by Edward E. Herceg, VP and CTO, Alliance Sensors Group A 4-20 mA current loop is a very common method to convey the sensor data acquired for analog sensor data transmission. Sensors or transducers are usually designed to measure a range of values of the measured parameter, known as the measurand. The measureand value must […]
Current Sensor
Electronics that operate in extreme heat to 800°C
Extreme environments require electronic systems capable of surviving beyond the MIL-STD operating temperature range of -55°C to +125°C. This FAQ series will go to extremes and look at super hot electronics (up to 800°C) and cryogenic electronics. Part one of this series looks at electronics that operate in extreme heat. Part two will look at […]
Kelvin 4-Wire sensing solves the “IR Drop” problem
Novice engineers usually don’t learn about this problem and its solution in school, but “practicing” ones learn about it soon enough! Problem: I need to determine the change in resistance of a low-resistance sensor located many meters away. My plan was simply to apply a known voltage across the thin-wire sensor leads and measure the […]
3.3-V current sensor now available for ADC and microprocessor-based power systems
ACIENNA announced that their MCx1101 family of current sensors now supports 3.3-volt mΩ applications. These highly accurate, wide bandwidth AMR-based current sensors are now available for a wide range of ADC and microprocessor-based power systems and applications. The MCx1101 are fully integrated, bi-directional current sensors that offer much higher DC accuracy and dynamic range compared […]
What’s new in magnetic sensors?
At Sensors Expo, Wayne Seto, Senior Director of Product Marketing from Crocus Technology, discusses the company’s tunnel magnetoresistance (TMR) magnetic sensing technology. For sensing, TMR is used in number of different applications. Wayne demonstrated several digital latches with omnipolar (CT832DM), bipolar (CT852AN), unipolar (CT832EK, CT832BV, CT832SK and CT811DK) and analog (CT834DR) magnetics. For omnipolar sensing […]
Bidirectional power-switching solution is one of the industry’s smallest
TE Connectivity has released an additional size for the KILOVAC current-sensing [KCS] high-voltage contactors. The KILOVAC KCS01 contactor is a compact power-switching solution with an integrated current sensor and current trip function. These contactors are suited for applications in harsh military and commercial electric vehicles, power distribution, energy storage and battery storage systems. For more […]
Clamp AC current sensors handle 600 A
TDK Corporation has expanded its CCT series of clamp AC current sensors with a new 600 A type. The lineup of TDK current sensors is now positioned to meet the high-current sensing needs of energy management systems (EMS) for buildings, factories, stores and communities. The new CCT406393-600-36 current sensor has a clamp inner diameter of […]
IC Senses Power and has Configurable Outputs
At Sensors Expo 2015 in Long Beach, CA, John Austin, senior product marketing manager with from the Analog and Interface Products Division of Microchip Technology explains the capabilities of the PAC1921, a high-side current/power sensor with a configurable analog output and a 2-wire digital bus. A evaluation board (part # ADM00592) is available. For […]
Dual Hall-effect Sensor Addresses Automotive Applications and More
When automotive engineers need a contactless sensor for measurements such as throttle position, pedal position and exhaust gas recirculation (EGR) position, Hall-effect technology is a frequent choice. With the HAR 24xy linear Hall-effect sensor family, Micronas integrates two automotive-qualified die into an ultra-thin (<1 mm) TSSOP14-1 package. The two stacked die enable high-precision redundant measurements and […]
Compact 3-Wire Direct Current Sensor
Complementing its existing DLT Series of 4-–20 mA current output sensors, NK Technologies’ DT Series 3-Wire Current Transducer provides industry standard outputs of 0-5 or 0-10 VDC proportional to the direct current. The sensors accuracy is ±1% of full scale and it is offered in 0-50A and 0-100A ranges. With its 3.3-in (83.8 mm) x […]
