Name: KYOWA Strain Gages KFGS, SKS cảm biến đo ứng suất biến dạng vật liệu
Brand: KYOWA
SKU: KFGS
Availability: PreOrder

KYOWA ELECTRONIC INSTRUMENTS -Japan

Strain Gages

A strain gage detects a minute dimensional change (strain) as an electric signal. By measuring strain with the gage bonded to a material or structure, the strength or safety will be known. Thus, the strain gage is used in various industries including machinery, automobile, electric, civil engineering, medical, and food. The strain gage is also adopted as a sensing element of force, pressure, acceleration, vibration, displacement, and torque transducers used for various purposes including measurement and control of production lines.

Kyowa produced the first Japanese-made strain gages in 1951, and based on the abundant experience and technology accumulated for these years, we manufacture a variety of high-performance, environmentally friendly strain gages.

Principles of Strain Gages If external tensile force or compressive force increases or decreases, the resistance proportionally increases or decreases. Suppose that original resistance R changes by AR because of strain &: the following equation is set up. Types of Strain Gages Types of strain gages are classified into foil strain gages, wire strain gages, and semiconductor strain gages, etc.

Structure of a Strain Gage The foil strain gage has metal foil on the electric insulator of the thin resin, and gage leads attached The strain gage is bonded to the measuring object with a dedicated adhesive. Strain occurring on the measuring site is transferred to the strain sensing element via adhesive and the resin base. For accurate measurement, the strain gage and adhesive should be compatible with the measuring material and operating conditions such as temperature, etc. [embedyt] https://www.youtube.com/watch?v=0gGK7F93X0s[/embedyt] KYOWA Strain gage bonding installation procedure

Strain-gage Measurement Examples

KYOWA KFGS General-purpose Foil Strain Gages New strain gages with the world highest level performance.

Materials Resistive element	CuNi alloy foil
Materials Base	Polyimide
Operating temperature in combination with major adhesives after curing (°C)	CC-33A: -196 to 120ºC CC-35: -10 to 120ºC CC-36: -30 to 100ºC EP-340: -55 to 150ºC PC-600: -196 to 150ºC
Operating temperature in combination with major leadwire cables (°C)	Polyester-coated copper wire: -196 to 150ºC Vinyl-coated flat cable (L-6, L-7): -10 to 80ºC Mid-temperature cable (L-11, L-12): -100 to 150ºC
Self-temperature-compensation (°C)	10 to 100ºC
Applicable linear expansion coefficients (×10-6/℃)	5, 11, 16, 23, 27
Strain limits at normal temp. (approx. %)	5.0
Fatigue lives at normal temp. (times)	1.2x107 (±1500μm/m)

Relative images

Pic.: KYOWA strain gauge KFGS series at Semiki's warehouse

When ordering, specify the model of the strain gage and the code of the lead-wire cable with a space in between. E.g. KFGS-5-120-C1-11 With 2 polyester-coated copper wires 15 cm long →KFGS-5-120-C1-11 N15C2 KFGS-5-120-C1-11 With a vinyl-coated ﬂat 2-wire cable 5 m long →KFGS-5-120-C1-11 L5M2R KFGS-5-120-D17-11 With a vinyl-coated ﬂat 3-wire cable 5 m long →KFGS-5-120-D17-11 L5M3S KFGS-5-120-C1-11 With a mid-temperature 3-wire cable 5 m long →KFGS-5-120-C1-11 R5M3 KFGS-5-120-D17-11 With a mid-temperature 2-wire cable 5 m long →KFGS-5-120-D17-11 R5M2 If no lead-wire cable code is suffixed, the gage is delivered with gage leads only. (Silver-covered copper wires 25 mm long)

[embedyt] https://www.youtube.com/watch?v=C1WX15orqq0[/embedyt] How to bond KYOWA KFRS miniature strain gages on a PCB

KYOWA KC Wire Strain Gages

Featuring a longer gage length, the KC series gages are wire strain gages suitable for mean strain measurement of concrete under test. Usually, a model with the gage length over 3 times longer than the maximum diameter of the aggregate (gravel, sand, etc.) is selected for the purpose.

When ordering, suffix the lead-wire cable code to the model number with a space in between. E.g. For the gage with a vinyl-coated flat 2-wire cable 5 m long → KC-120-120-A1-11 L5M2R If no lead-wire cable code is suffixed, the gage is delivered with gage leads only. (Silver-covered copper wires 30 mm long)

Pic.: KYOWA Strain gauges type SKS-3032 ( 1000ohm/ 4pcs/box) at Semiki's warehouse Maintenance and calibration : ► We also have calibration certificate attached ( optional ) ► Please re-calibrate after use for a certain period through our purchase store. Local Vietnam : SEMIKI Ins