D5 & D6 LVDT Displacement Transducer

High accuracy
Miniature
Infinite resolution
High cycle life
Stainless steel



RDP LVDT How it Works

   Data sheet (389kb)
These transducers are for displacement / position measurement. They make an accurate position measurement of the movement of the armature (the sliding part) relative to the body of the displacement transducer.

This transducer uses the Linear Variable Differential Transformer (LVDT) principle which means that it is probably the most robust and reliable position sensor type available. The strength of the LVDT sensor's principle is that there is no electrical contact across the transducer position sensing element which for the user of the sensor means clean data, infinite resolution and a very long life.

The LVDTs are available as either unguided or spring return versions.

LVDT transducers require external signal conditioning as detailed in the 'Electronics' section of this website.

Unguided version.
On our unguided LVDTs the armature assembly is a separate component, to make a measurement the user must guide the armature inside the body without touching the sides. Unguided position measurement transducers are appropriate where external guidance is available and give truly non-contact operation

End (axial) exit cable.
Connection details (D5)  D1=9,5mm
Connection details (D6)D3=2mm
TF=M3x0,5
TypeRangeLinearity error (% F.S.)LX (nom)IDTotal weightArmature weightTFOver-Travel Sensitivity (nom)
Inward over-travel
D5/25HK±0,65mm<±0,5/±0,2535mm28mm3,17mm14g1,3g19mm7,9mm43mV/V
D6/02500U±2,5mm<±0,5/±0,25/±0,143mm19mm2,90mm17g1,8g15mm1,5mm375mV/V
D6/05000U±5mm<±0,5/±0,25/±0,156mm25mm2,90mm21g1,8g18mm2,0mm700mV/V
D5/300HK±7,5mm<±0,5/±0,25/±0,158mm30mm2,54mm20g1,8g19mm3,9mm502mV/V
D5/400HK±10mm<±0,5/±0,2563mm33mm2,54mm26g1,9g19mm4,4mm576mV/V
MD5/500HK±12,5mm<±0,5/±0,2579mm35mm2,54mm34g2,3g19mm4,3mm775mV/V
MD5/1000HK±25mm<±0,5/±0,25114mm48mm2,54mm34g3,1g18mm4,1mm475mV/V
MD5/2000HK±50mm<±0,5/±0,25210mm74mm2,54mm62g5,3g18mm5,0mm535mV/V
MD5/3000HK±75mm<±0,5/±0,25298mm99mm2,54mm87g7,4g18mm5,0mm525mV/V

Side (radial) exit cable.
Connection details (D5)  D1=9,5mm
D3=2mm
A=6mm (nominal)
Connection details (D6)TF=M3x0,5
TypeRangeLinearity error (% F.S.)LX (nom)IDTotal weightArmature weightTFOver-Travel Sensitivity (nom)
Inward over-travel
D6/02500URA±2,5mm<±0,5/±0,25/±0,145mm19mm2,92mm17g1,8g15mm1,5mm375mV/V
D6/05000URA±5mm<±0,5/±0,25/±0,160mm25mm2,92mm21g1,8g18mm2,0mm700mV/V
D5/300HKRA±7,5mm<±0,5/±0,25/±0,160mm30mm2,54mm20g1,8g18mm3,9mm502mV/V
D5/400HKRA±10mm<±0,5/±0,2565mm33mm2,54mm26g1,9g18mm4,4mm576mV/V
MD5/500HKRA±12,5mm<±0,5/±0,2581mm35mm2,54mm34g2,3g18mm4,3mm775mV/V
MD5/1000HKRA±25mm<±0,5/±0,25117mm48mm2,54mm34g3,1g18mm4,1mm475mV/V
MD5/2000HKRA±50mm<±0,5/±0,25212mm74mm2,54mm62g5,3g18mm5,0mm535mV/V
MD5/3000HKRA±75mm<±0,5/±0,25301mm99mm2,54mm87g7,4g18mm5,0mm525mV/V

Spring return version.
Our spring displacement transducer has bearings to guide the armature inside the measurement sensor and a spring which pushes the armature to the fully out position. Spring return LVDTs are appropriate where it is not possible to connect the transducer armature to the moving component being measured.

