Find answers to the most common questions about this site. If you can’t find the answer to your question after browsing the selected categories below, please send us your question in the contact us form and we will get back to you as soon as possible.
Some variable capacitance sensors are indeed quite sensitive to one or more of the above. However, the Electric Encoder™ breakthrough which was made in the context of defense applications has demonstrated the opposite and its superiority has been demonstrated in a wide range of applications besides defense. It is covered by several basic patents and relies on a continuous development effort since 1994.
The Electric Encoder™ provides the absolute position and its continuous, exceptionally smooth output signals proportional to the SIN and COS of the measured rotary displacement. Rather than directly encoding the displacement it leaves the encoding task to the A/D converter and software optimized for it.
Yes, the output signals convey the absolute rotary position without any movement.
Thanks to the relatively low number of ECR the output signals are confined to the low end of the frequency spectrum and are less prone to errors due to PWM noise. The absence of temperature, or time, degradation mechanisms ‐ ball bearings, LEDs, etc. virtually eliminate any failure mechanisms.
An internally generated space/time modulated electric field interacts with a rotor which is made of a dielectric composite material. The rotor includes a peripheral sinusoidally shaped 3D pattern that serves the Fine channel, and a recessed sinusoidal pattern that serves the Coarse channel. The electric field is integrated over the full rotor area (hence “holistic”) and the resulting signal is processed and separated into Sine and Cosine output channels. Since a common channel processes both the Sine and Cosine outputs they are nearly matched and the decoded angle is stable over time and temperature.
The Electric Encoder™ is inherently immune to magnetic fields, internally shielded from electrical fields, and is also insensitive to RFI as evidenced by many defense applications.
Very well, since it integrates signals over the entire rotor area, averaging out vibration effects. It is being used in demanding defense applications.
The Rotary Electric Encoder™ utilizes the entire physical area of the rotor at all times, unlike optical and magnetic encoders, which rely on only a small section. Additionally, its sine and cosine output signals are generated and processed within a common channel, ensuring high purity and precise matching. This design makes it highly resistant to mechanical assembly variations, vibrations, installation errors, temperature fluctuations, and contaminants. As a result, the traditional correlation between high measurement accuracy and precise mechanical construction is no longer a limiting factor.
Yes, Netzer encoders are simple to installation both in production and in development. The Encoder Explorer even gives a precise reading of the quality of installation to give reading.
Netzer encoders feature a simple push-button or app-based calibration process that requires just a few seconds of movement. This is a one-time setup—once calibrated, the encoder is ready to use. Additionally, its absolute position is instantly available upon wake-up, eliminating the need for recalibration.
A non-flat installation can affect accuracy. Proper alignment is recommended for optimal performance. However, Netzer value comes in the form of the holistic design that allows operation in descent mechanics while others might have greater issues.
If the gap is larger than specified, shims (that Netzer offers as accessories) or adjustments may be required to ensure proper alignment and functionality.
The required flatness depends on the encoder model, but precise mounting surfaces are essential for best performance.
Calibration tools typically include the use of our free downloadable Encoder Explorer application software.
Yes, specific models support SPI communication. Please check the product specifications.
No concern, this is one of the many advantages of capacitive technology that perform excellent in noisy EMI environments. Grounding is recommended to minimize electromagnetic interference for reliable performance.
Yes, proper grounding reduces noise and enhances signal integrity.
Yes, the EEC provides insights into installation quality, helping to optimize mechanical alignment.
The EEC requires proper connection, compatible software, and adherence to installation guidelines for accurate performance.
Check the connections, ensure the latest software version is installed, and refer to the troubleshooting guide. If issues persist, contact support.
An update is required during the initial installation to ensure optimal performance, compatibility, and access to the latest features. However, no further updates are needed after installation.
Not always. The EEC is used for calibration and diagnostics, but some Netzer encoders feature a push-button calibration, eliminating the need for the EEC in those cases.
SSI and BiSS-C absolute serial protocols are standard features. The VLZ model also supports A Quad B incremental output. The VLA series offers Sine and Cosine analog outputs, with documentation provided for customers to handle signal interpolation on their end.
Yes, Netzer COTS VLS encoders are designed and tested to withstand LEO environments, including radiation exposure, low outgassing, and single-event effects.
VLS encoders are competitively priced, space-tested COTS solutions.
No, VLS encoders are tested only for LEO/MEO missions. For GEO applications, we have extensive experience in developing custom solutions based on specific SOW requirements.
Yes, Netzer has encoders that comply with relevant NASA standards and qualifications. Some products have space qualified cables, some are using COTS components that are tested for radiation and low outgassing requirements.
Our encoders have a proven track record of dozens of space missions, demonstrating reliability in harsh environments.
The encoder can tolerate brief exposure to 150°C, but prolonged exposure may impact performance.
The encoder is designed to operate in a wide temperature range from -55°C to 125°C, with specific limits depending on the model.
Yes, we offer batch testing to ensure performance before final integration.
Yes, Netzer encoders meet relevant environmental standards such as ISO 9001, Iso 13485, CE and more.
Yes, we offer customization options to fit specific requirements.
The lifespan depends on operating conditions, but Netzer encoders are designed for long-term reliability of over 15 years MTBF.
The Mean Time to Failure (MTTF) varies by model; detailed figures are available in the product specifications most products have MTBF of 15 or 30 years depending on model.
Yes, a longer cable can be used. Contact us for recommendations.
No, Netzer encoders are maintenance-free.
Netzer encoders use standard 28/30 gauge cables, selected for their flexibility to accommodate challenging installations. Various lengths and connector options are available. For detailed cable specifications, refer to your product guide. Space-grade cable options can be found in the VLS product guide. CustomFit and specialized cable and connector solutions are available upon request.
