Page 15 - BlueFastening-Systems_Brochure_07192017

Engineering

Drive size Comparison of piezo elements

The following drive sizes are necessary to apply the piezo
element:

Drive Torx® TorxPlus® LocTec® Internal hex Piezo element Piezo PMTS

Internal ≥ TX 30 ≥ IP 30 ≥ 30-LI ≥ SW 3 Low costs
load drive ≥ 5EP

External ≥ E5 not ≥ SW 3 Short delivery lead time
load drive available

Other drives on request Temperature-resistant

Temperature range Media-resistant

The temperature range is restricted by the piezo element Corrosion-resistant
used, as below:
Note: Depending on the application it is possible to make a special measuring head
to take variant measurements.

Piezo element Measurement range Area of application

Piezo –20°C to +80°C –20°C to +100°C

PMTS* –40°C to +180°C –270°C to +320°C

* Permanent Mounted Measurement range: Area of application:
Transducer System Recording measurement Resistance of piezo
signal elements / components

Screw materials Piezo PMTS: Permanent Mounted
Transducer System
The following screw materials can be qualified:
• Steel Source: Intelifast GmbH
• Aluminum

Processes carried out on the screw

To qualify and implement the ultrasound preload force
measurement the following mechanical processes need to be
made on the fasteners:
• Plane parallel surface at head
• Plane parallel surface at tip
• Apply piezo element

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