Highly available, flexible torquemeters

Torquemeters from ATESTEO measure the loads and torque arising in the drivetrain and supply measurement data for test bench control and analysis purposes. The high precision of standardised torquemeters and the flexibility in the design of highly specialised multi-channel torquemeters  are an absolutely essential requirement for high test bench capacity utilisation.

Standard torquemeters  or customized solutions

In addition to the standard testing ranges from 1 Nm to 150 kNm, which are available on short notice, customer-specific torquemeters  solutions are also offered worldwide. The design options for torquemeters  include individual specification of the measurement ranges and the complete redesign of the measurement instrument. This ensures 100% “inline” functionality in highly dynamic and high-load drives.

Innovative torquemeters  from engineers for engineers

New technologies in data transmission and further development of the design guarantee that even future requirements are accounted for, above all with regard to ease of handling in combination with providing highly precise measurement data. The product quality of ATESTEO’s own torquemeters  is ensured by certified calibration equipment.

With our configurator, you can configure our standard torquemeters or request custom ones.

Our DAkkS-certified calibration laboratory also offers this service for third-party products.

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STM-series torque measuring flanges

The torque measuring flanges of the STM-series are extremely compact torquemeters. They extend the ATESTEO product offering with robust and precise measuring systems for a wide range of applications in the manufacturing industry. The torque flange STM-series uses the well-established infrared telemetry for data transmission. The torquemeters are completely EMC-immune in optical data transmission and do not radiate any electromagnetic waves. The measuring body, mounted on a single side, allows higher accuracy when measuring on the output side. The various sizes of these torquemeters each cover an extremely large torque range.

Performance characteristics of the torque measuring flange STM-series:

  • Compact design
  • Measurement range from 5 to 20 Nm (more ranges in preparation)
  • Standard measuring accuracy 0.1%
  • Frequency and voltage output
  • Active temperature compensation
  • Integrated rotational speed measurement as standard
  • High-speed performance up to 20,000 rpm possible
  • Single-side bearings for higher accuracy
  • Flexible rubber couplings or metal below couplings available as options

F-series torque measuring flanges

The torque measuring flanges of the F series are torquemeters that use infrared high-power LEDs to transmit data. They are completely immune to EMC (electromagnetic compatibility) during optical signal transmission and also do not radiate electromagnetic waves. Designed as two-range sensing shafts, these torque measuring flanges greatly shorten your setup times. The various sizes of these torque measuring flanges each cover a very large range of torques.

Performance characteristics:

  • Measurement range from 20 Nm to 150,000 Nm
  • Standard measuring precision 0.05% in the measuring ranges up to 20 kNm
  • Multidimensional temperature detection for optimal compensation
  • Integrated rotational speed measurement as standard
  • High-speed performance up to 30,000 rpm possible
  • Optional two torque ranges
  • Optional high-resolution magnetic rotation measurement system
  • Variation with separate stator electronics is deliverable

Models (F-series)

The torque measuring flanges of the F series are available as model iS with integrated analysis unit or as model eS with detached analysis unit TCU2. We would be pleased to advise you on how you can modernise your existing test benches with our torquemeters.

Torque measuring flange F, model iS

atesteo_torque-measuring-flange-f1-iS

The model iS is a good choice for smaller and mid-range torque values and at operating temperatures of up to 85°C. The stator can be fastened to the electric machine (electric motor) directly to the performance plate or through a foot adapter and a console. You can obtain all F Series rotors of 1000 Nm or greater with a central hole of up to 15 mm. At ATESTEO, you can have it all from one source — from the torque measuring flange and adapter to installation at your premises.

Torque measuring flange F, model eS

atesteo-torque-measuring-flange-f1-es

The external  TCU of the model eS allows an operating temperature of the rotor and stator beyond 85°C. Through integration into the electric machine, this model can also be used in very constricted circumstances. This allows the stator to be positioned very precisely against the rotor even during high vibrations.

