TML strain gauge series
F series
The strain gauges in this series from TML are suitable for all standard applications. They are compliant with the RoHS 2 Directive 2011/65/EU and are supplied with CE labelling. As the GOBLET series, they are available in addition to the conventional strain gauges of the F series. The back is colour-coded to identify the material for intrinsic temperature compensation.
WF series
The waterproof strain gauges of the WF series have a pre-installed vinyl lead wire and a complete coating of epoxy resin. The coating is transparent and flexible and ensures easy installation of the strain gauge.
QF series
The strain gauges in this series are foil strain gauges with a polyimide resin carrier. Strain gauges for measuring stress concentration or torque are available in this series in addition to the strain gauges for general applications. The GOBLET variants of the QF series are compliant with the RoHS 2 Directive 2011/65/EU and are supplied with CE labelling. Although lead-free solder is used in the GOBLET strain gauges, they perform better than conventional strain gauges due to the use of a unique, special measuring grid.
ZF series
These strain gauges are designed for measurements at high temperatures up to 300℃. They have a specially developed Ni-Cr alloy foil for the grid and a polyimide resin-coated back.
EF series
These strain gauges have a very small grid pattern that is ideal for measuring printed circuit boards and surface-mounted devices. The backing material of the strain gauges is made of polyimide resin. The maximum operating temperature is +300℃ for strain gauges with one measuring grid and +200℃ for measuring devices with two and three measuring grids. The lowest operating temperature is -196℃ for all EF strain gauges.
CF series
The CF series strain gauges for cryogenic temperatures use a special plastic for the back and a special alloy for the measuring grid. They enable stable measurement from normal temperature to the cryogenic temperature range. The temperature compensation range is an approximate range.
CEF series
The high and low temperature strain gauges in the CEF series use polyimide resin as the carrier material and a special alloy for the element. They have a wide operating temperature range from -269 to +200°C.
UBF series
The UBF series are strain gauges that have been developed for measuring composite materials. They are equipped with a special, specially developed grid pattern to reduce the stiffening effect of the strain gauges. By developing the strain gauge base with better compliance, the number of repetitions in temperature cycling tests and the creep properties have been significantly improved compared to conventional strain gauges (comparison by Tokyo Measuring Instruments Laboratory). Specifications for lead-free solder (-F) are also available as an option.
BF Series
The BF series composite strain gauges are designed for measurement on composite materials and are equipped with a special proprietary grid pattern to reduce the stiffening effect of the strain gauges. Models are available for materials with thermal expansion coefficients of 3 × 10-6/℃, 5 × 10-6/℃、8 × 10-6/℃, enabling use on ceramics, carbon, composites, etc.
GF series
These strain gauges are suitable for measuring materials such as plastics, which have a lower modulus of elasticity compared to metals. The specially developed grid pattern reduces the stiffening effect of the strain gauge on the test specimen. This series is available with self-temperature compensation for materials with a coefficient of thermal expansion of 50 or 70 ×10-6 strain/℃.
LF series
The LF series strain gauges for wood and plaster are foil measuring strips with a special plastic backing material. The grid pattern is suitable for measuring materials with a low modulus of elasticity and reduces the stiffening effect of the strain gauge on the test specimen. The strain gauges are themselves temperature-compensated for 11×10-6/℃ materials.
PFLW series / PLW series
These strain gauges have a thin metal backing and are suitable for long-term measurements on wood. Thanks to the metal, the strain gauge is not affected by the moisture contained in the wood. The strain gauges are installed using PS adhesive.
FLM series / WFLM series
These strain gauges have thin stainless steel backs that prevent the ingress of moisture. This construction is designed for successful strain measurement on concrete surfaces. The WFLM strain gauges also have a moisture-repellent coating and an integrated connecting wire that protects the stainless steel backing. It is intended for long-term measurements or measurements on concrete curing under water.
AW series
These strain gauges have strain measuring elements that are fully encapsulated in corrosion-resistant metal tubes (except AW-6). They are suitable for use in various environments, including liquids or gases. They are installed using a special spot welder (W-50R/W-50RB).
