mNLP (multi-Needle Langmuir Probe)

The mNLP is a miniaturized, space-proven instrument designed to measure ionospheric plasma density with unprecedented sub-meter resolution. Unlike traditional Langmuir probes that require voltage sweeping, the mNLP system utilizes multiple needles to perform simultaneous measurements, achieving an exceptionally high sampling frequency of up to 10 kHz. This breakthrough capability is critical for resolving small-scale ionospheric plasma structures and turbulence that can severely impact the reliability of GNSS and communication signals. Developed in close collaboration with the University of Oslo (UiO), the system’s miniaturized design has a proven flight heritage from numerous international missions on sounding rockets and satellites. As the only instrument currently capable of resolving ionospheric plasma structures at scales below one meter, it provides unparalleled scientific insights into small-scale plasma irregularities. The system has been successfully deployed on numerous international missions, providing high-resolution data for the global scientific community. Its small form factor and low power consumption allow for easy integration into various space-borne research platforms without compromising performance. The mNLP is ideal for a wide range of platforms, from sounding rockets to CubeSats and larger satellites.