Piezoelectric force sensors – Piezoelectric ring force transducers for tensile and compression forces from

20 kN to 700 kN, Types 9101C, 9102C, 9103C, 9104C, 9105C, 9106C, 9107C

Page 3/6

© 2020 ... 2021 Kistler Group,

Eulachstrasse 22, 8408 Winterthur, Switzerland

Tel. +41 52 224 11 11, info@kistler.com, www.kistler.com. Kistler Group products are

protected by various intellectual property rights. For more details visit www.kistler.com

This information corresponds to the current state of knowledge. Kistler reserves

the right to make technical changes. Liability for consequential damage resulting

from the use of Kistler products is excluded.

Fig. 1: Dimensions Type 9101C … 9107C

Typ

d

D

H

s

t

9101C

6.5

14.5

8

14.85

7.25

9102C

10.5

22.5

10

18.6

7.25

9103C

13

28.5

11

21.65

7.25

9104C

17

34.5

12

24.65

7.25

9105C

21

40.5

13

27.65

7.25

9106C

26.5

52.5

15

33.65

7.25

9107C

40.5

77.2

17

45

6.75

Dimensions metric [mm]

Dimensions Type 9101C … 9107C

Bild 1: Abmessungen Typ 9001C … 9071C

Pretension

Piezoelectric force sensors are always used preloaded in a

mounting structure. In general, a preloading force of at least

20% of the nominal force is recommended. The recommen-

ded, effective measuring range is thereby achieved and the

non-linearities in the lowest load range are eliminated.

Reasons for the pretension:

• Highest level of linearity and stability

• Measurement of tensile and compression forces

• Use of the high sensor stiffness for a large frequency range

• Ideal force distribution

The pretension must be selected so that the sum of preloading

force (Fv) and the process force (±Fz) lies within the measuring

range of the sensor at all times (see graphic).

Provided it is technologically possible, the average loading of

the sensor should be 50% of the nominal force. At this set

point, the tolerance with respect to the bending moment is at

its greatest (see below, "bending moment").

When pretensioning, the force must be measured with the

sensor itself. The sensitivity specified in the technical data is to

Fig. 2:

Nominal and measuring ranges

be used here. The mounting surfaces must be flat, stiff and, if

possible, ground. Please refer to the user manual for further

details.