OVERVIEW
• Free core AC LVDT sensor
• Miniature 0.375" (9.5mm) O.D. size body, low core mass
• Stroke Lengths from ±0.025 inch to ±1.0 inches (0.65mm to 25mm)
• Non-linearity less than ±0.25% of FS
• Sealed to IP61
• Applications: Laboratory R&D Materials Testing, Valve Position Sensing, Factory Automation
MADE IN THE USA
The HGSI T-375-A series AC Linear Variable Differential Transformer (LVDT) Position Sensors are used to monitor and track the linear
motion or position of a target. These miniature sensors are ideal for use in industrial and laboratory applications including automotive
R&D, motorsports, industrial, motion control, medical, military and aerospace.
These swaged-end sensors are constructed entirely of stainless steel and are resistant to dust and temperature. The coil windings are
sealed using an epoxy potting compound providing excellent protection against shock and vibration.
The T-375-A series will operate with most any conventional differential input AC LVDT signal conditioner, but operation with ratiometric
signal conditioning is not recommended. HGSI offers a full line of compatible AC LVDT signal conditioners. Please contact us for a
recommendation.
Options:
TECHNICAL SPECIFICATIONS
Input Voltage: | 3 Vrms (nominal) |
Input Frequency: | 400 Hz to 10 kHz |
Linearity Error: | ≤ ± 0.15% of FSO typical, ± 0.25% maximum |
Null Voltage: | 0.5% of FS |
Repeatability: | 0.01% of FS |
Hysteresis: | 0.01% of FS |
Operating Temperature: | Standard Version: -54 to +135°C (-65 to +275°F) |
Thermal Coefficient: | < -0.02%/°C of FS (< -0.01%/°F of FS) |
Humidity: | 90% RH |
Housing: | Stainless steel |
Contact Tip: | 32 AWG Teflon™ insulated, 12” length (305 mm) |
Life Expectancy: | > 100 million cycles |
Shock Rating: | 1000g, 11 mS |
Vibration Rating: | 20 g to 2 kHz |
IP Rating: | IEC IP61 |
Country of Manufacture: | Made in the USA |
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T-375-A Series Miniature AC LVDT Position Sensor
Product Overview
The T-375-A Series AC Linear Variable Differential Transformer (LVDT) from Harold G. Schaevitz Industries is a miniature, free-core linear position sensor engineered for precision in compact spaces. With a 0.375 inch (9.5 mm) outer diameter and low mass core , this sensor delivers high-performance linear displacement measurements in space-constrained environments without compromising accuracy or durability.
Designed for laboratory, R&D, medical, and embedded industrial applications, the T-375-A series offers stroke lengths ranging from ±0.025 inch to ±1.0 inch (±0.65 mm to ±25 mm) and non-linearity of less than ±0.25% of full scale, making it ideal for fine motion tracking where precision and reliability are paramount.
Key Features
Miniature 0.375" (9.5 mm) diameter body for tight installation spaces
Free core design for versatile mechanical coupling
Stroke lengths from ±0.025 to ±1.0 inches (±0.65 mm to ±25 mm)
Non-linearity ±0.25% of full scale
Sealed to IP61 for basic protection against dust
Epoxy-potted windings for shock and vibration resistance
Made in the USA
Miniature Design for Compact Applications
The T-375-A Series is purpose-built for applications where space is limited and precision is non-negotiable. The compact 9.5 mm housing allows for seamless integration into instrumentation, tooling, medical devices, and small-scale automation equipment. The lightweight, low-mass core ensures fast dynamic response, particularly valuable in applications involving rapid motion or acceleration.
This miniature form factor makes the T-375-A ideal for embedded sensor configurations and portable testing devices.
Rugged Construction for Reliable Operation
Despite its small size, the T-375-A is constructed for durability. The stainless steel housing offers resistance to mechanical wear and corrosion, while the epoxy-potted coil assembly protects internal components from shock and vibration. The sensor’s IP61 rating ensures basic protection against environmental dust and debris.
Applications
Laboratory & R&D
Ideal for test setups requiring fine resolution and minimal space usage:
Miniature test stands
Research instrumentation
Displacement tracking in micro-mechanical systems
Valve Position Sensing
Compact enough to fit inside or alongside valve housings for:
Pneumatic and hydraulic control systems
Small flow control valves
Microfluidic or biomedical dispensing systems
Factory Automation
Suitable for integration into small industrial systems and robotics:
Precision assembly lines
Linear actuator position tracking
Automated testing and gauging
Medical & Aerospace
Built for use in sensitive, high-performance environments:
Surgical and diagnostic equipment
Aerospace instrumentation and mechanisms
Compact mechatronic assemblies
System Integration
The T-375-A Series is compatible with standard AC LVDT signal conditioners that support differential input. HGSI offers a range of compatible signal conditioners—please contact our technical team for guidance on selecting the right model for your setup.
Why Choose the T-375-A?
Ultra-compact footprint for tight installations
Contactless AC LVDT technology for long-lasting reliability
Excellent stroke-to-size ratio for high-efficiency integration
Resilient design with potting and stainless steel housing
Made in the USA
Precision Sensing in a Compact Package
The T-375-A Series Miniature AC LVDT is a high-performance position sensing solution for applications where space is limited but measurement accuracy and durability cannot be compromised. With flexible integration options, proven AC LVDT technology, and rugged miniature construction, the T-375-A provides the reliability engineers depend on in testing labs, medical systems, industrial automation, and beyond.
Need assistance integrating the T-375-A into your system?
Contact Harold G. Schaevitz Industries today for product support and recommendations tailored to your application.