

3. Place the ends of the test leads acrossthe circuit element.

4. Read the voltage and the polarity. Selecta lower range (if feasible) to give ahigher resolution.

Range overload is indicated by a“1” or a “-1” in the display with allthe other digits blanked.

5. Select a higher range. If the highestvoltage range is in use, interrupt themeasurement immediately.


V W COM 200 mA 10 A

OFFOFFV V~

W A

A~



00.0


1. Locate the power switch.

Turn the power supply off.

2. Rotate both voltage controls to theirminimum position (fully counterclockwise). See Figure 1.

3 Rotate both current controls to theirmaximum position (fully clockwise).

4. Connect the load between the positive(+) and the negative (-) terminal.

5. Connect the ground terminal (GND) asneeded.

6. Plug the line cord into a wall receptacle.

7. Turn on the power supply.

8. Rotate the voltage controls to obtain thedesired current.

- +GND

VOLTAGE CURRENT

COURSE FINE FINE

POWER

COURSE

Figure 1. Good Will Instrument Company, Ltd power supply(model GPR-3060).

Helmholtz Coil Internal Power Supply Installation

1. Remove top cover (4 Screws).

2. Remove 4 nuts and lock washers holding tube bracket and move tube bracket to allow accessto wiring.

3. Disconnect wires from and remove binding posts (front panel).

4. Disconnect and remove circuit breaker (rear panel).

5. Move tube bracket out of coil assembly. Unsolder and remove shunt resistor and wiresattached to tube socket.

6. Remove old (magnetic) mounting hardware from tube socket and replace with stainless steelor brass (nonmagnetic) hardware.

7. Solder Tube Socket Cable Assembly (0003A05) to tube socket. Set tube socket assemblyaside.

8. Snap 5/8" hole plug into circuit breaker hole in rear panel.

9. Install Pin Jack Cable Assemblies (0003A06-01, 02) in “Filament” holes in front panel.Black cable assembly goes in hole marked ‘Cathode’.

10. Push 5/16" vinyl grommet into “Plate” hole in front panel.

11. Install Power Jack Cable Assembly (0003A04) and LED Indicator Cable. Assembly(0003A03) into “Grid” and “Plate” holes respectively. Route cables outside of Helmholtzcoils.

12. Move tube bracket assembly back into Helmholtz coil assembly and route cable as above.Solder Pin Jack Cable Assemblies to tube socket.

13 Install tube bracket and power supply mounting bracket (4 nuts and lock washers).

14. Connect transistor extension cable assembly to transistor Q1 and install power supply board(2 screws).

15. Attach cables to power supply board.

16. Test and adjust power supplies for proper tube operation.

17. Install top cover (4 screws).

18. Done.

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UNIVERSITY OF NEW MEXICO

ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP

DEPARTMENT OF PHYSICS AND ASTRONOMY

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BMon Sep 11, 2000 15:21:33

21

J2

21

J1

+t F11.35A

R5750

C1120u

FILAMENTCURRENT

2.5V

D11N4002

VREF

VR1TL431CLP

2.5V

R1

180

CW

R410K

R9

10KSMF.10uC2

R362K

UNUSED PARTS

6 -

5 +

7

LMC660CN

U1:B

11V-

4

V+

U1:E

VINC3

.01u

SHUNT VOLTAGEREGULATOR VR1

VIN

0003T0101 1 OF 2

FIL_OUT

CONTROLAMPLIFIER U1:A

CURRENTREGULATORTRANSISTOR Q2

A

NOTES:UNLESS OTHERWISE SPECIFIED:1. ALL 5% RESISTORS ARE 1/4 W CARBON FILM WITH VALUES IN OHMS.2. ALL 1% RESISTORS ARE 1/4 W METAL FILM WITH VALUES IN OHMS.3. ALL POLARIZED CAPACITORS ARE TANTALUM ELECTROLYTIC WITH VALUES IN MICROFARADS.4. FOR FABRICATION DETAILS SEE DRAWING 0003T0102 REV A.5. FOR ARTWORK SEE DRAWING 0003T0103 REV A.6. FOR ASSEMBLY SEE DRAWING 0003T0104 REV A.

