Thermal EMF Error in Current Sense Resistors

Whenever the junction of two dissimilar metals is heated, there is a voltage generated across the junction, the magnitude and polarity of which depends upon the specific metals and the amount of heat applied and is expressed in microvolts per degree centigrade.This phenomenon is known as the Seebeck... More

Whenever the junction of two dissimilar metals is heated, there is a voltage generated across the junction, the magnitude and polarity of which depends upon the specific metals and the amount of heat applied and is expressed in microvolts per degree centigrade.This phenomenon is known as the Seebeck or thermocouple effect and occurs in resistors at the resistor element/ termination junction. It appears as a battery in the circuit and is a significant source of error in low level DC measurements. This demonstration measures and compares the Thermal EMF error, in both magnitude and decay time, of four different resistor technologies. Less

June 8, 2012
|
117 Views
Share:

How-to-Install-Push-Pin-Heat-Sinks
ATS has expanded its line of push pin heat sinks, now providing straight fin, cross cut, and maxiFLO...
1 Views
Virtual-Serial-Port-vSP-Demo-from-Laird
Virtual serial port (vSP) is a custom service that allows bi-directional data exchange betw...
16 Views
Hangout-on-Air-with-Digi-Key-and-TE-Connectivity
Digi-Key's Josh Jimenez is joined by Barry Brents from TE to discuss circuit protec...
57 Views
NMBs-High-Power-Cooling-Fans-R-and-F-Series
The new R and F Series of high power cooling fans achieve new benchmarks for airflow...
36 Views
Vane-Axial-Self-Levitating-from-Orion-Fans
Orion's Vane Axial fans create maximum airflow in high static pressure environments. Avail...
31 Views
Power-Distribution-Unit-and-Fan-Tray-Demo
See Orion Fans Power Distribution Unit software in use controlling and monitoring 2 fan tra...
13 Views
Panasonic-Electronic-Components-We-Power-your-Next-Dimension
You are the visionaries. The engineers. The designers. The Archite...
34 Views
NTC-Mini-Lug-Sensor
View this one-minute video to learn more about the NTC mini lug sensor from Vishay
11 Views
Demonstration-of-e-Design-program-for-Vishays-NTC-Thermistors
This short demonstration shows how using the e-Design tool will he...
24 Views
t-Global-Overview-of-Capabilities
Overview of design and manufacturing capabilities of t-Global technology.
12 Views
1- 10 of 21 videos