Bearingless Torque Transducer with completely separate rotor and stator
The Datum Electronics Series RS425 bearingless torque transducer has been designed to fit easily in line with any drive-train or test rig, using either a spline or key-way shaft. We are able to modify the ends of the transducer to best suit your requirements, and can even design bespoke ends to fit. This type of transducer has many advantages over other torque systems including zero bearing friction, high speed and high torque applications.
The Series 425 Torque Transducers can be adapted to replace existing drive shafts on test rigs and in drive lines, this saves the time and cost of designing in special couplings and intermediate shafts to accommodate conventional transducers. By measuring torque on longer drive shaft you prove the accuracy of the measurement and its tolerance to offset loads. Using a direct replacement with a lightweight rotor the dynamics of the driveline are maintained.
The RS425 rotary bearingless torque transducer utilises a strain gauged shaft for accurate and reliable torque measurement and a set of rotating on shaft conditioning electronics, the digital signals are transmitted to the non-rotating part of the system or stator providing a reliable and highly accurate torque measurement solution. The rotor is continuously powered enabling static torque measurement to be made. Not only does the RS425 Series offer great technical advantages but the range of torque sensors are competitively priced.
RS425 Rotary Torque Transducer Specifications
| RS425 TORQUE SENSORS |
Size 1 |
Size 2 |
Size 3 |
Size 4 |
| TORQUE RANGE |
0-100Nm |
0-500Nm |
0-2,000Nm |
0-10,000Nm |
| ACCURACY CLASS |
0.1%FSD |
0.1%FSD |
0.1%FSD |
0.1%FSD |
MECHANICAL
CONNECTION |
Keyway or Spline Shaft |
SIGNAL OUTPUTS
OPTIONAL OUTPUTS WITH DUI |
RS485 as standard
DIGITAL: USB, Ethernet, RS485/232 and USB memory logging
ANALOGUE: 3 Channels of Torque, Speed and Power as 0-10V/4-20mA |
| TRANSMISSION |
Strain gauge signal, digital on-shaft
with inductive loop |
|
MAX SPEED
(RPM)
|
22,000rpm |
20,000rpm |
16,000rpm |
10,000rpm |
| OUTPUT DATA |
1-4000sps |
*In many cases higher RPM ratings can be attained - please call our engineering team to discuss your applications.
The RS425 Bearingless Torque Sensor Range
The RS425 series torque transducer is not limited by bearings; therefore it can be used at higher speeds and places with no bearing loads on to the shaft. The stator needs to be mounted in relation to the shaft within an operating envelope of +/- 3 to 5mm. The standard range can measure torque ranges from 0Nm up to 10kNm, the same modular elements have been applied to bespoke torque transducers for use down as low as 1Nm and up to 500kNm.
Using our new generation of electronics as found in our industry standard M425 Torque transducer, the RS425 gives customers the ability to choose the sample rate that they need from 1 up to 4000sps, with higher resolution using up to 24bit technology.
The Competitive Edge
The Series RS425 bearingless torque transducer transmits calibrated digital data as this is a cleaner and more defined method of transmitting data. The on-shaft signal from the strain gauge is converted to a digital signal and amplified on a shaft. It is this signal that is taken off the shaft and processed by either with our DUI; Datum Universal Interface, or with our free of charge GUI software, providing the end user with clean and definitive data transmission.
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