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- Industrial Sensing Fundamentals – Back to the Basics: NPN vs PNP
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Category Archives: Capacitive Sensors
Similar to inductive sensors, capacitive sensors are available in two basic versions. The first type is the flush or shielded or embeddable version however with capacitive sensors they are sometimes referred to as object detection sensors. The second type is … Continue reading
Capacitive proximity sensors are non-contact devices that can detect the presence or absence of virtually any object regardless of material. They utilize the electrical property of capacitance and the change of capacitance based on a change in the electrical field … Continue reading
On Sensortech, we have posted several entries about the trend toward miniature sensors including, Let’s Get Small: The Drive Toward Miniaturization and Trending Now: Miniature Sensors. At the end of January Balluff attended SLAS in San Diego, CA and saw this trend firsthand. Automation … Continue reading
In a previous blog post we discussed miniature capacitive sensors and their use for precision and small-part sensing. Here we will discuss the different sensing modes available with separately amplified miniature capacitive sensors. Standard Switching Mode This is the most … Continue reading
As discussed in a previous blog post, miniature sensors are an ongoing trend in the market as manufacturing and equipment requirements continue to demand smaller sensor size due to either space limitations and/or weight considerations. However, size and weight aren’t … Continue reading
If someone says proximity sensor, what is the first thing that comes to mind? My guess is inductive and justly so because they are the most used sensor in automation today. There are other sensing technologies that use the term … Continue reading
In liquid level sensing applications, capacitive sensors can be mounted directly in contact with the medium or indirectly with no contact to the medium. Containers made of metal or very thick non-metallic tank walls (more than 1″) typically require mounting … Continue reading
As I discussed in my last blog post, there is a need for miniature, precision sensors. However, finding the right solution for a particular application can be a difficult process. Since every sensor technology has its own strengths and weaknesses, … Continue reading