Sensing Devices
Bespoke LVDT Windings, Transducers & Industrial Sensing Devices
Anstee Coil Technology designs and manufactures custom LVDT coils, variable reluctance probes, inductive pickups, and high-temperature transducers for specialised industrial OEM applications worldwide. We specialise exclusively in custom electromagnetic sensor sub-assemblies and fine-gauge sensing windings—we do not manufacture complete consumer measuring instruments or digital display units.
Sensing Device Design & Manufacturing Expertise
Specialised sensing applications place severe demands on electromagnetic symmetry, thermal stability, signal linearity, and pressure resistance. Standard off-the-shelf sensors frequently fail when subjected to aggressive fluids, continuous vibration, or extreme thermal ranges.
We design and manufacture bespoke sensing solutions from concept through to full production. Utilizing precision micro-winding, advanced magnetic core selection, hermetic potting, and high-temperature insulation systems, our sensors deliver long-term drift-free accuracy from –40°C up to +500°C.
OEM Sensing Device Capabilities
Bespoke inductive sensing coils, LVDTs, search coils, and variable reluctance pickups
Extreme operational temperature capability rating from –40°C to +500°C
Subsea and high-pressure encapsulated transducer builds (rated for deepwater hydrostatic pressures)
High-grade ceramic, polyimide, and mineral-insulated winding wires
Hermetic sealing, stainless steel encapsulation, and low-pressure overmoulding
Design-assist engineering collaboration integrating our design team directly into your R&D process
Rapid prototyping service for fast proof-of-concept testing and field validation
Integrated manufacturing connecting sensing coils, shielding, overmoulded headers, and cable harnesses
100% quality inspection, including impedance testing, thermal shock, insulation resistance, and Hi-Pot testing
Specialised protective packaging guaranteeing zero lead stress or sensor alignment distortion in transit
Governing Physics: Electromagnetic Induction & Thermal Resistance Stability
The operation of inductive sensing devices relies on Faraday's law of electromagnetic induction, where a change in magnetic flux (Φ) generates an induced electromotive force (e):
e = -N · (dΦ / dt)
Where e is the induced signal voltage, N is the turn count of the sensing coil, and dΦ/dt is the rate of change of magnetic flux. For position, speed, and proximity sensing, dΦ/dt is directly proportional to mechanical target movement. Anstee Coil maintains tight turn-count uniformity (N) across sensor batches to ensure identical signal sensitivity.
In high-temperature environments (up to 500°C), thermal variation alters conductor resistance according to the linear temperature coefficient of resistance equation:
R_T = R_0 · [1 + α · (T - T_0)]
Where R_T is conductor resistance at temperature T, R_0 is resistance at baseline temperature T_0, and α is the material temperature coefficient. To prevent signal drift across extreme thermal gradients, Anstee Coil matches temperature-stable wire alloys with balanced differential winding geometries, ensuring flat temperature response curves and absolute measurement accuracy.
Technical Specifications
| Specification Parameter | Standard Capability & Range |
|---|---|
| Sensor Types | Inductive Pickups, LVDTs, Proximity Sensors, Variable Reluctance Probes, Search Coils |
| Operating Temperature Range | –40°C to +500°C (Ultra-High Temp Options with Ceramic / Mineral Insulation) |
| Environmental Sealing | Hermetic Stainless Steel Casing, Epoxy Potting, Overmoulding (Rated up to IP68 / Subsea Deepwater) |
| Winding Conductor Materials | Ultra-Fine Enamelled Copper, Silver-Plated Copper, Pure Nickel Wire, High-Temp Alloy Wire |
| Interconnects & Lead Wire | Integrated High-Temp Flying Leads, PTFE/FEP Cable Harnesses, Overmoulded Strain Relief Headers |
| Quality Testing | 100% Inductance & Impedance Verification, Hi-Pot Isolation, Insulation Resistance, Thermal Cycling |
| Compliance & Accreditation | ISO 9001:2015, ISO 14001, ATEX & IECEx Compatible Designs, RoHS, REACH |
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Designed for Extreme Environments & Subsea Operations
Whether submerged in deepsea subsea oilfields, subjected to steam sterilisation in medical devices, or mounted near high-vibration aero-engines, our sensing devices are engineered for mechanical survival.
By applying Vacuum Pressure Impregnation (VPI), high-grade epoxy encapsulation, and laser-welded stainless steel housings, our sensors eliminate microphonic noise, resist fluid ingress, and retain structural integrity across millions of operational cycles.
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Global Manufacturing & Tri-Region Supply
Anstee Coil Technology delivers bespoke sensing devices globally, supporting OEM clients across Europe, Asia, North America, and Latin America. We guarantee uniform engineering standards, ISO 9001 quality controls, and reliable lead times from our manufacturing facilities in the UK, China, and Mexico.
Frequently Asked Questions
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Our standard sensing devices operate across –40°C to +180°C (Class H). For extreme process environments, oil downhole tools, or aerospace testing, we manufacture ceramic and mineral-insulated sensing devices rated up to +500°C.
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Yes. We design and encapsulate sensing sub-assemblies using specialised potting compounds, overmoulding, and hermetically sealed stainless steel enclosures engineered to withstand extreme hydrostatic pressures in subsea environments.
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Yes. We manufacture fully integrated sensor sub-assemblies, incorporating the sensing coil, magnetic core, shielding, overmoulded headers, and custom loom cabling into a single plug-and-play component.
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We combine precise turn-count winding with temperature-stable conductor alloys and balanced differential coil geometries. This neutralises thermal resistance shifts and maintains accurate, linear output signal voltage.
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Yes. Our design-assist service collaborates directly with OEM engineering teams during concept, modeling, and prototyping to select optimum coil dimensions, core materials, and housing options.
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Utilising 3D-printed bobbin technology and stocked specialist magnet wires, prototype sensing devices are typically manufactured and dispatched within 2 to 5 working days.
Request a Quote for Sensing Devices
If you require bespoke sensing devices for specialised industrial applications, whether for prototype development or production supply, our engineering team is ready to support your project.
Contact us to discuss your requirements or request a quote.
Contact Us
UK
E sales@ansteecoil.co.uk
T +44 (0) 1453 708900
CHINA
E sales@ansteecoil.cn
T 0519-89886850
Mexico
E sales@ansteecoil.mx
T +52 81 87480766
Did you know...
Anstee copper coil technology is used around the globe. We share a planet where water covers 71% of the surface. Deep in the oceans, our coil technology plays a vital role in the safe operation of civilian and military submarines…
