Amplified Strain Gauge Displacement Sensor | AML/SGDA

Highly Accurate with Outputs 4-20mA, 0-5Vdc and 0-10Vdc


Applied Measurements amplified strain gauge displacement sensor AML/SGDA utilises strain gauge technology to provide a linearly proportional industrial output in relation to the movement of a captivated spindle.  Outputs available for the amplified displacement sensor are 4-20mA, 0-5V and 0-10V.

Stroke ranges available are from 0-5mm up to 0-100mm, the strain gauge displacement transducer offers excellent accuracy of better than 0.1% on ranges from 0-5 up to 0-50mm and 0.2% on the 0-100mm versions, along with excellent resolution and long-term stability.

The design principle incorporates a low-noise signal conditioner, avoiding the need for external modules and simplifying the installation and configuration process.

Common applications for Applied Measurements AML/SGDA include Geotechnical Testing, R&D, Aerospace, Civil Engineering and Automotive.

Applied Measurements can supply a wide variety of instrumentation to complement your AML/SGDA amplified strain gauge displacement sensor, such as handheld indicators, digital displays and amplifiers.


  • Stroke Ranges: 0-5mm to 0-100mm
  • 4-20mA, 0-5V and 0-10V Output
  • Environmental Protection: IP54
  • Spring Loaded
  • High Accuracy:
    • <±0.1% (0-5mm to 0-50mm)
    • <±0.2% (0-100mm)
  • Strain Gauge Design for High Accurate Results
  • Compact Size & Rugged Construction
  • Low-Noise Signal Conditioner
  • Long Life – Reliable and Accurate Even After 10 Million Cycles.
  • Wide range of standard analogue and digital equipment available.


Stroke Length: 0-5 0-10 0-25 0-50 0-100 millimetres
Spindle Force: 50-250 50-250 50-250 50-250 90-380 gf
Output Options: 0-5Vdc, 0-10Vdc or 4-20mA
Non-Linearity, Hysteresis, Repeatability
(total error):
<0.10 <0.20 ±% of Rated Output
Operating Temperature Range: -10 to +70 °C
Temperature Effect On Output: <0.010 ±% of Rated Output/°C
Temperature Effect On Zero: <0.010 ±% of Rated Output/°C
Safe Overload: See note 4 below
Excitation: 18-24 Volts DC
Current Consumption: <40 mA
Insulation Resistance: >2000 Megohms
Output Bandwidth: 100 Hz (nominal)
Construction: Stainless Steel/Aluminium
Environmental Protection: IP54
Cable: 2m, 3-core Screened Cable (min bend radius 10mm)
Weight (excluding cable): 135 140 150 200 320 grams
Operational Notes:
1. The outer case must not be distorted when clamping the sensor. A full diameter clamp is advised.
2. The sensor is not recommended for use is hostile environments without additional protection.
3. Special tools are required to remove the plunger tip (anvil) to avoid damage to the spindle.
4. With the plunger tip (anvil) attached this forms a positive overload protection stop

Product Dimensions

Amplified Strain Gauge Displacement Sensor AML/SGDA Outline Drawing
Stroke Range
5mm 145 114 17.4
10mm 151 114 17.4
25mm 181 119 17.4
50mm 259 179 17.4
100mm 392 264 25.4

AML/SGDA Displacement Sensor Mounting Clamps

Single End Clamp Types:
SMC 17
SMC 20
SMC 25

Materials Clamp Bar Anodised Aluminium
Ring & Fixings Stainless Steel

Note: Clamp bar can be machined to suit applications.

Type DIM A Sensor Diameter
SMC-17 110 Ø17.4
SMC-25 115 Ø25.4

Double End Clamp Types:
DMC 17-25
DMC 19-25

Materials Clamp Bar Anodised Aluminium
Ring and Fixings Stainless Steel



AML/SGDAU10-25mm-002-000 (example code) AML/SGDA U10 25mm 2 000
Product Family
Electrical Output
U = 0-5Vdc U
U10 = 0-10Vdc U10
I = 4-20mA I
Stroke Range
0-5mm 5mm
0-10mm 10mm
0-25mm 25mm
0-50mm 50mm
0-100mm 100mm
Cable Length (in metres)
0,2 = 0.2 metres 0.2
002 = 2 metres 2
Specials Code
000 = Standard Product (as per datasheet) 000
Code Details
AML/SGD-DMC17 Double mounting clamp for AML/SGD 0-5mm to 0-50mm ranges
AML/SGD-DMC25 Double mounting clamp for AML/SGD-100mm
AML/SGD-SMC17 Mounting clamp for AML/SGD 0-5mm to 0-50mm ranges
AML/SGD-SMC25 Mounting clamp for AML/SGD-100mm


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