- #1
spid3rx
- 15
- 0
Hello all,
I've been trying to measure the resistance of a pin, which the supplier spec at around 15mohms.
I am using the hp 34401 multimeter with the 4 wire method to do the measurement. Its seems to me that when I probe the tip and the base of the pin, the resistance value is not consistent with multiple tries. The resistance value will somehow drop gradually if I probe it for a longer time. I want to know why?
so I tried connect the total of 6 pins in series so that the resistance value will be 90mohms in theory, I can get a much steady value, but it will drop as time goes by. I want to know why? is it the due to the low resistance nature? or there is some reason behind like thermal affecting it ?
the probing method is by using jig, not by hand to probe (to prevent inconsistency.)
I've been trying to measure the resistance of a pin, which the supplier spec at around 15mohms.
I am using the hp 34401 multimeter with the 4 wire method to do the measurement. Its seems to me that when I probe the tip and the base of the pin, the resistance value is not consistent with multiple tries. The resistance value will somehow drop gradually if I probe it for a longer time. I want to know why?
so I tried connect the total of 6 pins in series so that the resistance value will be 90mohms in theory, I can get a much steady value, but it will drop as time goes by. I want to know why? is it the due to the low resistance nature? or there is some reason behind like thermal affecting it ?
the probing method is by using jig, not by hand to probe (to prevent inconsistency.)