When sensors that detect the five senses, hearing, sight, feeling, smell, and taste, are discussed, the one that usually gets mentioned the least is taste. Electronic ears, eyes, touch, and noses have far more available products than electronic tongues – but that could change. Like many sensors, the underlying technology for an electronic tongue (or […]
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What are the mathematics that enable sensor fusion?
The mathematics that enable sensor fusion include probabilistic modeling and statistical estimation using Bayesian inference and techniques like particle filters, Kalman filters, and α-β-γ filters, which allow for combining data from multiple sensors while accounting for noise and uncertainty to produce a more accurate overall picture of a system or environment. Neural networks (NNs) are […]
How does fusion timing impact sensors?
Today with LiDAR included as one of the potential sensing technologies, low-level fusion still seems to be a popular design approach.
What is a Ting sensor?
While the fires were still spreading in Los Angeles, investigators were busy exploring possible reasons for the fires and looking for indicators that could have provided more advanced warnings. Sensors always play an essential role in any advanced or real-time warning system. The more obvious sensor requirements/possibilities for wildfires include: Wind direction and speed Water […]
What is negative temperature coefficient?
A negative temperature coefficient (NTC) refers to any physical value that decreases as the temperature increases or vice versa. In electronics, NTC usually refers to a material’s decreasing resistance as the temperature rises. This article examines how NTC device performance is quantified and compares with other technologies like resistance temperature detectors (RTDs) and positive temperature […]
What is a balometer and what does it do?
To ensure and verify the efficient airflow in the ducts and the optimum distribution (balance) of airflow in a heating, ventilation, and air conditioning (HVAC) system, a technician would use a balometer – a type of airflow meter. This tool/instrument measures several airflow parameters from diffusers and grilles. With this data, the HVAC technician can […]
When are signal conditioners not needed with sensors?
Signal conditioning is necessary in most sensor applications, but there are exceptions. This article discusses those exceptions and reviews sensor technology, system design, and operational considerations where signal conditioning may be unnecessary and expensive. Sensing is all about the output signal. External signal conditioners are not needed when signal conditioning is integrated into the measurement […]
FAQ on optical proximity sensing: part 2
A light source and photosensor combine for effective, reliable, non-contact proximity detection of nearby objects. Part 1 of this article looked at the principles and three basic approaches to optical proximity sensing, also called photoelectric sensing. This part looks at physical implementations of the system, input/output specifics, and other considerations. Q: Is this a relatively […]
FAQ on optical proximity sensing: part 1
A light source and photosensor combine for effective, reliable, non-contact proximity detection of nearby objects. Non-contact proximity sensors detect the presence or absence of nearby objects (including animals and people) using basic physics phenomena such as capacitive and inductive electromagnetic fields, light, or sound. Many techniques are used for this sensing, each offering different operational […]
How will neurotechnology and sensing impact automotive: part 2
Neuro data provides a level of insight into the driver’s condition and cognitive state that is not possible with a driver-facing camera.
