Aktek AT300 Gebruikershandleiding - Pagina 16

Blader online of download pdf Gebruikershandleiding voor {categorie_naam} Aktek AT300. Aktek AT300 16 pagina's. Ultrasonic thickness gauge

impede accurate measurement of total material thickness, it does provide the user with

positive indication of air gaps in the laminate.

Suitability of materials

Ultrasonic thickness measurements rely on passing a sound wave through the material

being measured. Not all materials are good at transmitting sound. Ultrasonic thickness

measurement is practical in a wide variety of materials including metals, plastics, and glass.

Materials that are difficult include some cast materials, concrete, wood, fiberglass, and

some rubber.

Couplants

All ultrasonic applications require some medium to couple the sound from the

transducer to the test piece. Typically a high viscosity liquid is used as the medium. The

sound used in ultrasonic thickness measurement does not travel through air efficiently.

A wide variety of couplant materials may be used in ultrasonic gauging. Propylene

glycol is suitable for most applications. In difficult applications where maximum transfer of

sound energy is required, glycerin is recommended. However, on some metals glycerin can

promote corrosion by means of water absorption and thus may be undesirable. Other

suitable couplants for measurements at normal temperatures may include water, various oils

and greases, gels, and silicone fluids. Measurements at elevated temperatures will require

specially formulated high temperature couplants.

Inherent in ultrasonic thickness measurement is the possibility that the instrument will

use the second rather than the first echo from the back surface of the material being

measured while in standard pulse-echo mode. This may result in a thickness reading that is

TWICE what it should be. The Responsibility for proper use of the instrument and

recognition of these types of phenomenon rests solely with the user of the instrument.

NOTE: Because of AKTEK's policy of improving their products, the AT300 would

be revised and improved. Please inform us about misunderstandings or errors

which you may find in this manual comparing it to the device you bought. Do not

hesitate to contact us to suggest how to improve our devices. Thank You.

Aktek Endüstriyel Ekipman ve Enstrümantasyon Ltd.Şti.

Perpa Tic. Merkezi A-Blok Kat:11 No:1582

Phone: 0212 621 7200

www.aktek.com.tr

Okmeydanı-İstanbul-Türkiye

Fax: 0212 621 7201