Displacement Sensing

We provide a wide range of displacement sensors from MicroStrain® and KYOWATM to measure micro to large relative and/or absolute displacement from a reference point.

Applications:

  • Structure Vibration Testing
  • Crack Measurement
  • Vehicle Body Strength Test
  • Biomechanics Studies
  • Production Process Control
  • Miniature Position Control Elements
  • Linear & Angular Motion Control
  • Dimensional Gauging for Quality Control

Displacement sensor

Featured Products

Displacement Sensors

KYOWATMdisplacement transducers are based on strain gage or potentiometer as sensing element, and receive minimal aging, thereby enabling long-term stable measurement. The displacement transducers are available in rated capacities ranging from 2 mm to 5 metres. KYOWA displacement measurement system is shown in below system overview.

 

 

Clip-type Displacement Transducer

  • Measurement range: 2mm, 5 mm
  • Suitable for measure crack opening displacement of materials, complying with ASTM standard.

Model: DTC-A

Displacement Transducer (Tension & Compression)

  • Measurement range: 30 mm to 200 mm
  • Both Tension & Compression

Model: DTK-A DTT-A DTS-A DTJ-A-200 DT-A

Small-size Displacement Transducer

  • Measurement range: 5 mm to 100 mm
  • Requires small application force of 1.5 N to 4 N.

Model: DTH-A

Dial Gage-equipped Displacement Transducer

  • Measurement range: 10 mm to 50 mm
  • Possible to read displacement directly by scale.

Model: DT-D

Potentiometer-type Displacement Transducer

  • Measurement range: 500 mm to 5,000 mm
  • Measures displacement by converting expansion/contraction of pull-out sensing wire to analogue output signal by potentiometer.

Model: DTPA-A DTP-D-S

Inductance-type Displacement Transducer

  • Measurement range: ±5 mm to ±500 mm
  • Complete shielding against magnetism makes the transducer hard to receive external electric effects.

Model: DLT-AS DLT-BS

Miniature Displacement Sensors

MicroStrain® offers a range of miniature displacement sensors, which are ideal for precise micro-position measurements. The Displacement Variable Reluctance Transducers (DVRTs), include inductive contact, non-contact, slide, and spring-actuated sensors, are available in various stroke lengths — ideal in small spaces. The DVRTs are very robust, capable of operating at temperatures up to 175°C in corrosive medium such as saline, oil, and brake fluid. The near frictionless design enables sensors to operate over millions of cycles without wear or degradation in signal quality.

MicroStrain® DVRTs are used with DEMOD signal conditioners for displacement measurement, monitoring and recording as shown in below system overview.

updated on 3 Nov 2017

Miniature DVRT® Sensors

Compact Linear Displacement Sensor LS-LVDT

 

  • 50 mm, 100 mm, and 150 mm stroke lengths available
  • Extremely compact packaging with sensor body only 25 mm longer than the stroke length
  • Unguided armature
  • For use with standard LORD DEMOD signal conditioners.
  • ±2% to ±0.2% accuracy

Detail

Microminiature DVRT®

  • Measurement range: 3, 6 & 9 mm (standard version)

    – 1.5 mm (high resolution version)

  • Resolution: 1.5 µm for 3 mm stroke

    – 3.0 µm for 6 mm stroke

    – 4.5 µm for 9 mm stroke

    – 300 nm for high resolution version

  • Free sliding core.
  • Frequency response: 800 Hz standard, 20 kHz optional

Detail

Microminiature Gauging DVRT®

  • Measurement range: 3, 6 & 9 mm (standard version)

    – 1.5 mm (high resolution version)

  • Resolution: 1.5 µm for 3 mm stroke

    – 3.0 µm for 6 mm stroke

    – 4.5 µm for 9 mm stroke

    – 300 nm for high resolution version

  • Spring guided core, with sapphire ball tip.
  • Frequency response: 800 Hz standard, 20 kHz optional

Detail

Subminiature DVRT®

  • Measurement range: 4, 8, 24, 38 mm (standard resolution)

    – 6 mm (high resolution)

    – 500 µm or less (nano resolution)

