NASA is developing several sensor systems and algorithms for use on Artemis moon landings. It’s called the Safe and Precise Landing – Integrated Capabilities Evolution (SPLICE) technology suite. It consists of three primary elements: An inertial measurement unit (IMU) and a camera for terrain relative navigation. Second is Doppler LiDAR to determine the lander’s velocity […]
Time-of-Flight
How do time-of-flight sensors work?
Using the time-of-flight (ToF) principle, a ToF sensor measures the distance between the sensor and an object. The sensor emits a signal that is reflected off an object and then detects the time for a round trip to occur. Typically, either light or sound waves can provide the transmitted signal. In either case, the distance […]
ToF sensor maps 3D surfaces
STMicroelectronics has announced a new family of high-resolution Time-of-Flight sensors that bring advanced 3D depth imaging to smartphones and other devices. The 3D family debuts with the VD55H1. This sensor maps three-dimensional surfaces by measuring the distance to over half a million points. Objects can be detected up to five meters from the sensor, and even further […]
Ultrasonic ToF sensors work at short and long ranges
TDK Corporation has introduced the Chirp ICU-10201 and ICU-20201, two new high-performance, ultra-low power integrated ultrasonic Time-of-Flight (ToF) sensors for short- and long-range detection. The new MEMS sensors embed a more powerful on-chip processor with higher computational power; the enhanced processing capabilities allow a wide range of application algorithms to fit and to run on-chip, […]
Sensors, sensors everywhere. Now what do I do?
By Moshe Sheier, Vice President of Marketing at CEVA Mobile computing has driven an explosion in product opportunities – smartphones, wearables, hearables, sports cameras, and more. Sensing will further extend opportunities in applications which must be environment-aware. Now it’s commonplace to think about object recognition and collision warning through visual, radar, or Lidar sensing. Short-range […]
How can police locate where a gunshot came from?
Time is of the essence. When an active shooting occurs, the key to preventing and/or minimizing injuries and death is quickly identifying exactly where the shooter is, end the threat and then treat and transport victims. Gunshots have unique audio characteristics so microphones can detect and provide information for location analysis. With its ShotSpotter site […]
What kind of growth is expected in 3D sensing?
According to the report, “3D Sensor Market by Type” the global 3D sensor market is expected to grow from USD 2.9 billion in 2020 to USD 10.0 billion by 2025, at a compound annual growth rate (CAGR) of 27.9%. The market researchers acknowledge that one of the main driving factors of 3D sensor market is […]
How can time of flight technology be used?
At Sensors Expo 2019 in San Jose, CA, Clint Cowan from Laser Technology demonstrates and explains the company’s time of flight laser technology for detection in an intelligent gate and its TruSense S300 sensor for non-contact fluid-level sensing in clear water. With the intelligent gate, if a person is inside of 3 feet, the laser […]
What types of sensors are used in underwater navigation and exploration? (Part 2 of 2)
Underwater navigation and exploration require special sensors for object detection and imaging. Part 1 of this blog addressed cameras and sonar. LiDAR is also used for underwater applications. Studying the depths and shapes of underwater terrain or bathymetry can be performed by bathymetric LiDAR. The airborne approach to scanning the seafloor uses a green wavelength […]
What types of sensors are used in underwater navigation and exploration? (Part 1 of 2)
Unlike land or airborne vehicles that can use radar and cameras to locate and identify objects underwater navigation and exploration present greater challenges. If underwater visibility is good, cameras provide a good source of information. Increasing resolution and the number of cameras are among the improvements that have been made in the recent past to […]
