Latest Sensors & Instruments Technical Articles

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Introduction to Safety Light Curtains: Operation and Installation 

Introduction to Safety Light Curtains: Operation and Installation 

Light curtains serve as an invisible barrier, keeping workers out of harm's way and protecting machinery from damage. Learn about safety curtains, how they are installed, and their programmable functions.


8 Steps To Successful Predictive Maintenance Implementation (with examples)

8 Steps To Successful Predictive Maintenance Implementation (with examples)

We'll run through the eight basic steps for implementing a predictive maintenance strategy in your business to improve critical asset availability, reduced maintenance costs, and enhanced revenues over time.


Why is 4-20 mA Current Used for Industrial Analog Sensors?

Why is 4-20 mA Current Used for Industrial Analog Sensors?

Industrial analog sensor devices primarily use 0-10 volt or 4-20 milliamp. For those mA signals, learn the reasons for why the lower and upper limit standards were determined as 4 mA and 20 mA.


Introduction to Raspberry Pi: History, Hardware, and Software

Introduction to Raspberry Pi: History, Hardware, and Software

Raspberry Pi is a low-cost, educational single-board computer platform with the potential for industrial applications. In this article, we discuss the purpose of Raspberry Pi as well as its hardware and software.


Humidity Measurement Basics: Relative Humidity, Sensors, and Applications

Humidity Measurement Basics: Relative Humidity, Sensors, and Applications

Humidity control is vital in many industrial applications. We'll take a look at nine different humidity measurement technologies, how they are used, and discuss the difference between relative humidity and dew point.


Uncontrolled Machine Vision Lighting for Infrared and Robots

Uncontrolled Machine Vision Lighting for Infrared and Robots

Ambient light, reflection, and transparent objects can all cause difficulties during machine vision applications. Learn about these issues and some potential solutions to better ensure safety and quality.


End of Arm Tooling: Power Sources and Sensors

End of Arm Tooling: Power Sources and Sensors

An EOAT, located at the end of an industrial or collaborative robot arm, is entirely customizable with nearly unlimited possibilities. Learn about the five main methods of how EOATs are powered and the sensors that they use.


Introduction to Add-on Instructions for PLC Ladder Logic Programming

Introduction to Add-on Instructions for PLC Ladder Logic Programming

Learn how to take advantage of the powerful AOI feature that comes standard in Allen-Bradley / Rockwell PLCs using RSLogix 5000 and Studio 5000 Software.


Technology Differences: Stationary Robots vs Mobile Robots

Technology Differences: Stationary Robots vs Mobile Robots

Robots are no longer unanimously just "robots"—there are specific tasks and functionality of each kind. Learn about the technology differences between fixed-location robots and mobile robots and why no one robot is like another.


Thermocouple Types: Which One Is Right For You?

Thermocouple Types: Which One Is Right For You?

There are many considerations when selecting a thermocouple type. In this article, we look at the advantages, and limitations, of the eight standard thermocouples and various installation considerations.


Preventing Failures in High-Temperature Manufacturing Processes

Preventing Failures in High-Temperature Manufacturing Processes

Any machine can become a source of elevated temperature, even under regular operation. We cannot assume that temperature problems occur only based on climate conditions, and mitigation steps must be employed.


I/O Module Debate: Transistor vs. Relay Output?

I/O Module Debate: Transistor vs. Relay Output?

When selecting the right module for the right load, be sure to understand how the load resistance will affect the voltage and current of the output module terminals.


Cloud Computing and the Industrial Internet of Things

Cloud Computing and the Industrial Internet of Things

Over the last decade, cloud service providers have improved technology, particularly data security and integrity. These remain the top concern of many manufacturing businesses, but as improvements are rolled out, more and more companies are adopting cloud solutions. 


Grounding for Control Transformers

Grounding for Control Transformers

Grounding transformer connections presents its own set of challenges. This article addresses these challenges and several common configurations for control transformer grounding.


Recreating PLC Ladder Logic in an Arduino C/C++ IDE

Recreating PLC Ladder Logic in an Arduino C/C++ IDE

​​​​​​​Arduinos have been a staple in the community of makers, students, and project innovators for many years. For many using Arduino’s IDE, there can be difficulties in translating between PLC ladder rungs and text programming.


PLC Program Commands: Move and Copy Instructions

PLC Program Commands: Move and Copy Instructions

Moving data is a critical function of PLCs. In this article, we’ll talk about Move, Masked Move, Copy File, and Synchronous Copy File and show how they can be used to move individual pieces of data and entire arrays. 


Electrical Resistance Measurement Problems - What Can Go Wrong?

Electrical Resistance Measurement Problems - What Can Go Wrong?

Today’s digital multimeters (DMMs) are inexpensive, accurate, and easy to use, but sometimes a problem with the circuit or the measurement can cause incorrect readings. Learn to interpret and fix these problems.


Photoelectric Sensor Wavelengths

Photoelectric Sensor Wavelengths

Learn about the differences between red, green, infrared, and more recently, blue photoelectric sensors and how the different light spectrums can aid in varying industrial automation processes.


Collaborative Robot Cells: Simple and User-friendly Design Priorities

Collaborative Robot Cells: Simple and User-friendly Design Priorities

Learn about the common applications, programming procedures, and safety protocols of collaborative robot work cells, which are often simpler and less expensive than industrial robot work cells.  


Understanding Differences Between Power and Ground Side Switching

Understanding Differences Between Power and Ground Side Switching

Learn about power side and ground side switching and how designing these circuits to have predictable failures from the beginning helps in system maintenance and troubleshooting.