Miniature Torque Sensors
For over three decades, FUTEK has been a pioneer in sensor miniaturization, leading the development of high-performance micro torque sensors built using advanced strain gauge technology. FUTEK’s miniature torque sensors measure torque in both clockwise and counterclockwise directions and are available in reaction (static) and rotary (dynamic) configurations. With capacities ranging from 0.3 oz-in to 500 lb-in, these precision devices are designed for applications requiring high accuracy, repeatability, and long-term reliability.
Micro Slip-Ring Shaft-to-Shaft Rotary Torque Sensor
The TRS150 rotary torque sensor is a state-of-the-art miniature sensor designed for applications where torque measurements were previously constrained by size. With a 0.7in × 0.7in (17mm × 17mm) cross-section and 2.01in (53mm) shaft length, the TRS150 is the smallest rotary torque sensor on the market.
| Specifications | TRS150 | ||
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| Capacity | 4.4 in-lb, 8.9 in-lb and 17.7 in-lb [0.5 N.m, 1 N.m and 2 N.m] |
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| Weight | 1 oz [28.3 g] | ||
| Cross-Section | 0.7in × 0.7in [17mm × 17mm] | ||
| Length (shaft) | 2.01in [53mm] | ||
| Shaft Diameter | 0.19 in [5mm] for 0.5 N·m and 1 N.m 0.23 in [6mm] for 2 N·m |
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| Safe Overload | 150% of RO | ||
| RPM | 300 RPM max | ||
| Connection Type | 4 Position Micro Receptacle (CC19) | ||
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Reaction Torque Sensor
The QTA141 micro reaction torque sensor provides high-precision static torque measurement for tightly integrated assemblies. As the smallest torque sensor in FUTEK’s catalog, the QTA141 is engineered to match the motor or gearhead assembly diameter without increasing system footprint, enabling precise torque measurement within dense arrays while maximizing space utilization. Along with the QTA143 variant, it delivers reliable clockwise and counterclockwise torque feedback in space-constrained applications.
| Specifications | QTA141 | QTA143 | |
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| Capacity | 8.9 in-lb to 17.7 in-lb [1 N.m to 2 N.m] | 6.63 in-lb [0.75 N.m] | |
| Weight | 0.02 lb [9.1 g] | 0.02 lb [9.1 g] | |
| Height | 0.394 in [10.0 mm] | 0.394 in [10.0 mm] | |
| Outer Diameter | Ø 0.866 in [22.000 mm] | 1.02 in [26 mm] - side | |
| Inner Diameter | Ø 0.39 in [Ø 10 mm] | Ø 0.57 in [Ø 14.5 mm] | |
| Safe Overload | 150% of RO | 200% of RO | |
| Connection Type | #34 AWG, 4 conductor, braided shielded cable 0.5 ft [0.15 m] long | #30 AWG, 7 Conductor, Braided Shielded Red Polyester Cable, 24 in [610 mm] Long | |
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Miniature Electrical Torque ScrewDriver
FUTEK’s TAT200 Miniature Electrical Torque Screw Driver offers a unique solution for torque auditing applications. Featuring an anodized aluminum housing and a lightweight 3oz design, the TAT200 delivers excellent accuracy.
| Specifications | TAT200 | ||
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| Capacity | 50 in-oz to 100 in-oz [0.35 N.m to 0.71 N.m] | ||
| Weight | 3 oz (w/o adapter) | ||
| Height | 2.75 in [69.9 mm] | ||
| Outer Diameter | Ø 0.61 in [15.4 mm] | ||
| Safe Overload | 150% of RO | ||
| Connection Type | #28 AWG, 4 conductor, braided shielded PVC cable 10 ft [3 m] long | ||
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Flange-to-Flange Thru Hole Reaction Torque Sensor
The TFF Series is a family of flange-to-flange reaction torque sensors designed for high-precision torque auditing and static torque measurement. Built using advanced metal foil strain gauge technology, these sensors deliver exceptional accuracy, repeatability, and long-term stability. Available in multiple heights, outer diameters (OD), inner diameters (ID), and capacities, the TFF family is suited for both test and measurement environments as well as OEM integrations and high-volume applications.
| Specifications | TFF325 | TFF400 | TFF500 |
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| Capacity | 20 in-oz to 100 in-lb [0.14 N.m to 11.3 N.m] | 5 in-oz to 500 in-lb [0.04 N.m to 56 N.m] | 100 in-lb [11.3 N.m] |
| Weight | 2.3 oz [65.2 g] | 9 oz [250 g] | 5.6 oz [158.8 g] |
| Height | 2.00 in [50.80 mm] | 2.00 in [50.80 mm] | 1.25 in [31.7 mm] |
| Outer Diameter | Ø 1.20 in [Ø 30.5 mm] | Ø 1.98 in [Ø 50.29 mm] | Ø 2.23 in [Ø 56.6 mm] |
| Inner Diameter | Ø 0.66 in [Ø 16.76 mm] | 0.50-0.66 in [12.8-16.8 mm] | Ø 0.75 in [Ø 19.0 mm] |
| Safe Overload | 150% of RO | 300% (5 to 1000 in-oz) of RO 150% (100 in-lb to 500 in-lb) of RO |
150% of RO |
| Connection Type | #29 AWG, 4 conductor, spiral Teflon cable 6 in [152.4 mm] long | 4 Pin LEMO® Receptacle | DB9 Male |
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