2N6036Q2

J. BEHRENDT

1 OF 2

FIL_RET

7/11/00

2 -

3 +

1

LMC660CN

U1:A

R11

0.50 1W

A0003T0101

BEAM TUBE POWER SUPPLY SCHEMATIC DIAGRAM

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R122.4

1W

.10uC5

SMF

VREF

VIN

4 -IN

1 +IN

3-OUT

2+OUT

U35A48S

CW

R610K

R10

10K

9 -

10 +

8

U1:CLMC660CN

Q32N4401

3.0KR13

R72.4

1W

R17240K

1/2W

R16330K1/2W

.10uC4

SMF 0-33V DC-DC CONVERTER U3

0-200V DC-DC CONVERTER U2

CONTROL AMP. U1C, Q3

CONTROL AMP. U1D, Q1

VIN

4 -IN

1 +IN

3-OUT

2+OUT

U25A200S

13 -

12 +

14

LMC660CN

U1:DQ1

2N4401

VREF

R153.0K

CW

R210K

R8

10K

R1439K

400V.10uC8

PP

0-200V

R1810K

0003T0101 2 OF 2

C9

500V4700p

A

0-33VFIL_OUT

FIL_RET

0003T0101

BEAM TUBE POWER SUPPLY SCHEMATIC DIAGRAM

2 OF 2

12

43

C6

50V4.7u

TANT.

C7

50V4.7u

TANT.

A

Exposure Mask

Laser print on an 8-1/2” x 11” sheet of tracing Vellum (Dietzgen196M100 or equivalent). Print in Landscape orientation.

The exposure mask must be printed fullsize. Deselect the Shrink Oversized Pagesto Paper Size option (Acrobat 5.0) or theFit To Page option (Acrobat 4.0). To seethis option in Mac OS you must chooseAcrobat x.x from a pop-up menu in the Printdialog box. In Windows, this option is visiblein the Print dialog box. In Mac OS deselectall PostScript™ Options found in the PageSetup dialog box.

BILL OF MATERIALS DATE: 9/11/00

ELECTRON BEAM TUBE POWER SUPPLY

BOM0003T01 REV. ARefDes Description Part Number MfrC1 CAP., ELECTROLYTIC, 120uF @ 50WV EEU-FA1H121 PANASONICC2 CAP., STACKED METAL FILM, .10uF ECQ-V1H104JL PANASONICC3 CAP., CERDISC, .01uF ECK-FIH103ZF PANASONICC4 CAP., STACKED METAL FILM, .10uF ECQ-V1H104JL PANASONICC5 CAP., STACKED METAL FILM, .10uF ECQ-V1H104JL PANASONICC6 CAP., TANTALUM ELECT. ECS-F1HE475K PANASONICC7 CAP., TANTALUM ELECT. ECS-F1HE475K PANASONICC8 CAP., PP, 400WV, .10uF ECW-F4104JB PANASONICC9 CAP., CERDISC, 500WV, 4700pF ECK-D2H472KB5 PANASONICD1 RECTIFIER, 1A, 200V 1N4002 MOTOROLAF1 FUSE, PTC RESETTABLE, 1.35A RUE135 RAYCHEMJ1 HEADER, .156, 2-CKT 26-48-1025 MOLEXJ2 HEADER, 2-PIN, .100 22-23-2021 MOLEXJ3 HEADER, .156, 4-CKT 26-48-1045 MOLEXQ1 TRANSISTOR, NPN SILICON 2N4401 ONQ2 TRANSISTOR, PNP DARLINGTON 2N6036 ONQ3 TRANSISTOR, NPN SILICON 2N4401 ONR1 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR2 POT., TRIMMER 3386F-103 BOURNSR3 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR4 POT., TRIMMER 3386F-103 BOURNSR5 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR6 POT., TRIMMER 3386F-103 BOURNSR7 RES., MOX, 1W, 5% RSF100JB YAGEOR8 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR9 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR10 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR11 RESISTOR, MOX, 1 W, 5% RSF100JB YAGEOR12 RES., MOX, 1W, 5% RSF100JB YAGEOR13 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR14 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR15 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR16 RESISTOR, CF, 1/2W, 5% CFR-50JB YAGEOR17 RESISTOR, CF, 1/2W, 5% CFR-50JB YAGEOR18 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOU1 CMOS QUAD OP AMP LMC660CN NATIONALU2 CONVERTER, DC-DC 5A200S PICOU3 CONVERTER, DC-DC 5A48S PICOVR1 REGULATOR, SHUNT VOLTAGE TL431CLP TI