Output signals

Because state-of-the-art electronic components are used systematically throughout, ATESTEO is able to make available all prevalent output signals without any additional electronics. The frequency outputs offer dynamics of up to 7 KHz. This makes ATESTEO measurement technology excellently suited for use on highly dynamic engine and motor test benches and test rigs. Where high current values are generated by rapid inverters, the IR data transmission offers maximum interference resistance. All this makes the technology from ATESTEO as effective as it is future-proof.

Frequency (RS422)
RS232
CAN
Analog

Installation sizesatesteo-functional-testing

When running a test programme in which both high and small torques are to be measured, it is advantageous when the test bench does not have to be reconfigured and correspondingly various mass moments of inertia are not to be expected. The torque measuring flanges of the F series exhibit a wide spectrum of rated (nominal) torque values depending on size. The F1iS has a rated torque value of from 50 to 3,000 Nm with a single size. Odd values such as 2,502 Nm can be created without extra cost. Torquemeters with two measuring ranges also help save costs and help to minimise the downtime of the test bench.

Configure your F series torque measuring flange individually according to your requirements. Our configurator also contains detailed product information and additional materials ready to download.

Learn more now …

RT1 series torque measuring flanges

The torque measuring flanges of the RT1 series round off the lower levels of the measuring range offered by ATESTEO. They are ideal for measuring drag torque. The torquemeters are based on tried and tested high-performance infrared LEDs (light-emitting diodes) for data transmission. These LEDs are completely immune to electromagnetic interference during optical signal transmission and do not radiate electromagnetic waves. The various connection options offer flexible adaptation.

Performance characteristics

• Measuring range from 1 Nm to 20 Nm
• Standard measurement accuracy of 0.05% starting at a measurement range of 5 Nm
• Temperature measurement at several points for optimal temperature compensation
• High speed stability (speed strength) of up to 25,000 U/min (revolutions per minute) possible
• Optional: two torque measuring ranges

Installation sizes

The torque measuring flanges of the RT1 series are available with different connections as a flange, with clamping bushing, or with coupling.

atesteo-torque-measuring-flange-rt1-es

RT1eS

atesteo-torque-measuring-flange-rt1es-b

RT1eS-B

atesteo-torque-measuring-flange-rt1es

RT1eS-B RW

T series torque measuring flanges

The torque measuring flanges of the T series have two special features that are optionally available for other torque measuring flange models. One is that the measuring element is made of titanium. This results in a lower mass and mass inertia for highly dynamic measurement tasks. The second feature is that the T series torque measuring flanges have a central borehole on the rotor. This can be used to admit a second shaft or a wiring harness.

Output signals

As with the F series and RT1 series, the torquemeters of the T series torque measuring flanges are based on tried and tested high-performance infrared LEDs (light-emitting diodes) for data transmission. These LEDs are completely immune to electromagnetic interference during optical signal transmission and do not radiate electromagnetic waves.

atesteo-torque-measuring-flange-t-series

Performance characteristics

• Titanium rotor with a central borehole of 50mm
• Measurement range from 20 Nm to 500 Nm
• Standard measurement accuracy of 0.05 %
• Temperature measurement at several points for optimal temperature compensation
• High speed stability (speed strength) of up to 40,000 U/min (revolutions per minute) possible
• Optional: two torque measuring ranges

atesteo-graphic-stainless-steel-titanium

Configure your T series torque measuring flange individually according to your requirements. Our configurator also contains detailed product information and additional materials ready to download.

DF-series torque measuring flanges

The DF series torque measuring flanges feature an innovative measuring element in combination with digital multi-channel telemetry. This enables an extremely wide bandwidth of installation and measurement arrangements. The torquemeter is unique in that it features three genuine strain gauge amplifiers electronics of the rotor. The additional overflow channel transmits measurement values of up to 300% of the nominal torque. The rotor temperature is also signaled. The flange dimensions of the DF series conform to the DIN norm and are compatible with existing systems.