AWM-8
The AWM can be used up to a temperature of 300℃ for both static and dynamic measurements. The carrier material is available in Inconel 600 or SUS304 and should be selected according to the material of the test specimen.
AWMD-5, AWMD-8 (only for dynamic measurement: -196 to +800℃)
The AWMD can be used up to 800°C and is intended for dynamic measurements. The high-pass filter is a standard accessory. The high-pass filter suppresses unnecessary direct current and low-frequency influences (thermal power, drift, etc.). A dynamic strain gauge with DC power supply such as the DC-96A/DC-97A, an intelligent strain recorder such as the DC-204R or a TMR-200 series multi-recorder should be used for the measurement.
AWH-4/AWH-8 full bridge
The carrier material is available in Inconel 600 or SUS304, which should be selected according to the specimen material. Although it has a half-bridge construction of active and dummy gauges, the measurement is carried out using the full-bridge method using the temperature compensation board supplied. The maximum operating temperature is 600°C for static measurement and 650°C for dynamic measurement.
P series
The strain gauges of the P series are strain gauges made of wire with a polyester resin carrier. They are mainly used for measuring surface strains on concrete, mortar or stone.
PL series
These are foil strain gauges with a polyester resin carrier material that is identical to that of the P series. They are mainly suitable for strain measurement on concrete or mortar.
PMF series
PMF series mould strain gauges are small strain gauges that are embedded in concrete or mortar, e.g. for use in load tests. They can also be embedded in smaller test objects. The carrier material consists of special engineering plastics that ensure water resistance. The temperature-integrated model enables both strain and temperature measurement.
PMFL series
These moulded strain gauges can be embedded in asphalt, e.g. for load tests with roller compaction. A special technical plastic is used as the carrier material, which is characterised by its resistance to water and heat. The strain gauges can withstand high temperatures of up to 200°C during asphalt paving and are temperature-compensated.
FAC series
The FAC series crack detectors are used to measure the length and propagation speed of cracks that occur as a result of metal fatigue in machines, ships, aeroplanes and automobiles. A strain gauge is attached in advance to the locations where cracks have occurred or are predicted to occur. As a crack progresses, the measurement grid lines separate one after the other and the output value changes. Use together with the special adapter CGA-120B.
SF series
These DM are designed for measuring the stress in any direction of the test specimens in the plane stress field. The measuring devices are sensitive not only in this axial direction, but also in the transverse direction, whereby the sensitivity ratio of the transverse direction to the axial directions is equal to the Poisson's ratio of the specimen material. The measuring devices are also insensitive to shear strain. Accordingly, the output of the gauges is proportional to the stress in the axial direction. The gauges are available in three types, depending on the Poisson's ratio of the sample material.
BTM series
These strain gauges are used to measure the tensile stress of bolts. They are simply inserted into the pre-drilled hole in the screw using exclusive adhesives. This method is recommended when an ordinary strain gauge cannot be attached to the surface of the bolt. Accurate tension measurement is possible by calibrating the bolt after installing the strain gauges.
YEF series
These strain gauges are suitable for measuring large strains of up to 10 to 15 %. They also withstand repeated strain in the elastic range (at strain level ±1500 × 10-6 strain), like ordinary strain gauges. However, they are not suitable for measuring repeated strains over a wide range. They are also suitable for strain measurements that are only carried out a few days after the measuring strip has been applied.
YHF series
These measuring devices have been developed for measuring very large strains of up to 30 to 40 %. They are not suitable for measuring repeated strains in the elastic range or in the large range. They are also suitable for strain measurements that are only carried out a few days after the measuring strip has been applied.
YF series
These strain gauges are suitable for measuring large strains of up to 15 to 20 %. They are not suitable for measuring repeated strains in the elastic range. They are also suitable for strain measurements that are only carried out a few days after the measuring strip has been applied.
TF series
These measuring devices are glued to the sample surface like normal strain gauges and measure the surface temperature. In combination with the special adapter (TGA), the actual temperature can be measured with these strain gauges.