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BFri Dec 08, 2000 11:42:20

0003A050003A03

0003A024

123

ITEM DESCRIPTION PART NO.POWER JACK CABLE ASSEMBLYLED INDICATOR CABLE ASSEMBLYTUBE SOCKET CABLE ASSEMBLYTRANSISTOR EXTENSION CABLE ASSEMBLY

0003A04

Q1

P/O POWER SUPPLY MOUNTING BRACKET ASSEMBLY 0003A01

4

P4

5 PIN JACK CABLE ASSEMBLY, RED 0003A06-02

6 PIN JACK CABLE ASSEMBLY, BLK 0003A06-01

P2

1

J2

J1P1 BEAM TUBE POWER SUPPLY ASSY. 0003T01

2

0003T02 1 OF 1

J3 P3

XV1

P/O E/M APPARATUS

3

5

A

ADDED ITEMS 5 AND 6A 12/7/00

J. BEHRENDT

0003T021 OF 1

DEFLECTION TUBE POWER SUPPLY INTERCONNECTION DIAGRAM

6

A

9/7/00

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UNLESS OTHERWISE SPECIFIEDDIMENSIONS AND TOLERANCES ARE IN INCHES ANDAPPLY TO THE FINISHED PART

TOLERANCE ON:ANGLES2 PLACE DEC 3 PLACE DEC

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8/9/00

0003A01.DWG

J. BEHRENDT

0003A0101

REMOVE BURRS AND BREAK ALL EDGES.

0003A0101

POWER SUPPLY MOUNTING BRACKET

FABRICATION.062 ALUMINUM

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0003A01.DWG

J. BEHRENDT

ITEM QTY DESCRIPTION PART NUMBER MANUFACTURER

NUT, CAPTIVE, #4-40 FLUSH1

1

SCREW, PAN HEAD, SLOTTED, #6-32 X 14

42

LOCK WASHER, INT. TOOTH, #65

2

21 SCREW, PAN HEAD, PHILLIPS, #4-40 X 14, 31 LOCK WASHER, INT. TOOTH, #4

23222N6036K10-58

STANDOFF, HEX, THREADED, #6 X 12 TRANSISTOR, PNP DARLINGTON, 2N6036INSULATOR PAD, HEATSINK, TO-220

17

18

26

H. H. SMITHMOTOROLA

AAVID

9

2

3

4

6

7

5

8 2 PL

0003A0102


ASSEMBLY

0003A0102

NOTES:

1. PRESS CAPTIVE NUT INTO REAR OF BRACKET.2. ASSEMBLE REMAINING COMPONENTS.


9

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0003A02

2.7 REF.

ITEM QTY DESCRIPTION PART NUMBER MANUFACTURERWIRE, 24 AWG, 1000V, PVC, 80°C, GRN, 2 12 "1 1 1550 ALPHA

TERMINAL, CRIMP, 22-30 AWG, TIN4 3 08-50-0114 MOLEXHOUSING, CRIMP TERM., .100" O/C, 3 CKT.5 1 22-01-2031 MOLEX

2 1 WIRE, 24 AWG, 1000V, PVC, 80°C, YEL, 2 12 " 1550 ALPHA3 1 WIRE, 24 AWG, 1000V, PVC, 80°C, BLU, 2 12 " 1550 ALPHA

1

2

3

4

5

NOTES:

1. STRIP ONE END OF WIRE 18 " AND APPLY TERMINAL USING APPROVED CRIMP.2. STRIP REMAINING END OF WIRE 316 " AND TIN.3. INSERT TERMINATED WIRE IN HOUSING AS SHOWN.

0003A02

TRANSISTOR EXTENSIONCABLE ASSEMBLY

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8/23/00

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0003A03


TUBING, HEAT SHRINKABLE, 3 32 X 12 2 2 FIT-221-3 32 ALPHA

TERMINAL, CRIMP, 22-30 AWG, TIN5 2 08-50-0114 MOLEXHOUSING, CRIMP TERM., .100" O/C, 2 CKT.6 1 22-01-3027 MOLEX

3 1 WIRE, 24 AWG, 1000V, PVC, 80°C, RED, 7 " 1550 ALPHA4 1 WIRE, 24 AWG, 1000V, PVC, 80°C, BLK, 7 " 1550 ALPHA

12

5

6

NOTES:

1. STRIP ONE END OF EACH WIRE 316 ", TIN AND SOLDER TO LED (RED TO ANODE, BLACK TO CATHODE.)2. INSTALL HEAT SHRINK TUBING.3. TWIST WIRES TOGETHER.4. STRIP OTHER END OF EACH WIRE 18 " AND APPLY TERMINAL USING APPROVED CRIMP.5. INSERT TERMINATED WIRES IN HOUSING AS SHOWN.