The currently available series of these torque measuring flanges covers measurement ranges of 50 Nm to 10 kNm. Based on the DIN flange dimensions, the product assortment includes variants with torsionaly rigid couplings, two measuring ranges, the inline measurement principle, and high-resolution rotational speed measurement. A completely new development of measuring and transmission electronics goes together with the new flange design. In addition to the range of use, the installation and ease of operation of the premium torque measuring flanges of the DF series were considerably improved through the expanded multi-channeling capacity, the higher data rate, and the additional interfaces. Future applications can thus be very easily integrated into the existing concept with this torque measuring flange.

atesteo-measuring-flange-df-series

Outstanding features:

atesteo-torquemeter-inline-concept
  • DIN flange dimensions combined with a compact design
  • The one-sided and hollow measuring element can, as an option, be positioned on to the drive shaft for assembly purposes (inline concept). Critical operating parameters such as “linkable masses” or limited limiting speeds can thus be deactivated.
  • Owing to the elimination of the stator ring and the broad positioning distance between the rotor and the stator head, the overall installation of the measuring system and the replacement of the individual components is very easy. The evaluation unit necessary for the operation of the measuring system makes all interfaces available for easy and timely processing of the measuring data.
  • The mostly free design of the torque measuring element offers an additional expansion as a two-range measuring flange up to a torque ratio of up to 1:5 without expecting appreciable restrictions of the mechanical properties.
  • Comprehensive diagnostic possibilities: Over Ethernet and CAN, the rotor temperature and overload torsional value, for instance, can be output up to 300% over the nominal (rated) value.

Interfaces:

  • Ethernet (10/100 Mbit)
  • CAN 2.0 (111 bit, up to 1 kHz)
  • Analog output: 0–5 V, 0–10 V, ±5 V, ±10 V
  • Frequency output: 10±5 kHz, 60±20 kHz, 60±30 kHz, 240±120 kHz
  • Optional power output: 4–20 mA
  • Optional magnetic speed sensor

The DF series torquemeters by the numbers:

  • Maximum speeds of up to 25,000 rpm
  • Accuracy class: 0.04% F.S. (full scale)
  • A-D converter: 24 bit
  • D-A for analogue output: 16 bit
  • Total sampling rate: 25 kHz
  • Operating temperature range: 0…85°C
  • Rated gap distance: < 4 mm
  • Limit torque: 300%
  • Customer-specific measuring ranges on request
atesteo-torquemeter-df-series-1

DF1

50–500 Nm

PCD 84

atesteo-torquemeter-df-series-2

DF2

200–1 kNm

PCD 101.5

atesteo-torquemeter-df-series-3

DF3

1–3 kNm

PCD 130

atesteo-torquemeter-df-series-4

DF4

4–5 kNm

PCD 155.5

atesteo-torquemeter-df-series-5

DF5

5–10 kNm

PCD 196

Configure a torque measuring flange now and download a technical data sheet …

Your advantage: The inline concept

atesteo-inline-conceptThis torquemeter is unique in that it features three genuine strain gauge amplifiers in the electronics of the rotor.
The one-sided and hollow measuring element can, as an option, be positioned on the drive shaft (inline concept).

Download DF-Broschure

Customised measurement shafts and torque measuring flanges from 1 Nm to 400 kNm

atesteo-torquemeter-chart

The standardly available measurement shafts for the various measurement ranges are torquemeters that are all similarly built. For easy installation, there are fastening flanges on both ends of the element, which is produced from one piece. The sensor telemetry used is variable and can therefore offer special options in line with the multi-channel ability. In addition, there is a rotational speed sensor with every measuring element.

ATESTEO offers application-specific custom-tailored solutions in addition to standard torque measurement shafts. The sensor telemetry used is variable and can offer special options. Examples of customer solutions may include:

  • Capacity for multiple channels; for example, torque and temperature
  • Stationary shafts — passive and active
  • Sensing shafts made of titanium
  • Various geometric variations for stators and rotors
  • Roters with holes for the shaft
  • Customer-specific measurement ranges

Download

All further information on our innovative testing equipment, including ATESTEO torque measurement sensors, can be found in our current brochures of our products and services.

Download DF-Broschure
Download Innovative Testing Equipment-Broschure

Would you like to configure your torquemeter from ATESTEO and find out more about the technical data of our products?

Configure & download here …