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【New Product】Low-capacity shaft type torque transducer TMRS launched

  • New Product

2024.06.26

Low-capacity shaft type torque transducer adopting optical transmission newly released.

MinebeMitsumi is pleased to announce TMRS series which is new torque transducers with optical transmission.
TMRS with an industry-leading fast response (25,000rpm) and high precision is one more choice for low-capacity applications.

Optical transmission little affected by disturbances and much more reliable measurements achievable.

Conventional rotary torque transducers have been of non-contact signal transmission type using electromagnetic induction and slip ring. We have come up with the TMRS shaft type torque transducer, adopting optical transmission, to broaden our product lineup.
Our engineering staff have improved the processing accuracy and reviewed the strain gauge setup and control technology. Compared to existing models, the TMRS has achieved some outstanding features; low capacity, high accuracy, high rotation and fast response.

Optimum strain gauge  setup position, researched and developed in-house

Optimum strain gauge  setup position, researched and developed in-house
Optimum strain gauge  setup position, researched and developed in-house

High precision, high durability, high adaptability

■High precision


Sensing even momentary torque fluctuations with 6-kHz response performance.
"Responsiveness" is crucially important in measurement.
This is a key factor, among others, in applications and processes with rapid torque fluctuations.
Thanks to its innovative responsiveness (6 kHz), the TMRS can accurately detect instantaneous torque fluctuations and make data available in real time. This advantage makes for accurate characteristic evaluation of multipole motors, for instance.

High-speed response at the 6-kHz analog bandwidth

Sensors with slow response time ...

Not sensitive for correct measure of
instantaneous torque fluctuations.

Sensors with slow response time ...

Sensors with quick response time ...

Very sensitive for correct measure of
instantaneous torque fluctuations.

Sensors with quick response time ...

What’s more, the brainchild comes with higher rpm, better zero-point stability and less zero shift by rotation.
In measuring torques, it is very important to accurately maintain zero torque even during high-speed rotation.
Thanks to its precise shaft machining, the TMRS provides for fast spinning as high as 25,000 rpm, yet its zero-point stability is great and its zero shift by rotation is minimized.

"Auto/Zero" function for zero-point correction
The "Auto/Zero" function employs an external ZERO signal to compensate for an output deviation at no load depending on installation conditions.

ZERO signal ZERO signal

ZERO signal

A/Z ON: Pulse signal input to turn on A/Z.
A/Z OFF: Pulse signal input to turn off A/Z.

ZERO signal

Specific cable (RC041-*M) [sold separately] specifications

Specific cable (RC041-*M) [sold separately] specifications

Pin arrangement & wiring for specific cable (RC041-*M)
[sold separately]

Pin arrangement & wiring for specific cable (RC041-*M) [sold separately]
    

■High durability


Permissible overload is as high as 500%F.S. of the rated capacity.
Torque transducers must be able to handle unexpected spikes in torque that would occur at the start and stop of a machine. The TMRS is robustly structured to withstand impact torques 5 times higher than the rated capacity. Even if a torque exceeding the rated capacity is temporarily generated, the torque transducer is never damaged and the measurement accuracy can be maintained.

Safe overload 500%

■High adaptability


The compact design helps to fit in small spaces of industrial equipment more flexibly.
Compared to conventional models, the smaller torque transducer is easy to mount into systems and test equipment. In a nutshell, the device is also suitable for use in limited spaces.

Input/output connector receptacle Input/output connector receptacle Input/output connector receptacle Input/output connector receptacle
TMRS series

The small device can fit even in narrow shaft-to-shaft spaces.

small size small size
TMRS applications

The device can be installed at any angles, either horizontally or vertically. In a variety of applications, it helps to accurately grasp

Motor testing machine
Motor testing machine
Rotational load measurement of sheet feed and wind-up rollers
Rotational load measurement of sheet feed and wind-up rollers
Rotational load measurement of gears
Rotational load measurement of gears
Torsion tester
Torsion tester

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