0003A03

LED INDICATOR CABLE ASSEMBLY

2

3

4

LN21RPHLLED, RED DIFFUSED1 1 PANASONIC

7.2 REF.

SH 1 REVDWG NO


TITLE

SIZE DWG NO REV


B -DWG FILENAME



0.02 0.005 1/2MATL

FINISH

DRAWN

DESIGNER

APPROVED

ENGINEER

DATE

DATE

DATE

DATE




DATEREV DESCRIPTION

REVISIONS

APPROVED

8/24/00

0003A04.DWG

J. BEHRENDT

0003A04


TUBING, HEAT SHRINKABLE, 18 X 12 2 2 FIT-221-18 ALPHA

TERMINAL, CRIMP, 18-24 AWG, BRASS5 2 08-50-0106 MOLEXHOUSING, CRIMP TERM., .156" O/C, 2 CKT.6 1 09-50-8021 MOLEX

3 1 WIRE, 18 AWG, 1000V, PVC, 80°C, WHI, 7 " 1555 ALPHA4 1 WIRE, 18 AWG, 1000V, PVC, 80°C, BLK, 7 " 1555 ALPHA

12

5

6

NOTES:

1. STRIP ONE END OF EACH WIRE 14 ", TIN AND SOLDER TO POWER JACK (WHITE TO PIN TERMINAL, BLACK TO SLEEVE TERMINAL.)2. INSTALL HEAT SHRINK TUBING.3. TWIST WIRES TOGETHER.4. STRIP OTHER END OF EACH WIRE 18 " AND APPLY TERMINAL USING APPROVED CRIMP.5. INSERT TERMINATED WIRES IN HOUSING AS SHOWN.

0003A04

POWER JACK CABLE ASSEMBLY

2

3

4

722AJACK, PANEL, MINIATURE POWER1 1 SWITCHCRAFT

7.6 REF.

SLEEVESHUNTTERMINAL

SLEEVE TERMINAL

PIN TERMINAL

JACKREARVIEW

SH 1 REVDWG NO


TITLE

SIZE DWG NO REV


B -DWG FILENAME



0.02 0.005 1/2MATL

FINISH

DRAWN

DESIGNER

APPROVED

ENGINEER

DATE

DATE

DATE

DATE




DATEREV DESCRIPTION

REVISIONS

APPROVED

8/24/00

0003A05.DWG

J. BEHRENDT

0003A05


WIRE, 18 AWG, 1000V, PVC, 80°C, GRN, 8 "2 1 1555 ALPHA

TERMINAL, CRIMP, 18-24 AWG, BRASS5 4 08-50-0106 MOLEXHOUSING, CRIMP TERM., .156" O/C, 4 CKT.6 1 09-50-8041 MOLEX

3 1 WIRE, 18 AWG, 1000V, PVC, 80°C, WHI, 8 " 1555 ALPHA4 1 WIRE, 18 AWG, 1000V, PVC, 80°C, BLK, 8 " 1555 ALPHA

12 5

6

NOTES:

1. STRIP ONE END OF EACH WIRE 3 8 " AND TIN.2. STRIP OTHER END OF EACH WIRE 18 " AND APPLY TERMINAL USING APPROVED CRIMP.3. INSERT TERMINATED WIRES IN HOUSING AS SHOWN.

0003A05

34

1555WIRE, 18 AWG, 1000V, PVC, 80°C, RED, 8 "1 1 ALPHA

TUBE SOCKET CABLE ASSEMBLY

8.5 REF.

SH 1 REVDWG NO


TITLE

SIZE DWG NO REV


B -DWG FILENAME



0.02 0.005 1/2MATL

FINISH

DRAWN

DESIGNER

APPROVED

ENGINEER

DATE

DATE

DATE

DATE




DATEREV DESCRIPTION

REVISIONS

APPROVED

12/7/00

0003A02.DWG

J. BEHRENDT

0003A06

ITEM QTY DESCRIPTION PART NUMBER MANUFACTURERTIP JACK, INSULATED, STANDARD, BLK1 1 105-0803-001 JOHNSON

2 1 TUBING, HEAT SHRINKABLE, 1/8" X 1/2" FIT-221-1/8 ALPHA3 1 WIRE, 24 AWG, 1000V, PVC, 80°C, BLK, 6 " 1550 ALPHA

NOTES:

