Tech Briefs Magazine - May 2022 - PIT-7

PIT Edmund Optics Ad 0522.qxp_1/2 Page Vertical 4/12/22 1:19 PM Page
The FLIR Neutrino SWaP SX8 (Image: Teledyne FLIR)
ter Weibull distribution representing the failure rate versus
time is shown below.
1
F(t) =
t
e
Shape Parameter:
LifetimeParameter:
The MTTF, defined as the time at which 50 percent of units
in the population will have failed, can be calculated from a
sample of units using statistical analysis software. This methodology
is now used by the majority of cryocooler manufacturers,
however many report the lifetime parameter of its distribution
(63 percent failure) rather than the true MTTF (50 percent
failure). Because this method accounts for wear out of the mechanical
coolers, it provides a better estimate of its true useful
lifetime. Teledyne FLIR estimates cryocooler lifetime by fitting
life-test data to a Weibull distribution and calculating the MTTF
(50% failure) point of the population.
While cryocooler MTTF inputs are helpful to establish IR
cryocooled system reliability, there is an important caveat.
Cryocoolers can be designed in as a factory-replaceable component
within the system. A worn-out cryocooler can be replaced,
meaning the IR system should be seen as serviceable, multiple
times if necessary, thereby offering an extended infrared system
operational life.
Linear Cryocooling Going Forward
Linear cryocoolers have become the most common cooler
type for newer systems due to their significantly longer lifetimes
and lower exported vibration. For modern linear coolers,
lifetimes of 20,000 to 30,000 hours are becoming expected.
For example, the Teledyne FLIR FL-100 linear cryocooler has
an approximate MTTF of 27,000 hours and with ongoing product
improvement is targeted to surpass 30,000 hours.
This article was written by Julie Moreira, Principal Systems Design
Engineer & Tech Lead; and Ted Conrad, Sr. Principal Cryocooler
Engineer, Teledyne FLIR (Wilsonville, OR). For more information,
visit http://info.hotims.com/82321-220.
Photonics & Imaging Technology, May 2022
May 17-19, 2022 | Booth 121
Visit us at
t
Free Info at http://info.hotims.com/82321-739
7
PIT Imaging Feature 0522_1.indd 7
Cov
ToC
4/18/22 12:13 PM
http://info.hotims.com/82321-739 http://info.hotims.com/82321-220 http://info.hotims.com/82321-809