End (axial) exit cable.
Connection details (D5)
 D1
D6/00250A to D6/01000A8,0mm
D6/02500A to MD5/3000AG9,5mm
Connection details (D6)
TypeRangeLinearity error (% F.S.)LX (nom)Total weightSpring force (nom)Over-Travel Sensitivity (nom)
Spring force at XSpring rateInward over-travelOutward over-travel
D6/00250A±0,25mm<±0,5/±0,2549mm12mm11g0,6N1,2N/cm0,6mm0,6mm38mV/V
D6/00500A±0,5mm<±0,5/±0,2549mm12mm11g0,6N1,2N/cm0,3mm0,3mm75mV/V
D6/01000A±1mm<±0,5/±0,25/±0,152mm13mm12g0,4N1,2N/cm1,8mm0,8mm150mV/V
D6/02500A±2,5mm<±0,5/±0,25/±0,161mm12mm25g0,9N0,9N/cm1,3mm1,3mm375mV/V
D6/05000A±5mm<±0,5/±0,25/±0,178mm12mm30g0,9N0,8N/cm1,1mm1,4mm700mV/V
D5/300AG±7,5mm<±0,5/±0,25/±0,188mm15mm34g1,1N0,6N/cm1,1mm1,6mm502mV/V
D5/400AG±10mm<±0,5/±0,2599mm19mm40g1,4N0,4N/cm2,5mm1,3mm576mV/V
MD5/500AG±12,5mm<±0,5/±0,25121mm22mm48g1,4N0,4N/cm2,5mm1,3mm775mV/V
MD5/1000AG±25mm<±0,5/±0,25192mm36mm76g2,7N0,4N/cm1,2mm2,9mm475mV/V
MD5/2000AG±50mm<±0,5/±0,25349mm65mm138g4,5N0,4N/cm4,2mm3,2mm535mV/V
MD5/3000AG±75mm<±0,5/±0,25525mm100mm208g6,3N0,4N/cm5,0mm5,0mm525mV/V

Side (radial) exit cable.
Connection details (D5)
 D1
D6/00250ARA to D6/01000ARA8,0mm
D6/02500ARA to MD5/3000AGRA9,5mm
Connection details (D6)A=6mm (nominal)
TypeRangeLinearity error (% F.S.)LX (nom)Total weightSpring force (nom)Over-Travel Sensitivity (nom)
Spring force at XSpring rateInward over-travelOutward over-travel
D6/00250ARA±0,25mm<±0,5/±0,2550mm12mm11g0,6N1,2N/cm0,6mm0,6mm38mV/V
D6/00500ARA±0,5mm<±0,5/±0,2550mm12mm11g0,6N1,2N/cm0,3mm0,3mm75mV/V
D6/01000ARA±1mm<±0,5/±0,25/±0,153mm13mm12g0,4N1,2N/cm1,8mm0,8mm150mV/V
D6/02500ARA±2,5mm<±0,5/±0,25/±0,164mm12mm25g0,9N0,9N/cm1,3mm1,3mm375mV/V
D6/05000ARA±5mm<±0,5/±0,25/±0,183mm12mm30g0,9N0,8N/cm1,1mm1,4mm700mV/V
D5/300AGRA±7,5mm<±0,5/±0,25/±0,190mm15mm34g1,1N0,6N/cm1,1mm1,6mm502mV/V
D5/400AGRA±10mm<±0,5/±0,25102mm19mm40g1,4N0,4N/cm2,5mm1,3mm576mV/V
MD5/500AGRA±12,5mm<±0,5/±0,25124mm22mm48g1,4N0,4N/cm2,5mm1,3mm775mV/V
MD5/1000AGRA±25mm<±0,5/±0,25195mm36mm76g2,7N0,4N/cm1,2mm2,9mm475mV/V
MD5/2000AGRA±50mm<±0,5/±0,25351mm65mm138g4,5N0,4N/cm4,2mm3,2mm535mV/V
MD5/3000AGRA±75mm<±0,5/±0,25527mm100mm208g6,3N0,4N/cm5,0mm5,0mm525mV/V


Specification

Excitation/supply (acceptable)0,5V to 7V rms, 2kHz to 10kHz (sinusoidal) Temperature coefficient (span) ±0,01% F.S. /C (typical)
Excitation/supply (calibrated)5V rms, 5kHz (sinusoidal) Operating temperature range -20C to 125C
Output load100k Ohms Electrical termination 2m (integral cable) Longer available to order,


Options and accessories

TM0315 Operating temperature range (maximum) = 200C
Alternative probe tips for LVDTs
Mounting block
E74 In-Line Signal Conditioning Amplifiers
Electronics


All dimensions and specifications are nominal. www.rdpe.com/za/d5-d6.htm 20170119
Due to our policy of on-going development, specifications may change without notice. Any modification may affect some or all of the specifications for our equipment.
 
Manufacturer
RDP Electronics Ltd
Grove Street, Heath Town
Wolverhampton, West Midlands, WV10 0PY
United Kingdom
Tel: +44 1902 457512
Fax: +44 1902 452000
Email: sales@rdpe.com
URL: www.rdpe.com
Distributor
Transducer Technology
PO Box 13592, Northmead
Benoni, 1511, South Africa

Tel: +27 11 425 2094
Fax: +27 11 425 3359
Email: sales@transducers.co.za

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