Ultra-Precise Digital

Choose a Product Category
Find Product

An ultra-precise torque transducer provides the highly accurate torque measurements needed to ensure operational safety, quality and accurate operation of a drive. Standard torquemeters are susceptible to error and failure due to peak clipping from quickly changing values. An ultra-precise torque sensor from S. Himmelstein and Company eliminates these concerns with innovative engineering, high-quality construction and the highest overrange capabilities in the industry.

We offer an ultra-precise torquemeter selection with overrange capabilities from 200% to 1,000%, as well as a dual-range ultra-precise torque transducer suitable for applications where the peak to average torque ratio is high. With an accurate digital torque transducer, you gain the benefits of easy-to-use digital readouts as well as the precision of analog measurement.

Select an accurate torque transducer from the list below to learn more:

When you buy an ultra-precise torquemeter from S. Himmelstein and Company, you're getting an instrument on which you can rely. NIST-traceable calibration in both CW and CCW directions, coupled with precise temperature compensation and rigorous shunt calibration, ensure exceptional accuracy and reliability.

Building an Accurate Torque Transducer

Rotary torque is measured by embedding four strain gages in a shaft. At rest, two will be in compression and two in tension. Strain gages respond to changing torque with subtle shifts in resistance. When in a Wheatstone bridge arrangement, sophisticated signal-conditioning electronics convert these resistance changes to torque values.

Strain gage performance depends on excitation voltage and is affected by temperature. Bi-polar rotor shunt calibration verifies CW and CCW calibration of the entire data chain while a signal conditioner delivers high-stability excitation. Applying precisely controlled temperature compensation removes the effect of hot environments and motor-generated heat. Last, hardening against EMI protects against interference from adjustable speed drives.

No Peak Clipping

When a torquemeter is used for testing and measurement, values can change quickly and swing widely. If the transducer can't handle these fluctuations, there's a risk of peak clipping, which leads to measurement inaccuracy. An ultra-precise torque sensor from S. Himmelstein and Company won't have this problem because ours incorporate the highest-overrange capability of any torque measurement instrument.

Exceptional Design, Construction and Performance

No corners were cut when we set out to engineer our most-accurate digital torque transducer family. The 48800V, 49800V, 59800V and dual-range 79800V ultra-precise torque transducers incorporate all the features you'd expect in a precision measurement instrument.

Temperature compensation over a range of 75-175°F delivers 0.0006% performance. EMI hardening and sophisticated signal-conditioning electronics ensure stability in readings. Accredited and NIST traceable CW and CCW calibration verify combined nonlinearity and hysteresis below 0.02% and 48-hour drift is below 0.02%.

The result of all this attention to detail? The standard-grade Code N ultra-precise torque sensor achieves a combined error of less than 0.04% of full scale. At under 0.02% combined error, the enhanced Code C grade performs to an even higher standard.

Additional Features of Our Ultra-Precise Torquemeters

The keyed shaft simplifies in-line installation. Digital and analog torque-value outputs are provided, with speed and power optionally available in Code Z grade. Link to a PC or other data-acquisition device through RS232 or RS422/485. Models are available with up to 1,000% overload capacity and handling up to 375,000 lbf-in.

Torque Measurement Specialists

Precision is essential when measuring torque to verify equipment performance and only the most-accurate digital torque transducer is suitable for safety-critical laboratory or bench testing.

S. Himmelstein and Company has six decades of torque measurement experience. At our facility in Hoffman Estates, Illinois we build carefully engineered instruments and calibrate them in our ISO 17025-accredited laboratory. Once they’re in the field, we continue to stand behind our products, delivering exceptional after-sales and calibration services.

We believe our torque measurement instruments provide an unmatched combination of price and performance, but don't take our word for it. Contact us with questions and we'll be happy to discuss what makes our transducers special.