Series DR

DR Series Force Transducers | Force Sensors
– For Easy Compensation of Inertial Forces

Kraftaufnehmer Serie DR - Optimiert für dynamische Zug- und Druckkräfte

Patented Force Transducers with Time-Proven GTM Precision for Dynamic Force Measurement from 1.25 kN to 2.5 MN

The patented force/acceleration transducers of the DR series are equipped with two integrated MEMS accelerometers with different sensitivity characteristics. This allows easy and effective determination of any resulting inertial forces occurring in the force measuring set-up or the test bench set-up during dynamic measurements. The innovative solution also eliminates the need for one or more additional external accelerometers. Which is a major advantage for the customer. 

Based on the shear stress measuring principle the load cells of the DR series also feature very high stiffness and a high natural frequency to enable broad dynamic measuring range for industrial applications – the perfect high-precision solution with integrated MEMS accelerometers. Their very broad sensitivity characteristic spectrum likewise makes them suitable for a broad range of dynamic test bench applications.

The robust design and low deformation of the force transducers of the DR series make them ideal for dynamic test benches of materials and components in the automotive, aviation, aerospace and energy sectors.

+ Key Facts

  • Optimised for dynamic compression and tensile forces
  • Integrated MEMS accelerometers
  • Nominal force range: 1.25 kN to 2.5 MN
  • Accuracy class: 0.03 - 0.06
  • Fatigue endurance limit: >100 million load cycles
  • Mounting: threaded or flange

+ Advantages

  • Flexibly configurable sensor variants 
  • Innovative & future-proof 
  • Precise and reliable measurements
  • The perfect overall solution for dynamic applications
  • Investment security due to long service life
  • Very robust & durable

Options

  • Mechanical connection as flange or threaded version depending on nominal load
  • Mechanical plug protection 
  • Second axial measuring circuit for redundancy
  • Version without MEMS accelerometers
  • Fixed connector sockets or fixed cable in various lengths on the sensor
  • In case of fixed cable on load cell: different connector types (e.g. D-Sub 9/15, MS, M12) or free ends
General data
Nominal force range 1,25 to 2500 [kN]
Linearity deviation 0,03 - 0,08 [%]
Hysteresis 0,02 - 0,08 [%]
TKC rated value 0,015 [%/10K]
TK0 zero signal 0,015 [%/10K]
Type of construction Flange, central thread

 

Electrical data
Nominal characteristic value 2 or 1 [mV/V]; depending on nominal force
Bridge resistance 280-360 [Ohm]; depending on nominal force Ohm
Zero signal tolerance 1 [%]
Operating voltage range 0,5-12 [VDC]

 

Mechanical data
Fatigue strength Amplitude ≤ 100% Fnom
Maximum overload 230 [%]
Static breaking load >400 [%]
Fatigue strength / cycles Continuous vibration proof >108
Sensor body material stainless steel
Electrical connection

1. fixed connector socket on the sensor housing

2. fixed cable with open ends or selectable connectors

 

Integrated accelerometers (MEMS)
2 types with different characteristic values Yes
Voltage supply 5 +/- 0,25 [VDC]
Resonant frequency Type I: 5,5
Type II: 21 for thread variants ; 22 for flange variants
Nominal acceleration for thread type I 19 [g]
Nominal acceleration thread type II 50 [g]
Nominal acceleration flange type I 6 [g]
Nominal acceleration flange type II 37 [g]

 

Environmental conditions
Operating temperature range -30 - +85 [°C]
Degree of protection IP67

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