Strain Gages

KFV is a foil strain gage that enables stable strain measurement under high-pressure hydrogen gas environments.

The surface of the KFWB series foil strain gage is covered with a special waterproof resin. The waterproof structure enables these gages to serve for outdoor or underwater measurement merely by being bonded to measuring objects. (The insulation resistance shows virtually no deterioration even after 100 hours of use under an underwater pressure of approximately 10 MPa.) In addition, the covering resin is flexible enough to enable easy bonding to curved surfaces.

The KFWS series foil strain gages are small-sized waterproof gages suitable for outdoor or underwater strain measurement where gage bonding space is limited. The waterproof resin is as thin as 1.3 mm, making them flexible enough to be bonded to a curved surface of 10 mm diameter.

The metal base enables easy mounting with a compact spot welder.

Encapsulated gage is hermetically sealed. They consist of a sensing part and a cable to transmit output signals from the sensing part.

Encapsulated gage is hermetically sealed. They consist of a sensing part and a cable to transmit output signals from the sensing part.

Encapsulated strain gages are hermetically sealed. They consist of a sensing part and a cable to transmit output signals from the sensing part.

Encapsulated gage is hermetically sealed. They consist of a sensing part and a cable to transmit output signals from the sensing part.

Encapsulated gage is hermetically sealed. They consist of a sensing part and a cable to transmit output signals from the sensing part.

Encapsulated gage is hermetically sealed. They consist of a sensing part and a cable to transmit output signals from the sensing part.

The KM series gages are designed to be embedded in mortar or concrete for the purpose of measuring the internal stress. To ensure better adhesion to mortar or the like, the KM series gages feature a specially treated surface. They also provide suitable waterproofness and elastic modulus for the intended purpose.

The KMC series gages are designed to measure self-shrinkage and self-stress of cemented materials. They enable measurement of the self-shrinkage and high-fluidity concrete immediately after placing. They are also used effectively to check for cracks of cemented materials. Usually, a T-type thermocouple is installed near the gage, while the KMC series gages of H4 type do not require such the installation since they are equipped with a built-in thermocouple.

These sensors are embedded in resin to measure hardening shrinkage and internal strain of the resin.

The KSNB series gages use an N-type silicon as the resistive element to control the resistance temperature coefficient of the material according to the linear expansion coefficient of the measuring object. Temperature Coefficient of Gage Factor: 　　Approx. -0.3%/℃ (Reference value)

The KSPB series gages are stable-performance semiconductor strain gages usable for general stress measurement and transducers. The F2 type has a half-bridge formed with a 2-element structure (Positive and Negative), for self-temperature compensation and is suitable for strain measurement of steel products.

The KSPH series gages have high resistance, thereby making high excitation voltage applicable to obtain high output voltage.

The KSPLB gage features a superior linearity of resistance change against strain in a comparatively wide range, thereby making it suitable as a sensing element of transducers.

Bonded to the cracked part of a structure or material (or a part of such material where a crack is predicted to develop), the KV series gages measure the developing length and velocity of the crack. Different from usual strain gages, the grids of the KV series gages are cut along with crack development, resulting in resistance change.