Both negative temperature coefficient (NTC) and positive temperature coefficient (PTC) thermistors’ values change as a result of temperature but impact their use differently. For NTC thermistors, as temperature increases, the resistance drops from high to low and allows current to pass through. In a circuit, they can limit in-rush current by self-heating when current is […]
Temperature
How to design an effective telehealth system
By Marcel Consée, Mouser Electronics Healthcare can be deeply personal, and direct contact between patients and medical personnel remains vital. However, taking the relationship between doctors and nurses out of the equation can sometimes make sense. Medical crises such as the global COVID-19 pandemic accelerate the adoption of telehealth methods, even though the original idea […]
How can thousands of wireless sensors be deployed without requiring battery maintenance?
Wireless applications that need continuous monitoring to save energy, detect unsafe or other avoidable conditions and need to avoid creating serious maintenance issues are prime candidates for energy harvesting. Steam trap monitoring provides an excellent example of this type of batteryless sensing. Roughly 20% of the steam leaving a typical facility’s central boiler plant in space […]
LVDT signal conditioner improves sensor performance over large temperature swings
NewTek Sensor Solutions introduces a new series of Difference/Sum LVDT Signal Conditioners that improve a sensor’s performance during large temperature variations. By measuring the difference of the output over the sum (S1-S2)/(S1+S2), the NTC-6000-DS Quick-Cal LVDT Signal Conditioner compensates for changes in resistance in copper windings due to temperature fluctuations. As a result, the Ratiometric […]
Humidity sensor ICs feature low drift in harsh conditions
Texas Instruments introduced the first devices in a new family of humidity sensors that provide the industry’s highest reliability and accuracy and the lowest power consumption – along with built-in protection of sensing elements. The HDC3020 and HDC3020-Q1 will allow engineers to create more reliable industrial and automotive systems that withstand potential damage caused by moisture, […]
Digital sensors designed for analyzing liquid properties
Process plants typically use a multitude of sensors, each of which is normally connected to a transmitter. Older sensor technologies use analog signals to communicate with transmitters, but more modern models employ digital technology to improve accuracy, ease calibration, simplify troubleshooting, and reduce required maintenance. Endress+Hauser Memosens technology converts the measured value to a digital […]
The challenge of temperature measurement and sensor calibration, Part 3
Temperature is a widely measured real-world physical variable, but achieving credible results is harder than it seems, even for a simple device such as a kitchen oven. While many temperature-related measurements require high accuracy, precision, and repeatability – let’s say, to better than 1⁰C – many others do not, yet still bring challenges. Consider the […]
The challenge of temperature measurement and sensor calibration, Part 2
Temperature is a widely measured real-world physical variable, but achieving credible results is harder than it seems, even for a simple device such as a kitchen oven. What is temperature, anyway? While we all “know” intuitively what temperature is, actually defining and calibrating its readings is a complicated discussion. A fundamentalist approach is to go […]
The challenge of temperature measurement and sensor calibration, Part 1
Temperature is a widely measured real-world physical variable, but achieving credible results is harder than it seems, even for a simple device such as a kitchen oven. Calibration of a sensor and its associated electronics channel before making critical measurements or monitoring system performance is a common requirement in many situations. In some cases, it’s […]
How can environmental monitoring be improved?
With its recently announced Exo Sense Pi, Sfera Labs s.r.l. provides its answer to this question. It is a multi-sensor module with the Raspberry Pi 4 as its computing core. Offering specialized sensors and interfaces, the system provides easy and versatile integration with wide communication protocols support. Sensors for the Exo Sense Pi include: temperature […]
