E-1
Appendix E Maximum Surface
Temperature of Transducers
According to the requirements of the section 42.3 in the standard IEC 60601-2-37: 2007,
the transducer surface temperature has been tested in two kinds of conditions: the
transducer suspended in still air or transducer contacting human-tissue mimicking
material. The calculation of the expanded uncertainty is based on the ISO Guide to the
Expression of uncertainty in measurement. Three transducer samples have been tested
and the confidence coefficient is at 95%, the value of t.975 is 4.30.
* The measurement data were obtained under the test conditions employed at
Mindray.
Transducer model Maximum surface temperature
(°C)
*1
Contacting TMM
Maximum surface temperature
(°C)
*1
Suspending in air
35C50EB
38.87±0.40 34.97±0.31
65EC10EB
31.50±0.37 31.40±0.37
75L38EB
38.57±0.47 34.20±0.57
65C15EA
38.03±0.47 31.93±0.40
75L60EA
39.23±0.40 35.40±0.37
35C20EA
36.67 ±0.40 30.90±0.37
*1: Values following the "
±" mark indicate the expanded uncertainty with a confidence
level of 95%, t
.975
= 4.30.
To Next Page
Loading...
Need help?
General
