OVERVIEW
• Linear Variable Inductive Transducer (LVIT)
• Sensing element is contactless, virtually wear-free
• Stroke lengths available from 6.5 to 100 mm (0.25 to 4 inches)
• Tested to over 110 million cycles
• Spring loaded for simple mounting
• Environmental rating of IP67 (Dust tight, Short term water immersion)
• 0.75" (19 mm) diameter
• CE marked and RoHS compliant
• A more robust alternative to Linear Potentiometers
MADE IN THE USA
LVIT Technology = a longer life-span than a Potentiometer!
HGSI ILPS-19S series Spring Loaded Linear Variable Inductive Transducer (LVIT) Position Sensors are used to monitor and track the linear motion or position of a target.. These ruggedized sensors are ideal for use in industrial and laboratory applications including automotive R&D, motorsports, industrial, motion control, medical, military and aerospace.
The inductive coil and spoiler combination is a contactless solution, eliminating the wear and dithering issues commonly experienced with Potentiometer type sensors. The amplifier electronics are contained within the housing, no need for an external signal conditioner.
The ILPS-19S series sensor is made from industrial duty materials for resistance to dust, water, temperature, shock, and vibration.
The SenSet Field Programmability feature allows for quick and easy recalibration of the units’ zero and full scale electrical output.
Options:
TECHNICAL SPECIFICATIONS
Stroke Lengths: | 0.25" (6.5mm), 0.5" (12.5mm), 1" (25mm), 2" (50mm), 3" (75mm), 4" (100mm) |
Non-Linearity (BFSL method): | Stroke Length + 0.12" (3 mm) |
Non-Linearity (BFSL method): | +/- 0.15% of full stroke max, +/- 0.10% of full stroke typical |
Resolution: | 0.025% of full stroke |
Repeatability: | 0.025% of full stroke |
Bandwidth: | 300 Hz (3.3 mS) |
Element Type: | Variable Inductive |
Excitation Voltage: | 12 to 30 VDC |
Current Draw: | ~35 mA (nominal) |
Output Cable: | 4 conductor with drain, 22 AWG, PVC jacket, 3 foot long |
Operating Temperature Range: | -40 to +105°C (-40 to +220°F) |
Thermal Coefficient of Sensitivity: | +/- 0.015%/°C nominal |
Humidity: | 95% Max. RH (non-condensing) |
Liquid & Dust Protection: | IP67 |
Shock Rating: | 1000 g, 11 ms |
Vibration Rating: | 5-20 Hz 0.5 inch p-p; 20-2000 Hz 4.2 g p-p |
Housing Dimension (O.D): | 0.75 inch (19 mm) |
DOCUMENTS & DOWNLOADS
VIDEOS
PRODUCT NUMBERS
ILPS-19S Series Spring-Loaded Linear Variable Inductive Transducer (LVIT) Position Sensor
Product Overview
The ILPS-19S Series Spring-Loaded Linear Variable Inductive Transducer (LVIT) from Harold G. Schaevitz Industries delivers a robust and reliable solution for position measurement in demanding industrial, R&D, and test applications. Built with rugged construction, spring-loaded convenience, and proven contactless technology, this compact sensor offers outstanding performance and longevity in dynamic environments.
With stroke lengths available from 6.5 mm to 100 mm (0.25 to 4 inches), the ILPS-19S offers versatility for a wide range of dimensional gaging and displacement measuring tasks. Engineered with integrated electronics, SenSet field programmability, and an IP67 environmental rating, this sensor is ready for high-cycle operations—without the need for external signal conditioners.
Compact 19 mm (0.75”) housing for tight space installations
Spring-loaded plunger for consistent surface contact
Contactless operation tested to over 110 million cycles
Stroke lengths: 6.5 mm to 100 mm
Integrated electronics – DC in / DC out
IP67 rated for dust and water resistance
SenSet™ Field Programmability for in-field calibration
CE and RoHS compliant
Proudly Made in the USA
The ILPS-19S combines durability, precision, and ease of installation in a spring-loaded format ideal for automotive testing, industrial automation, and Test lab applications.
Advanced LVIT Technology
Contactless Performance, Long-Term Reliability
The ILPS-19S employs contactless LVIT technology, eliminating the mechanical wear common in potentiometers. The sensor’s internal coil and moving spoiler work together to generate a signal based on inductance changes—resulting in smooth, low-noise, and highly repeatable output. With no sliding contacts, the ILPS-19S is virtually maintenance-free and engineered for high-cycle operation.
Spring-Loaded Convenience
The integrated return spring enables the sensor’s shaft to remain in contact with the measurement surface or target at all times—making the ILPS-19S an ideal solution for surface measurement, dimensional gaging, and test fixtures where automatic return-to-zero is desired.
Key Applications
Automotive & Motorsports Testing
The ILPS-19S is a go-to sensor for vehicle R&D, component testing, and performance validation in motorsports environments. Its spring-loaded action ensures accurate output in applications like suspension travel, linkages, and pedals, even under rapid movement and vibration.
Industrial Automation & Equipment
In automated machinery and quality assurance systems, the ILPS-19S provides reliable position and displacement monitoring. From packaging equipment to robotics and material handling, its compact size and ruggedness make it a versatile tool for integration.
Medical & Laboratory Instrumentation
The consistent return action and high-resolution output of the ILPS-19S make it ideal for laboratory testing rigs, inspection stations, and medical device calibration tools where fast, accurate linear measurement is needed.
Aerospace & Military
The ILPS-19S meets the rigorous demands of aerospace and defense test platforms. It performs reliably in environments with vibration, temperature, and other operational extremes—without signal degradation or mechanical wear.
Product Features
Engineered for Harsh Environments
IP67 Environmental Rating: Fully dust-tight and water-resistant for rugged field and industrial use
300 Series Housing: resists shock, vibration
Tested for Longevity: Over 110 million cycles in operational testing
Integrated Electronics
Standard analog outputs including 0–10 VDC, ±10 VDC, and 4–20 mA
Eliminates the need for separate signal conditioning modules
Easy Field Calibration with SenSet™
SenSet™ Programmability: Simple zero and span calibration with no special tools
Customizable Output Scaling: Adjust the output to match your exact application requirements
Flexible Integration: Ideal for fast setup in R&D and evolving system configurations
Installation & System Integration
Quick & Flexible Mounting
Spring-loaded shaft ensures consistent contact with target surfaces
Compact body and spring loading makes for easy installation
Suitable for benchtop, embedded, and mobile test applications
Electrical Integration
Simple wiring and standard industrial outputs
Compatible with PLCs, DAQs and other measurement recording systems.
Compact Precision for Demanding Applications
The ILPS-19S Series Spring-Loaded LVIT Sensor is the ideal solution for test engineers and professionals who need a compact, durable, and precise sensor for linear position measurement. Whether you're running gaging stations on the production line or collecting dynamic motion data in a test lab, the ILPS-19S delivers maintenance-free performance with plug-and-play convenience.
Why Choose ILPS-19S?
Spring-loaded return for consistent gaging applications
Contactless LVIT design for high-cycling
Field-adjustable with built-in SenSet™ calibration
Made in the USA and built for extreme environments
Need help configuring the right sensor for your application?
Contact our team of application engineers today.