When selecting a linear position sensor—especially for high-performance motorsports or industrial applications—it’s important to understand how the sensor communicates with your system. The two most common output types are analog and digital, and each has advantages depending on your use case.
Below, we break down the key differences to help you choose the right solution for your application.
Analog Output Sensors
Analog sensors provide a continuously variable signal—typically a voltage (e.g., 0–5V, 0.5–4.5V, ±10V) or current (e.g., 4–20mA)—that changes proportionally with the position of the sensor.
Advantages:
- Simple to integrate with most data acquisition systems or ECUs
- Simple to troubleshoot using multimeter or other voltage or current measuring tools
- Widely used in motorsports, industrial, and OEM settings
- Compatible with most DAQ inputs without converters
Things to Consider:
- Signal can degrade over long cable runs due to electrical noise or resistance
- May require careful shielding and grounding to ensure accuracy
Digital Output Sensors
Digital sensors transmit discrete data—usually via a protocol like PWM (pulse width modulation), CANbus, or RS-485. The output represents position as a digital code or signal that is interpreted by a controller.
Advantages:
- High resolution and accuracy
- Immune to signal degradation over long distances
- Less susceptible to electrical noise from engines, ignition systems, or power lines
Things to Consider:
- Often requires a compatible controller or converter
- More complex setup than analog
- May introduce slight latency depending on protocol and sample rate
- More difficult to troubleshoot due to integration complexity
What’s Better for Motorsports Applications?
In most racing and high-performance environments, analog sensors are preferred because they offer:
- Fast, real-time response
- Straightforward integration with race data systems
- Reliability under high-vibration and high-heat conditions
However, digital sensors may be the better choice for applications requiring extremely precise measurements, long cable runs, or where digital infrastructure is already in place (e.g., aerospace, R&D test labs, or advanced EV systems).
The Sensor Connection Recommends:
For most motorsports setups—such as measuring shock absorber travel, suspension compression, or throttle position—a high-quality analog linear position sensor offers the best balance of accuracy, ease of use, and speed.
We offer a range of analog LVIT sensors built for:
- Track-tested durability
- Extreme vibration and temperature conditions
- Seamless integration with your DAQ system
Need help choosing the right sensor?
📞 Contact our team for support, specs, and custom options.