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Q: How often should my equipment make measurements? A: This question often arises when people draft plans to automatically measure a physical quantity such as temperature, pressure, acidity, liquid level, and so on. You can approach this problem in several ways, from an educated guess to a mathematical analysis of your system. The examples that follow use temperature measurements because people measure temperature more than any other physical characteristic.
By Jon Titus
Q: Should I put some sort of circuit between my sensor and an analog-to-digital converter?
A:Yes. You probably need some signal conditioning. The explanation below goes on for a bit, but stay with it and you'll understand what you need and why you need it.
Before you make any connections, get the electrical specifications for the analog-to-digital converter (ADC) and for the sensor or sensors in your system. Let's assume the data-acquisition module uses a Maxim Integrated Products MAX197 12-bit ADC. Read more »
The reactor uses a directed 60-GHz source, which may require far less power to observe the same reactivity profiles.
NASA’s Jet Propulsion Laboratory, Pasadena, California
In industrial synthetic chemistry laboratories, reactions are generally carried out using batch-mode methodologies, stepwise reactions, and purifications to generate a final product. Each step has an associated yield of both the reaction itself and of the final purification that is largely dependent on the procedure being used, and the scientist carrying out the procedure. Read more »
The MIL-STD-1553 serial data bus is widely used for control purposes in avionics, aircraft and space systems. Forty years since its release, 1553 is evolving from traditional integrated circuits (IC) to intellectual property (IP) cores integrated with Field Programmable Gate Array (FPGA) logic. The history of MIL-STD-1553, the advantages and requirements of 1553 IP cores compared to standard ICs, and IP core design best practices are discussed in this white paper.
The medical devices industry is experiencing an evolutionary transformation in which diagnostic and therapeutic treatments are increasingly personalized, with patient-specific customization aligned to individual patient conditions, improving therapeutic benefits and in most cases, lowering overall costs.
Authentication and authorization issues are a classic mix of the human element and poor implementation. If you have been to a hospital lately, your eyes quickly are drawn to the amount of identification and security cards attached to each employee. Establishing identity is clearly a complex problem...
TE Medical’s Vitaliy Epshteyn will discuss recent trends in the medical device industry towards customer-driven electronics. He will share cutting edge technologies to support these trends, and present case studies of product innovations in Ultrasound, Surgical, and Interventional applications. Many of these innovations enable device miniaturization while enhancing overall functionality. Evolving medical devices into miniature form is vital to the future of patient care. As devices shrink in size, the procedures become less-invasive, allowing patients to heal more quickly. Read more »
The Particle Tracing Module extends the functionality of the COMSOL Multiphysics environment for computing the trajectory of particles in fluids and electromagnetic fields, including particle-particle, particle-field, and fluid-particle interactions. The particles can be subjected to a wide variety of forces, such as electrical, collisional, drag, and thermophoretic forces. This webinar introduces particle tracing for applications such as erosion, etching, mixing, filtration, mass spectrometry, ion optics, and beam physics. The webinar includes a demonstration and will end with a Q&A session.
Sponsored by Proto Labs
What is Liquid Silicone Rubber? Why use this material in your application? What are some application examples? Are there any drawbacks to LSR?