Brushless-Rotary-Square-Drive-Torque-Sensor

Brushless Rotary Square Drive Torque Sensor

 

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Description

The DRFN series of brushless non-contact torque sensors manufactured by ETH Messtechnik in Germany provide accurate torque measurement in continuously rotating applications at speeds up to 12,000rpm and has a square drive type mechanical connection.

The DRFN features integral signal conditioning gives a ±5Vdc analogue signal.  A 360 pulses/revolution angle output is optional on all capacities.

The DRFN brushless square drive torque sensor offers excellent accuracy making it suitable for many manufacturing, assembly and test bench applications.

Suitable for

  • Automotive industry
  • Test benches
  • Assembly applications
  • Pulsed tools

Product Dimensions

DRFN Brushless Square Drive Torque Sensor Outline Drawing

Version without Angle Output

Capacity (Nm)
Square Drive
A
B
C
D
E
F
1, 2, 5, 10, 12, 15, 20
 1⁄4“
62
32
56
16
77
8
20, 30, 50, 63
 3⁄8“
62
24
52
16
82
12
100, 160, 200
 1⁄2“
66
40
57
20
95
16
200, 300, 500
 3⁄4“
66
46
65
23
110
24
1000, 2000
1″
66
52
71
23
127
31
2000, 3000, 4000, 5000
 11⁄2“
86
92
108
46
178
44

Version with Angle Output

Capacity (Nm)
Square Drive
A
B
C
D
E
F
1, 2, 5, 10, 12, 15, 20
 1⁄4“
66
32
51
16
82
9
20, 30, 50, 63
 3⁄8“
66
40
59
20
90
12
100, 160, 200
 1⁄2“
66
40
59
20
97
16
200, 300, 500
 3⁄4“
71
55
74
27.5
117
24
1000, 2000
1″
72
56
73
28
132
30.5
2000, 3000, 4000, 5000
 11⁄2“
86
92
108
46
178
44

All dimensions are in mm.

Features

Features DRFN
• No service needed because of contactless data acquisition
• High noise immunity due to amplified active signal
• High accuracy due to frequency modulation
and strain gage technology
• Single power supply
• Optional angle detection
• Integrated sensor-detection chip
for use with GMV2 analyze

Spesification

Electrical Specifications DRFN
Supply voltage: 12V DC ± 10 %
Current consumption: < 200 mA
Rise time 10-90 %: 1 ms (1 kHz)
Voltage output: 0 to ± 5 V
Internal resistance: 100 Ω
Ripple: < 100 mVss
Nonlinearity: < 0,15 %
Hysteresis: < 0,1 %
Deviation at zero point: ≤ ± 100 mV
Operating temperature: 0 - 60 °C
Compensated temperature range: 5 - 45 °C
Temperature error Zero point: Sensitivity   0,02 % / K 0,01 % / K
Mechanical overload: see table
Internal protection: IP 40 DIN 40050
Connection: 12 pin-connector
Factory certificate for clockwise torque in 25% steps is also supplied. (Other calibrations available on request!)
 
Angle Option (w)
max rev.: up to 3 000 min -1
Output: open-collector
Internal pull up 10 kΩ (5 V level)
External pull up 24 V max
l max: 20 mA
Pulses / rev.: 360
Resolution: 1°
 
Detection of direction of rotation:
2 pulses 90° phase shift
Channel A leading for clockwise rotation of drive end
 

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