  • Resolution: 1.0 µm for 4 mm stroke

    – 2.0 µm for 8 mm stroke

    – 6.0 µm for 24 mm stroke

    – 9.5 µm for 38 mm stroke

    – 0.6 µm for high resolution version

    – 125 nm for nano resolution version (up to 10 nm resolution is possible with customized sensor range and electronics)

  • Free sliding core.
  • Frequency response: 800 Hz standard, 20 kHz optional

Detail

Subminiature Gauging DVRT®

  • Measurement range: 4, 8, 24, 38 mm (standard resolution)

    – 6 mm (high resolution)

    – 500 µm or less (nano resolution)

  • Resolution: 1.0 µm for 4 mm stroke

    – 2.0 µm for 8 mm stroke

    – 6.0 µm for 24 mm stroke

    – 9.5 µm for 38 mm stroke

    – 0.6 µm for high resolution version

    – 125 nm for nano resolution version (up to 10 nm resolution is possible with customized sensor range and electronics)

  • Spring guided core, with stainless steel ball tip.
  • Frequency response: 800 Hz standard, 20 kHz optional.

Detail

Non-Contact DVRT®

  • Measure the displacement and proximity of a metal target without physical contact.
  • Target material can be ferrous, non-ferrous, aluminium, brass, etc.. (user has to specify)
  • Measurement range: 1.0 mm, 2.5 mm
  • Resolution: dependent upon displacement area
  • Frequency response: 800 Hz standard, 20 kHz optional

Detail

Signal Conditioners for DVRTs

DEMOD – DVRT® -2

  • No. of input sensor channels: 1
  • Sensor excitation: Alternating constant current, 156 kHz typical
  • Analog output: 0 to 10 V dc (standard), 0 to 5 V dc (optional)
  • Power supply: 12Vdc, 30mA (Universal voltage wall AC/DC converter provided)

Detail

DEMOD-DVRT® Backplane

  • Analog backplane allows connectivity up to 4 nos. of DEMOD-DVRT®-2
  • No. of input sensor channels: 4
  • Power supply: 9 to 32 Vdc

Detail

DEMOD-DC®

  • No. of input sensor channels: 1
  • Sensor excitation: regulated sinewave 150 kHz standard, other frequencies available on request.
  • Analog output: 0 to 5 Vdc typical
  • Power supply: 6 to 16 Vdc, 22 mA

Detail

DEMOD-DVRT® -TC

  • No. of input sensor channels: 1
  • Sensor excitation: regulated sinewave, 70 kHz typical
  • Analog output: ± 4.5 Vdc typical
  • Power supply: provided via DEMOD-DVRT® motherboard.

Detail

DVRT-Link™-LXRS®

High-speed, wireless DVRT displacement sensor signal conditioner.

  • No. of channels: DVRT displacement sensor input, 1 channel
  • Max. sampling rate: 4,096 Hz
  • Resolution: 12-bits
  • Data storage: 2 MB

Detail

DEMOD-DIN

Designed for ease of use and general versatility, this printed circuit card provides complete Temperature Compensated conditioning for MicroStrain’s DVRT® sensors.

  • No. of input sensor channels: 1
  • Sensor excitation: regulated sinewave 70 kHz standard
  • Analog output: ±4.5 Vdc typical
  • Power supply: ±6.5 Vdc volts min, ±16 Vdc max, 30 mA

Detail

OEM/Customize

We provide you:

  • anything from a minor tweak to an existing product to a complete custom design
  • aggregate 1,000 years of sensing expertise
  • aggressive volume pricing of 1/2 to 1/3 of the list price
  • solutions engineered under AS9100 and ISO9001 standards
  • vast application experience
  • highly-optimized supply chain

OEM Options

OEM DISPLACEMENT SENSING

Non-contact, micro- and subminiature sensors working where standard LVDTs can’t.

We work side-by-side with your engineers to embed our displacement sensors, improving dimensional control and tolerances. Proven embedded applications include rudder position on fixed-wing aircraft and deflection on a rocket’s fuel tank to measure fuel burn. Our high-resolution, half-bridge LVDTs are available in a diameter as small as 1.5 mm, and they run millions of cycles at temperatures from -55 °C to 170 °C, even in harsh environments. Open the door to solutions previously unavailable by letting our team do the work for you. Save time, money and manpower as your technology becomes future-proof.

Detail