RF9 Strain Gauge Rosette for Printed Circuit Board Testing and Small Surfaces

Thanks to its three stacked measuring grids, the smallest version of the RF9 miniature SG rosette is only 5 mm in size. It enables biaxial stress states with unknown principal stress directions to be determined in the most confined of spaces, owing to its small diameter. The SG rosette is, therefore, particularly suitable for measurements on electric circuit boards or especially small components.


The following variants are available:

  • Pre-wired with thin, enameled copper wires (d=0.2 mm) and a particularly small measuring grid: 1-RF9x-0.8/120ZE
  • Pre-wired with thin, enameled copper wires and a 1 mm² measuring grid (JEDEC/IPC 9704-compliant): 1-RF9x-1/120ZE
  • Pre-wired with 0,1m enameled copper wires + 3 m temperature-resistant TPE cable (4-wire configuration), and a 2 mm² measuring grid (new and JEDEC/IPC 9704-compliant):1-RF9x-1.4/350ZE

  • Without a cable: 1-RF95-0.8/120_W

 

The miniature rosettes are now also available with geometries that allow for measurements in compliance with the JEDEC/IPC 9704 standard.

Compact

  • The smallest variant is only 5 mm in diameter
  • Three stacked measuring grids
  • 0.8 mm measuring grid length

If space is a constraint: Analysis of biaxial stress states with unknown principal stress direction in the most confined space­

Easy handling

  • Various connection options
    • Pre-wired with color-coded, enameled copper wires, 0.5 m wire length in a 2-wire configuration
    • With 3 m TPE cable in a 4-wire configuration
    • Without connection wires

No soldering on the strain gauge required

Available for immediate delivery

  • Standard versions available from stock

Save time and start straight away!

RF9 Technical Features

 

Ordering number 

Nominal (rated) resistance

Dimensions [mm/inch]

Maximum excitation voltage [V]

Measuring grid

Carrier

Ω

a

b

c

 

 

 

 

 

 

 

1-RF91-0.8/120ZE1200.80.951
1-RF93-0.8/120ZE1200.80.951
1-RF95-0.8/120ZE1200.80.951
1-RF91-1/120ZE*120115.21
1-RF93-1/120ZE*120115.21
1-RF95-1/120ZE*120115.21
1-RF91-0.8/120_W1200.80.9 
1-RF93-0.8/120_W1200.80.95
1-RF95-0.8/120_W1200.80.951
1-RF91-1.4/350VE*3501.41.461
1-RF93-1.4/350VE*3501.41.461
1-RF95-1.4/350VE*3501.41.461

* JEDEC/IPC 9704-compliant

Product Image: Pre-Wired RF91 Strain Gauge

Video: Bonding of a RF91 Rosette to a PCB

 

 

Watch the video and learn how to bond the RF91 miniature rosette on a PCB:

  • What equipment is needed
  • Which steps to follow

Product Literature

Title / DescriptionLanguage
Data Sheets
German
English
Russian
Declaration of Conformity
English, German
Tech Notes
English
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