1. STRIP BOTH ENDS OF WIRE 3/8", LOOP, ATTACH ONE END TO JACK AND SOLDER.2. INSTALL HEAT SHRINK TUBING.

0003A06

PIN JACK CABLEASSEMBLY

6.6 REF

2 3

1

PART NO. 0003A06-01

ITEM MANUFACTURERQTY DESCRIPTION PART NUMBER

FIT-221-1/8105-0802-001

1550WIRE, 24 AWG, 1000V, PVC, 80°C, RED, 6 "TUBING, HEAT SHRINKABLE, 1/8" X 1/2"TIP JACK, INSULATED, STANDARD, RED

123 1

1 1 JOHNSONALPHAALPHA

PART NO. 0003A06-02

UNM PROPIETARY AND CONFIDENTIAL INFORMATION

Sheet:

Rev:Size:

Date:

Prepared By:

Approved By:

Scale:

Dwg #:

TITLE:

UNDERGRADUATE LABORATORIESPhone: (505) 277-5805 FAX: (505) 277-1520

PENDULUM SUPPORT

ANSI B A

1/2

JAP

07.11.00 1 OF 2

161L-017

4.875

MAGNETCENTER LINEHELMHOLTZ COILS

(Ø20.4 cm)

ITEM 2

ITEM 3

ITEM 1 SHRINK TUBING

Ø.188 REF.

2.00 REF.

PIN HOLE

1.000 TYP.

1.00

SEE NOTE 7

MAGNET DETAILSCALE 1/1

SEE NOTE 6

2 cm (REF)

30.00 cm

NOTES:1. MATERIAL: ALUMINUM (6061-T6).2. FINISH: #32 OR BETTER, ALL OVER (NO SCRATCHES).3. BLACK ANODIZE. LIGHT OIL (NO RESIDUE).4. BREAK EDGES AND CORNERS .005 MIN. R (SMOOTH).5. ALL DIMENSIONS ±0.005 UNLESS NOTED.6. ALNICO MAGNET. MAGNETIC MOMENT = 0.1 A-m2.7. NYLON MONOFILAMENT FISHING LINE (10 # TEST). LOOP AROUND MAGNET UNDER SHRINK TUBING. EXIT THROUGH PIN HOLE. HEAT TUBING TO SECURE.

ALIGNMENT SLOT (ORIENT AS SHOWN)

UNM PROPIETARY AND CONFIDENTIAL INFORMATION

Sheet:

Rev:Size:

Date:

Prepared By:

Approved By:

Scale:

Dwg #:

TITLE:

UNDERGRADUATE LABORATORIESPhone: (505) 277-5805 FAX: (505) 277-1520

PENDULUM SUPPORT

ANSI B A

1/2

JAP

07.12.00 2 OF 2

161L-017

SEE NOTE 6

16.625

Ø.193 REAM THRU Ø.516 REAM THRU

11.8114.375

Ø1.000

SEE NOTE 8

ITEM 1 (ROD)

ITEM 2 (TUBE)SCALE 1:1

Ø.500 REF

10.000

1.929

SEE NOTE 7

CHAMFER 45° x .031 DP. EACH END

CHAMFER 45° x .031

CHAMFER 0.063 x 45°

A

Ø.144 THRU. C'BORE Ø.375 x .250 DP.

Ø5.500

A

.500

ITEM 3 (BASE)

ALIGNMENT SLOTSEE NOTE 9

7.874

SEE NOTE 7

NOTES:1. MATERIAL: ALUMINUM (6061-T6).2. FINISH: #32 OR BETTER, ALL OVER (NO SCRATCHES).3. BLACK ANODIZE. LIGHT OIL (NO RESIDUE).4. BREAK EDGES AND CORNERS .005 MIN. R (SMOOTH).5. DECIMAL DIMENSIONS ±0.005. METRIC: ±0.01 cm.6. TUBING: Ø0.500 x .063 WALL. PAPER O.D. (SMOOTH).7. V-GROOVE. 0.020 WIDE x 0.020 DP.8. TAP (Ø.138) 6-32 UNC-2B x 0.500 ± 0.125 DP. EACH END.9. 0.020-0.030 WIDE x .031 DP. FILL WITH WHITE PAINT.

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