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Photoelectric

FAQ on optical proximity sensing: part 1

January 22, 2025 By Bill Schweber

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 […]

Filed Under: Featured, Frequently Asked Question (FAQ), Photoelectric, Proximity, Security Tagged With: FAQ

What really counts?

August 14, 2024 By Randy Frank

Sesame Street’s Count von Count loves to count things. However, depending on what needs to be counted, there are a variety of different techniques. Is it people, objects, steps, or? Counting people Turnstiles are commonly seen at events, fairgrounds, stadiums, arenas, amusement parks, or anywhere pedestrian counting and/or pedestrian crowd control is required. The simplest […]

Filed Under: Accelerometer, Featured, Frequently Asked Question (FAQ), Hall Effect, Photoelectric, Proximity, Time-of-Flight, Vibration Tagged With: terabee

Has interest in particulate matter sensing increased?

June 16, 2023 By Randy Frank

Traditionally, summer wildfires are associated with California and the west coast. With the recent Canadian wildfires spreading smoke and dense particulates to extensive areas in the eastern and southern U.S., monitoring outdoor particulates has become an important topic for areas of the U.S. that are not normally that interested. On June 8, the U.S. National […]

Filed Under: Featured, Frequently Asked Question (FAQ), Photoelectric Tagged With: (EPA)

Improved IDEC photoelectric sensors boost performance and capabilities

May 10, 2023 By Mike Santora

IDEC SA2E Series image

IDEC Corporation introduces the SA2E general-purpose photoelectric (PE) sensor family, in five major models, each of which improves or replaces proven SA1E products. A new ASIC, common to the entire offering, provides a significantly improved price/performance ratio, while delivering better response times and more capable detection. SA2E PE sensors are offered in five major variations: […]

Filed Under: Photoelectric Tagged With: IDEC

ProSense F18 Series 18mm round photoelectric sensors from AutomationDirect

April 21, 2023 By Mike Santora

prosense-f18 product shot on purple background

AutomationDirect has added ProSense F18 series 18mm round sensors to their extensive lineup of photoelectric sensors. The F18 series features sensing distances up to 25m, rugged PBT thermoplastic housings, and an IP67 protection rating. These general-purpose sensors are available in diffuse, diffuse with adjustable background suppression, polarized retroreflective, and through-beam sensing styles. The new ProSense […]

Filed Under: Photoelectric Tagged With: AutomationDirect

How do sensors improve home appliances? Part 1

March 12, 2023 By Randy Frank

Today’s home appliances are increasingly connected for remote monitoring and control and smarter due, in part, to numerous sensors. The sensors help even lower-end appliances implement their basic functions and, more importantly, enable smarter, top-end appliances. While sensors provide these capabilities for several home appliances, this two-part series will describe sensing functions for large appliances […]

Filed Under: Capacitive, Featured, Frequently Asked Question (FAQ), Hall Effect, Humidity, Magnetic sensor, Photoelectric, Pressure Sensor, Temperature, Vibration, weight Tagged With: Inc., littlefuse

How can sensors protect a diamond center vault?

February 17, 2023 By Randy Frank

In Belgium’s’ Antwerp Diamond District, eighty percent of the world’s rough diamonds passed through a three-square-block area.  The Diamond Squad, the world’s only specialized diamond police, provided 24-hour police surveillance and 63 video cameras monitored the district. In this area, the Antwerp Diamond Center vault was thought to be impenetrable. In addition to having a […]

Filed Under: Featured, Frequently Asked Question (FAQ), Magnetic sensor, Photoelectric, Security, Shock Tagged With: antwerp diamond center

How do sensors impact ATMs?

January 30, 2023 By Randy Frank

It’s well known that automobiles and smartphones have several sensors to improve today’s capabilities over those of previous generations. However, they are not the only products that impact consumers’ lives to do so. For example, automated teller machines (ATMs) have a surprising number and different types of sensors to perform a variety of functions. Even […]

Filed Under: Featured, Frequently Asked Question (FAQ), Humidity, Image sensing, Photoelectric, Pressure Sensor, Shock, Vibration Tagged With: diebold

What’s new in color sensing?

November 30, 2022 By Randy Frank

Advancements in color sensing technology and its increased use in industrial automation are increasing the adoption of color sensing technology across several industries. Color sensing devices are extensively used to detect the color of the surface and to monitor the color consistency in packaging, textile production and automotive applications. For example, in the packaging industry, […]

Filed Under: Featured, Frequently Asked Question (FAQ), Photoelectric, Smart cameras, Vision software Tagged With: colorsensing

New 36 sensor series from Leuze

April 18, 2022 By Mike Santora

SR36C_presence_check_02_PIC3

The accurate detection of objects requires reliable technology: Leuze has developed the new 36 sensor series exactly with this in mind: Thanks to their perfect detection performance, these sensors are suitable for the demanding requirements in intralogistics, packaging systems, and the automotive industry. They detect objects with different optical properties – even at a great distance, with vibration, […]

Filed Under: Photoelectric Tagged With: leuze

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