Tech Briefs Magazine - May 2022

Table of Contents for the Digital Edition of Tech Briefs Magazine - May 2022

Tech Briefs Magazine - May 2022 - Intro
Tech Briefs Magazine - May 2022 - Sponsor
Tech Briefs Magazine - May 2022 - Cov1
Tech Briefs Magazine - May 2022 - Cov2
Tech Briefs Magazine - May 2022 - 1
Tech Briefs Magazine - May 2022 - 2
Tech Briefs Magazine - May 2022 - 3
Tech Briefs Magazine - May 2022 - 4
Tech Briefs Magazine - May 2022 - 5
Tech Briefs Magazine - May 2022 - 6
Tech Briefs Magazine - May 2022 - 7
Tech Briefs Magazine - May 2022 - 8
Tech Briefs Magazine - May 2022 - 9
Tech Briefs Magazine - May 2022 - 10
Tech Briefs Magazine - May 2022 - 11
Tech Briefs Magazine - May 2022 - 12
Tech Briefs Magazine - May 2022 - 13
Tech Briefs Magazine - May 2022 - 14
Tech Briefs Magazine - May 2022 - 15
Tech Briefs Magazine - May 2022 - 16
Tech Briefs Magazine - May 2022 - 17
Tech Briefs Magazine - May 2022 - 18
Tech Briefs Magazine - May 2022 - 19
Tech Briefs Magazine - May 2022 - 20
Tech Briefs Magazine - May 2022 - 21
Tech Briefs Magazine - May 2022 - 22
Tech Briefs Magazine - May 2022 - 23
Tech Briefs Magazine - May 2022 - 24
Tech Briefs Magazine - May 2022 - 25
Tech Briefs Magazine - May 2022 - 26
Tech Briefs Magazine - May 2022 - 27
Tech Briefs Magazine - May 2022 - 28
Tech Briefs Magazine - May 2022 - 29
Tech Briefs Magazine - May 2022 - 30
Tech Briefs Magazine - May 2022 - 31
Tech Briefs Magazine - May 2022 - 32
Tech Briefs Magazine - May 2022 - 33
Tech Briefs Magazine - May 2022 - 34
Tech Briefs Magazine - May 2022 - 35
Tech Briefs Magazine - May 2022 - 36
Tech Briefs Magazine - May 2022 - 37
Tech Briefs Magazine - May 2022 - 38
Tech Briefs Magazine - May 2022 - 39
Tech Briefs Magazine - May 2022 - 40
Tech Briefs Magazine - May 2022 - 41
Tech Briefs Magazine - May 2022 - 42
Tech Briefs Magazine - May 2022 - 43
Tech Briefs Magazine - May 2022 - 44
Tech Briefs Magazine - May 2022 - 45
Tech Briefs Magazine - May 2022 - 46
Tech Briefs Magazine - May 2022 - 47
Tech Briefs Magazine - May 2022 - 48
Tech Briefs Magazine - May 2022 - 49
Tech Briefs Magazine - May 2022 - 50
Tech Briefs Magazine - May 2022 - 51
Tech Briefs Magazine - May 2022 - 52
Tech Briefs Magazine - May 2022 - 53
Tech Briefs Magazine - May 2022 - 54
Tech Briefs Magazine - May 2022 - 55
Tech Briefs Magazine - May 2022 - 56
Tech Briefs Magazine - May 2022 - 57
Tech Briefs Magazine - May 2022 - 58
Tech Briefs Magazine - May 2022 - 59
Tech Briefs Magazine - May 2022 - 60
Tech Briefs Magazine - May 2022 - Cov3
Tech Briefs Magazine - May 2022 - Cov4
Tech Briefs Magazine - May 2022 - PIT-Cov1
Tech Briefs Magazine - May 2022 - PIT-Cov2
Tech Briefs Magazine - May 2022 - PIT-1
Tech Briefs Magazine - May 2022 - PIT-2
Tech Briefs Magazine - May 2022 - PIT-3
Tech Briefs Magazine - May 2022 - PIT-4
Tech Briefs Magazine - May 2022 - PIT-5
Tech Briefs Magazine - May 2022 - PIT-6
Tech Briefs Magazine - May 2022 - PIT-7
Tech Briefs Magazine - May 2022 - PIT-8
Tech Briefs Magazine - May 2022 - PIT-9
Tech Briefs Magazine - May 2022 - PIT-10
Tech Briefs Magazine - May 2022 - PIT-11
Tech Briefs Magazine - May 2022 - PIT-12
Tech Briefs Magazine - May 2022 - PIT-13
Tech Briefs Magazine - May 2022 - PIT-14
Tech Briefs Magazine - May 2022 - PIT-15
Tech Briefs Magazine - May 2022 - PIT-16
Tech Briefs Magazine - May 2022 - PIT-17
Tech Briefs Magazine - May 2022 - PIT-18
Tech Briefs Magazine - May 2022 - PIT-19
Tech Briefs Magazine - May 2022 - PIT-20
Tech Briefs Magazine - May 2022 - PIT-21
Tech Briefs Magazine - May 2022 - PIT-22
Tech Briefs Magazine - May 2022 - PIT-23
Tech Briefs Magazine - May 2022 - PIT-24
Tech Briefs Magazine - May 2022 - PIT-25
Tech Briefs Magazine - May 2022 - PIT-26
Tech Briefs Magazine - May 2022 - PIT-27
Tech Briefs Magazine - May 2022 - PIT-28
Tech Briefs Magazine - May 2022 - PIT-Cov3
Tech Briefs Magazine - May 2022 - PIT-Cov4
Tech Briefs Magazine - May 2022 - BET-Cov1a
Tech Briefs Magazine - May 2022 - BET-Cov1b
Tech Briefs Magazine - May 2022 - BET-Cov1
Tech Briefs Magazine - May 2022 - BET-Cov2
Tech Briefs Magazine - May 2022 - BET-1
Tech Briefs Magazine - May 2022 - BET-2
Tech Briefs Magazine - May 2022 - BET-3
Tech Briefs Magazine - May 2022 - BET-4
Tech Briefs Magazine - May 2022 - BET-5
Tech Briefs Magazine - May 2022 - BET-6
Tech Briefs Magazine - May 2022 - BET-7
Tech Briefs Magazine - May 2022 - BET-8
Tech Briefs Magazine - May 2022 - BET-9
Tech Briefs Magazine - May 2022 - BET-10
Tech Briefs Magazine - May 2022 - BET-11
Tech Briefs Magazine - May 2022 - BET-12
Tech Briefs Magazine - May 2022 - BET-13
Tech Briefs Magazine - May 2022 - BET-14
Tech Briefs Magazine - May 2022 - BET-15
Tech Briefs Magazine - May 2022 - BET-16
Tech Briefs Magazine - May 2022 - BET-17
Tech Briefs Magazine - May 2022 - BET-18
Tech Briefs Magazine - May 2022 - BET-19
Tech Briefs Magazine - May 2022 - BET-20
Tech Briefs Magazine - May 2022 - BET-21
Tech Briefs Magazine - May 2022 - BET-22
Tech Briefs Magazine - May 2022 - BET-23
Tech Briefs Magazine - May 2022 - BET-24
Tech Briefs Magazine - May 2022 - BET-25
Tech Briefs Magazine - May 2022 - BET-26
Tech Briefs Magazine - May 2022 - BET-27
Tech Briefs Magazine - May 2022 - BET-Cov3
https://www.nxtbook.com/smg/techbriefs/22TB08
https://www.nxtbook.com/smg/techbriefs/22TB07
https://www.nxtbook.com/smg/techbriefs/22TB06
https://www.nxtbook.com/smg/techbriefs/22TB05-P
https://www.nxtbook.com/smg/techbriefs/22TB05-D
https://www.nxtbook.com/smg/techbriefs/22TB04
https://www.nxtbook.com/smg/techbriefs/22TB03
https://www.nxtbook.com/smg/techbriefs/22TB02
https://www.nxtbook.com/smg/techbriefs/22TB01
https://www.nxtbook.com/smg/techbriefs/21TB12
https://www.nxtbook.com/smg/techbriefs/21TB11
https://www.nxtbook.com/smg/techbriefs/21TB10
https://www.nxtbook.com/smg/techbriefs/21TB09
https://www.nxtbook.com/smg/techbriefs/21TB08
https://www.nxtbook.com/smg/techbriefs/21TB07
https://www.nxtbook.com/smg/techbriefs/21TB06
https://www.nxtbook.com/smg/techbriefs/21TB05
https://www.nxtbook.com/smg/techbriefs/21TB04
https://www.nxtbook.com/smg/techbriefs/21BT03
https://www.nxtbook.com/smg/techbriefs/21TB02
https://www.nxtbookmedia.com