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
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
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
Miniature Displacement Sensors
MicroStrain® offers a range of miniature displacement sensors, which are ideal for precise micro-position measurements. The miniature linear variable displacement transducers (LVDTs), include inductive contact, non-contact, slide, and spring-actuated sensors, are available in various stroke lengths — ideal in small spaces. The miniature LVDTs 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® miniature LVDTs are used with DEMOD signal conditioners for displacement measurement, monitoring and recording as shown in below system overview.
Miniature LVDT 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
Microminiature LVDT
- 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
Microminiature Gauging LVDT
- 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
Subminiature LVDT
- 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
Subminiature Gauging LVDT
- 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.
Non-Contact LVDT
- 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
Signal Conditioners for LVDTs
DEMOD – Digital
- No. of input sensor channels: 1
- Sensor excitation: AC Sine Wave, 140 kHz typical
- Analog output: 0 to 10 V dc (standard), 0 to 5 V dc (optional)
- Power supply: 12Vdc nominal ±1 V dc (universal voltage wall AC/DC converter provided)
- Power Consumption: 70 mA typical
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)
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
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
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.
