Pasco Scientific OS-8501 Скачать руководство пользователя страница 4

scientific

012-02675B

Interferometer

ii

Copyright Notice

The PASCO scientific Model OS-8501 Interferometer
manual is copyrighted and all rights reserved.  How-
ever, permission is granted to non-profit educational
institutions for reproduction of any part of this manual
providing the reproductions are used only for their
laboratories and are not sold for profit.  Reproduction
under any other circumstances, without the written
consent of PASCO scientific, is prohibited.

Limited Warranty

PASCO scientific warrants this product to be free from
defects in materials and workmanship for a period of
one year from the date of shipment to the customer.
PASCO will repair or replace, at its option, any part of
the product which is deemed to be defective in mate-
rial or workmanship. This warranty does not cover
damage to the product caused by abuse or improper
use.  Determination of whether a product failure is the
result of a manufacturing defect or improper use by the
customer shall be made solely by PASCO scientific.
Responsibility for the return of equipment for warranty
repair belongs to the customer.  Equipment must be
properly packed to prevent damage and shipped
postage or freight prepaid.  (Damage caused by
improper packing of the equipment for return shipment
will not be covered by the warranty.)  Shipping costs
for returning the equipment, after repair, will be paid
by PASCO scientific.

Copyright, Warranty and Equipment Return

Please—Feel free to duplicate this manual
subject to the copyright restrictions below.

Equipment Return

Should the product have to be returned to PASCO

scientific for any reason, notify PASCO scientific by

letter, phone, or fax BEFORE returning the product.

Upon notification, the return authorization and

shipping instructions will be promptly issued.

When returning equipment for repair, the units

must be packed properly. Carriers will not accept

responsibility for damage caused by improper

packing. To be certain the unit will not be

damaged in shipment, observe the following rules:

The packing carton must be strong enough for the
item shipped.

Make certain there are at least two inches of
packing material between any point on the
apparatus and the inside walls of the carton.

Make certain that the packing material cannot shift
in the box or become compressed, allowing the
instrument come in contact with the packing
carton.

Address:

PASCO scientific

10101 Foothills Blvd.

Roseville, CA 95747-7100

Phone:

(916) 786-3800

FAX:

(916) 786-3292

email:

[email protected]

web:

www.pasco.com

ä   NOTE:  NO EQUIPMENT WILL BE
ACCEPTED FOR RETURN WITHOUT AN

AUTHORIZATION FROM PASCO.

Содержание OS-8501

Страница 1: ...Copyright February 1986 10 00 Instruction Manual and Experiment Guide for the PASCO scientific Model OS 8501 012 02675 10 91 Revision B Interferometer scientific MODEL OS 8501 INTERFEROMETER...

Страница 2: ......

Страница 3: ...t Needed Additional Equipment Recommended Theory of Operation 2 Interference Theory The Michelson Interferometer Operation The Interferometer 4 The Movable Mirror 4 Aligning the Interferometer 5 Exp 1...

Страница 4: ...amage caused by improper packing of the equipment for return shipment will not be covered by the warranty Shipping costs for returning the equipment after repair will be paid by PASCO scientific Copyr...

Страница 5: ...laser We recommend the PASCO 0 5 mW He Ne Laser Model OS 9171 but any low power laser that operates in the visible range will work For optimum ease of alignment the level of the beam should be 1 5 in...

Страница 6: ...an interference pattern He allowed a single narrow beam of light to fall on two narrow closely spaced slits Opposite the slits he placed a viewing screen Where the light from the two slits struck the...

Страница 7: ...or M2 the path length of one of the beams can be varied Since the beam traverses the path between M2 and the beam splitter twice moving M2 1 4 wavelength nearer the beam splitter will reduce the optic...

Страница 8: ...ontrolled and measured using the micrometer knob Each division of the knob corresponds to 1 micrometer 10 6 meter of mirror movement The Movable Mirror To measure the wavelength of light the movement...

Страница 9: ...rtical line through the aperture Hold M2 in position and tighten the thumbscrew Rotate the beam splitter so its surface is at an angle approximately 45o with the incident beam from the laser see Figur...

Страница 10: ...M1 ALIGNMENT SCREWS LENS 18 mm FOCAL LENGTH LENS HOLDER LASER VIEWING SCREEN 45 M1 ALIGNMENT SCREWS Figure 6 ALIGNING THE LASER SPOTS Figure 7 POSITIONING THE LENS Adjust the Beam Splitter and M1 to s...

Страница 11: ...nt in any mechanical system involving reversals in direction of movement By beginning with a full counterclockwise turn and then turning only counterclockwise when counting fringes you can eliminate b...

Страница 12: ...Then plug the banana plug of the vacuum chamber into the hole in the interferometer base between the fixed mirror and the beam splitter Adjust the alignment screws of the fixed mirror so the center of...

Страница 13: ...auge Of course your room pressure may vary slightly from 76 cm Hg If you have a more accurate way of measuring room pressure you can use that value to replace 76 cm Hg in the above equation Mark a ref...

Страница 14: ...difference between these values mi mf is just m the number of fringes you counted as you evacuated the chamber Therefore m 2 d i 2d f However i o ni and f o nf where ni and nf are the initial and fin...

Страница 15: ...rs no other maintenance is required If the mylar strip gets damaged or a severe shock causes the interferometer to lose its alignment return the unit to PASCO scientific for repair Replacement Parts T...

Страница 16: ...e the interferometer with a spectral or other monochromatic light source Tape two thin pieces of wire or thread to the sur face of the diffuser to form cross hairs Set up the equipment as shown below...

Страница 17: ...ting Technical Support Before you call the PASCO Technical Support staff it would be helpful to prepare the following infor mation If your problem is with the PASCO apparatus note Title and model numb...

Страница 18: ......

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