Jeff Shepard

California

Analyst and Writer at Freelance

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Articles

What is the math of negative feedback and how is it used to ensure stability?

3 days ago | microcontrollertips.com | Jeff Shepard

Negative feedback can create a control system where the output of a process is used to counteract any deviations from a desired set point, effectively “correcting” the system, bringing it back to equilibrium, and maintaining stable operation. It’s used in a variety of applications, including voltage regulation, temperature controllers, audio amplifiers, and operational amplifiers.
What tools are available for calibrating sensors?

4 days ago | designworldonline.com | Jeff Shepard |Jeff Shepard

Tools used for calibrating sensors range from basic multimeters and multi-product calibrators to application-specific tools, like pressure calibrators, calibration baths, and infrared blackbody calibrators, depending on the type of sensor and the measurement requirements. As sensors get more sophisticated and precise, so do the tools used to calibrate them. Sensors require calibration to deliver consistent accuracy.
What tools are available for calibrating sensors?

1 week ago | sensortips.com | Jeff Shepard

Tools used for calibrating sensors range from basic multimeters and multi-product calibrators to application-specific tools, like pressure calibrators, calibration baths, and infrared blackbody calibrators, depending on the type of sensor and the measurement requirements. As sensors get more sophisticated and precise, so do the tools used to calibrate them. Sensors require calibration to deliver consistent accuracy.
What are simple ways to improve sensor performance?

2 weeks ago | designworldonline.com | Jeff Shepard

Although improving a sensor’s actual performance is not usually possible, with proper selection, system design, and integration, improving sensor performance at the system level is very possible. Tools available for sensor performance optimization include selection, placement, operation, and signal conditioning/processing. It begins by selecting a sensor with the appropriate range, resolution, sensitivity, accuracy, response time, and other performance specifications.
What are simple ways to improve sensor performance?

2 weeks ago | sensortips.com | Jeff Shepard

Although improving a sensor’s actual performance is not usually possible, with proper selection, system design, and integration, improving sensor performance at the system level is very possible. Tools available for sensor performance optimization include selection, placement, operation, and signal conditioning/processing. It begins by selecting a sensor with the appropriate range, resolution, sensitivity, accuracy, response time, and other performance specifications.
What’s the difference between Maxwell’s equations and Maxwell’s relations?

3 weeks ago | designworldonline.com | Jeff Shepard

Maxwell’s equations are fundamental tools for electric and magnetic fields, while Maxwell’s relations focus on thermodynamic quantities like temperature, pressure, volume, and entropy. For more on Maxwell’s equations, see “What are the fundamentals of Maxwell’s equations and how do they relate to TENGs?”Maxwell’s relations give designers a powerful tool for analyzing thermodynamic systems like internal combustion engines or data center cooling.
What’s the difference between a VCSEL and PCSEL?

3 weeks ago | 5gtechnologyworld.com | Jeff Shepard

A vertical cavity surface-emitting laser (VCSEL) relies on a three-dimensional (3D) structure for light emission. A photonic crystal surface-emitting laser (PCSEL) incorporates a 2D photonic crystal (PhC) layer to manipulate light emission. Those structural differences lead to different performance and application possibilities. An obvious difference between the various types of semiconductor lasers is the beam patterns.
What is the HPC memory wall and how can you climb over it?

1 month ago | microcontrollertips.com | Jeff Shepard

The high-performance computing (HPC) memory wall generally refers to the growing disparity between processor speed and memory bandwidth. When processor performance outpaces memory access speeds, this creates a bottleneck in overall system performance, particularly in memory-intensive applications like artificial intelligence (AI).
When are IMDs, RCMs, or RCDs required in EVs?

1 month ago | evengineeringonline.com | Jeff Shepard

Insulation monitoring devices (IMDs) are used in ungrounded high-voltage applications to ensure electrical safety, prevent accidents, and ensure reliable operation by continuously monitoring insulation resistance for early fault prediction. A residual current monitor (RCM) is the corresponding device used in grounded systems. In contrast, residual current devices (RCDs) protect against hazards like fires or electrocution in ac-powered applications like electric vehicle (EV) chargers.
What kinematic equations are important for industrial robots?

1 month ago | designworldonline.com | Jeff Shepard |Jeff Shepard

A kinematic model is a mathematical representation of a robot’s motion that focuses on the geometric relationships between elements and ignores external forces that affect motion. Kinematic models are used for planning and controlling the paths of industrial robots. Forward kinematics determines the current position and orientation of the end effector based on the angles of each joint in the robot arm.