Strain Gauges for Transducers

FCT SeriesCE

The conventional model, FCT-2-350, featured four gauge leads and was composed of two strain gauges, each arranged at a 45°angle and configured in a quarter-bridge circuit.
The newly added products feature a half-bridge configuration (two-gauge system) with three gauge leads.
This simplifies the bridge wiring and improves work efficiency by reducing the number of lead wires.
While some 45°-oriented strain gauges, such as the FLT-1 series, use a single sensing element, the FCT series employs a design with two strain gauges arranged side by side at 45°, making it easier to integrate into bridge circuits.
By adopting the half-bridge structure, the new design offers greater efficiency and ease of handling.

FCT-2-350-A-11-F
Type Uniaxial, 2-element (for torque measurement)
Sensing Element Material Cu-Ni Alloy
Material Material Special Plastic
Gauge Leads Material Silver-Plated Copper Wire
Conductor 1/0.14
Round-Trip Resistance per Meter 2.5Ω
Length Approx. 25mm
Solder Lead-Free Solder
Surface Protection Polyester Film
Creep Code

A, C, E, G, I, K, M, O, Q, S, U, W
Measurement Target Materials 11: Mild Steel
17: Stainless Steel
23: Aluminum
Operating Temperature Range -30 to +150℃
Temperature Compensation Range +10 to +100℃
Recommended Allowable Current 30 mA or less (for metallic measurement target materials)
Strain Limit*1 5%（50000με）
Fatigue Life*2 1×106 cycles

*1 Strain limit is based on results at room temperature
*2 Fatigue life is based on results at room temperature with a strain level of ±1500 με (15 Hz)

 

  • Single-element

    Single-element

    Gauge pattern Type Gauge length
    (mm)    		 Gauge width
    (mm)    		 Backing length
    (mm)    		 Backing width
    (mm)    		 Resistance
    (Ω)
    FCT-2-350-A FCT-2-350-A-11-F
    FCT-2-350-A-17-F
    FCT-2-350-A-23-F    		 2 1.5 7 5.6 350

Creep Compensation

Stable and high-precision creep characteristics are essential for strain gauge-type transducers. Generally, creep compensation is achieved by offsetting the creep of the elastic body (positive) and the creep of the strain gauge (negative). Our product allows for high-precision creep compensation by finely categorizing the turntab dimensions and identifying them with a creep code.

Gauge creep
Large    →    Small 
Creep code New Product
A > C > E > G > I > K > M > O > Q > S > U > W
Existing Product
C2 >　 C4　 >　 C6　 > C8

Features

  • Torque strain gauge for transducers with creep code
  • Half-bridge configuration
  • Gauge leads oriented in the same direction for easier terminal wiring
  • Gauge length: 2 mm
  • Gauge resistance: 350 Ω
  • 12 creep code patterns available: A, C, E, G, I, K, M, O, Q, S, U, W
  • Lead-free solder specification (CE compliant)

FLAB SeriesCE

Our finely tuned creep compensation enables shorter development times for high-precision transducers, making it easier to achieve superior performance with strain gauge-based designs.
The FLAB series supports temperature compensation for materials with thermal expansion coefficients of 11, 17, and 23 ppm/℃. It also allows accurate strain measurement as a direct replacement for conventional creep codes C2, C4, C6, and C8.

FLAB-ALL

 

Type Single-element
Sensing Element Material Cu-Ni Alloy
Gauge Base Material Special Plastic
Gauge Leads Material Silver-Plated Copper Wire
Conductor 1/0.14
Round-Trip Resistance per Meter 2.5Ω
Length Approx. 25mm
Solder Lead-Free Solder
Surface Protection Polyester Film
Creep Code

A, C, E, G, I, K, M, O, Q, S, U, W
Measurement Target Materials 11: Mild Steel
17: Stainless Steel
23: Aluminum
Operating Temperature Range -30 to +150℃
Temperature Compensation Range +10 to +100℃
Recommended Allowable Current 30 mA or less (for metallic measurement target materials)
Strain Limit*1 5%（50000με） 
Fatigue Life*2 1 × 106 cycles

*1 Strain limit is based on results at room temperature
*2 Fatigue life is based on results at room temperature with a strain level of ±1500 με (15 Hz)

 

  • Single-element

     単軸

    Gauge pattern Type Gauge length
    (mm)    		 Gauge width
    (mm)    		 Backing length
    (mm)    		 Backing width
    (mm)    		 Resistance
    (Ω)
    FLAB-2-350-A FLAB-2-350-A-11
    FLAB-2-350-A-17
    FLAB-2-350-A-23    		 2 2.9 6 4.5 350
    FLAB-3-350-A-11
    FLAB-3-350-A-17
    FLAB-3-350-A-23    		 3 2 7 3.8 350
    FLAB-6-350-A-11
    FLAB-6-350-A-17
    FLAB-6-350-A-23    		 6 2.6 10.6 4.5 350

Creep Compensation

Stable and high-precision creep characteristics are essential for strain gauge-type transducers. Generally, creep compensation is achieved by offsetting the creep of the elastic body (positive) and the creep of the strain gauge (negative). Our product allows for high-precision creep compensation by finely categorizing the turntab dimensions and identifying them with a creep code.

Gauge creep Large    →    Small 
Creep code A > C > E > G > I > K > M > O > Q > S > U > W 

Features

  • Uniaxial strain gauges for transducers with creep codes
  • Gauge lengths: 2 mm, 3 mm, and 6 mm
  • Gauge resistance: 350 Ω
  • 12 creep code patterns available (A, C, E, G, I, K, M, O, Q, S, U, W)
  • Lead-free solder specification (CE compliant)

More Information

Product