Three Core Technologies.
Thousands of Applications.
SMD Sensors builds precision measurement products across three fundamental sensing technologies — Thin Film, Capacitive, and Ultrasonic. Each technology is matched to the demands of the application, from sub-micron force sensing to non-invasive bubble detection.
Technology Overview
Select a technology family below to explore its product families, example products, and application areas.
Thin Film
Precision at the microscale
Thin film technology involves depositing ultra-thin layers of conductive or resistive material onto a substrate to create highly accurate sensing elements. This manufacturing process enables exceptional repeatability, low hysteresis, and superior temperature stability — ideal for demanding measurement environments.
Key Benefits
- Extremely stable output over temperature ranges
- Low hysteresis and drift
- Miniaturizable for space-constrained designs
- Excellent long-term repeatability
- Compatible with harsh media and environments
Thin Film Product Families
Shop All Products
Pressure Measurement
High-accuracy thin film pressure sensors for gauge, absolute, and differential measurement across a wide range of media and pressure ranges.
Example Products
P571 Series
OEM Pressure Sensor
P940 Diaphragm
Flush Diaphragm Sensor
B354 / B472
Barometric Pressure
N350 Non-Invasive
Non-Invasive Pressure
Common Applications
Force & Load Measurement
Precision thin film load cells and force sensors designed for integration into OEM equipment, offering high resolution and reliability.
Example Products
S100 Load Cell
Miniature Load Cell
S200 Series
Load Cell Series
S256 Force Sensor
OEM Force Sensor
Common Applications
Weight Measurement
Custom and standard thin film-based scale platforms for precise weight measurement in medical, laboratory, and industrial applications.
Example Products
W-Series Scales
Precision Scale Platform
Custom Scale Platforms
Custom Engineering
Common Applications
Torque Measurement
High-performance rotary torque measurement solutions built on thin film technology for dynamic and static torque sensing requirements.
Example Products
Custom Rotary Torque
Custom Torque Platform
Common Applications
Technology Comparison
Not sure which technology is right for your application? Use this reference to understand the key differences.
| Criterion | Thin Film | Ultrasonic | Capacitive |
|---|---|---|---|
| Contact with Fluid | Direct | None (clamp-on) | None (through wall) |
| Primary Measurement | Pressure, Force, Weight, Torque | Flow, Bubbles, Level | Level (continuous & point) |
| Media Compatibility | Wide range of media | Any liquid or slurry | Non-conductive preferred |
| Temperature Range | Very wide (-40°C to +150°C+) | Standard to extended | Wide |
| Ideal Applications | OEM embedded sensing | Medical fluid management | Tank & vessel level monitoring |