digiClip Digital Clip-On Extensometers 

These highly efficient and cost-effective extensometers offer significant advantages over strain-gage systems in terms of measuring range, accuracy and signal processing. digiClip is available from ZwickRoell in four different versions for extension and/or change-in-width measurement. This digital system delivers uniform accuracy over the entire gage length. digiClip's compact design is achieved by miniaturizing the digital scale, while specimen loading is minimized by the close proximity of the lightweight measurement system to the specimen.
digiClip Ekstensometre çatalları

Key Advantages and Features

Advantages and features

  • Very high resolution and accuracy over the entire measuring range.
  • During extension measurement the measuring range can be switched from "Tension only" to "Tension and compression".
  • Low overall height allows digiClip to be used for small grip-to-grip separations, while its low weight and compact design minimize the load on specimen.
  • Adjustable depth-stop with scales for common specimen widths helps to ensure that the clip-on extensometer is always attached centrally to the specimen.
  • Very high resolution (0.02 µm) in all versions.

Description of operation

ZwickRoell Inkremental Ekstensometreler, plastik ve metallerin test için tasarlanmıştır. Metal testinde, uzunluk değişimi ve kesit daralması ölçümü gereksinimlerini karşılamaktadırlar.

Artımlı sistemlerde toplam ölçüm uzunluğu üzerinden sabit kalabilen bir kesinlik hakimdir. Artımlı skalaların mintyatürleştirilmesi olanağı ile ekstensometrelerin kompakt yapısı avantajları sunulmaktadır. Hafif yapıya sahip ölçüm sistemi doğrudan numuneye takılmaktadır. Böylelikle numunenin yükü minimize edilmektedir.

digiClip-Ekstensometrelerin kullanım alanları, farklı ilk ölçüm boyu opsiyonlarına göre ve ölçüm yolunun 'yalnızca çekme' ya da 'Çekme ve basma' gibi ayarlanabilen uyumlu değişikliğine göre değişmektedir.

Tensile Test on Plastics with digiClip and makroXtens

1:41

Tensile test on plastics to ISO 527 with makroXtens

makroXtens II is a universal and versatile, high-accuracy extensometer

digiClip Short & digiClip Long Clip-On Extensometers

Range of application

digiClip Short and digiClip Long are largely identical with regard to range of application, design, operation and the advantages and features they offer.

The difference lies in digiClip Long's extended measurement travel, which allows extensions up to 50% to be covered and makes it suitable in many cases for testing metals up to break.

The digiClip clip-on extensometer is ideal for precise modulus and yield-point determination to ISO 527-1 on rigid and semi-rigid plastics and for determining strain at maximum stress, plus in many cases strain at break on rigid plastics with low extension.

It can also be used for determining the compressive strength of plastics or determining Young's modulus for compression on metals.

Advantages and features

  • Additional knife-edges for notch-sensitive specimens included in delivery
  • Adjustable initial gauge lengths
  • Initial gauge length automatically locked at attachment and unlocked at release
  • Guaranteed high-resolution Young's modulus determination as per ISO 527-1
  • Maximum error of ±1 μm in differential displacement measurement between two measurement points in a range from 20 μm to 200 μm, completely satisfying the additional requirement as per ISO 527-1 (2011)
  • Approved for closed-loop strain-rate control as per ISO 6892-1 (2009) Method A (1) and ASTM E8 – 09 Method B
  • Mounting bracket for attachment to load frame plus fall protection included in delivery.

Technical data

digiClip clip-on extensometers for AllroundLine, zwickiLine and ProLine testing systems

Type

digiClip, short

digiClip Long

Item No.

078779

078781

Initial gage length:

Convertible

20/25/25.4/30

50/50,8 (2")/55[1]

mm

Optional

50/50.8/55[1]/75/80/85[1]

65/70[1]/75/80/85[1]/100/105[1]

mm

Measurement travel:

For tension

-0.2 ... 13.5

-0.2 ... 40

mm

For tension and compression

-5.2 ... 8.5

-5.2 ... 35

mm

Specimen dimensions

Round specimens

up ... Ø 20

up ... Ø 20

mm

Flat specimens (d x w)

Up ... 20 x 30

Up ... 20 x 30

mm

Resolution

0.02

0.02

μm

Accuracy

Class 0.5

Class 0.5

to EN ISO 9513

Overall height

At L0 20, 25, 30

36

-

mm

At L0 50

60

77

mm

At L0 80

90

90

mm

At L0 100

-

110

mm

At 55 < L0 ≤ 65

-

L0 + 5

mm

At 65 < L0 ≤ 105

-

L0 + 10

mm

Weight, approx.

100

170

g

Ambient temperature

+10 ... +35

+10 ... +35

°C

Housing color

RAL 7011

RAL 7011

  1. Changing the measurement range: see values in the measurement range for tension and compression

digiClip Transverse

Key advantages and features of digiClip Transverse

Applications

The digiClip transverse strain extensometer is designed for r-value determination on metals in accordance with ASTM E517 and ISO 10113. In addition, Poisson's ratio can be determined in tensile tests and in-plane shear (IPS) in the ±45° shear test on fiber composite materials.

Technical data

  • digiClip Transverse for AllroundLine and zwickiLine testing systems
  • With a fixed measurement line

Type

digiClip Transverse

Item No.

078783

Measuring range:

Setting 1

8.5 ... 20

mm

Setting 2

13.5 ... 25.4

mm

Equals:

with specimen width 10 mm

1.5

mm

with specimen width 15 mm

6.5

mm

with specimen width 20 and 25.4 mm

11.5

mm

Specimen dimensions

flat specimens (d x w)

up to 6 x 10 25

mm

Resolution

0.02

μm

Accuracy

Class 0.5

to EN ISO 9513

Overall height

42

mm

Weight, approx.

115

g

Ambient temperature

+10 ... +35

°C

Housing color

RAL 7011

digiClip Biax

Key advantages and features of digiClip Biax

Applications

  • Bu tip ekstensometreler aşağıdaki uygulama alanlarında kullanılabilmektedir:
  • Metal malzemelerde ISO 10113, ASTM E 517 ve ISO 10275 normlarına göre uzama değişimi ve R-değeri tespiti
  • Kompozit malzemelerde oda sıcaklığında yapılan şu testlerde: 
    • Çekme testlerinde uzama değişimi tespiti için
    • Çekme testlerinde Poisson Oranı tespiti için
    • ±45° Shear (Kesme) testlerinde kesme davranışlarının ölçümü (In-Plane Shear, IPS)

Technical data

digiClip Biax for AllroundLine and zwickiLine testing systems

Type

digiClip Biax

Item No.

078785

Measurement travel for extension:

for tension

-0.2 ... 41.5

mm

Measurement travel for change in width (with fixed measurement line):

With a specimen width of 10 mm

1.5

mm

With a specimen width of 15 mm

6.5

mm

With a specimen width of 20 and 25.4 mm

11.5

mm

Specimen dimensions

Flat specimens (d x w)

up to 4 x 10 25

mm

Resolution

0.02

μm

Accuracy

Class 0.5

to EN ISO 9513

Mounted height

90

mm

Weight, approx.

300

g

Ambient temperature

+10 ... +35

°C

Storage temperature

-20 ... +55

°C

Housing color

RAL 7011

YUKARI