MIL-PRF-1/22J
Table I. Testing and Inspection.
Inspection
Method
Notes
Conditions
Symbol
Limits
Limits
Unit
Min
Max
Qualification inspection
Degradation due to
---
---
---
4021
-
---
vibration
---
6.5
---
4461
-
Loaded Q (ATR tubes)
QL
---
1.10
---
High-level VSWR
4474
-
Test condition 2
Conformance inspection,
part 1
Tuning susceptance
4482
-
b = B/Yo
---
---
Fo
0.1% MHz
0.06
Firing time
4486
3
t
---
sec
10
Arc loss
4488
3
La
---
dB
0.8
Conformance inspection,
part 2
Dielectric material strain
4101
-
---
---
---
---
Normalized conductance
4484
-
g = G/Yo
---
0.1
---
Fo
0.1% MHz
Recovery time
4471
-
t
---
10
Test condition 1
s
Conformance inspection,
part 3
Life test
---
-
Group D;
test condition 1
Type 1B35A
-
---
500
---
Hrs
Type 1B37A
-
---
500
---
Hrs
Type 6162
-
---
500
---
Hrs
Type 5864
-
---
1,000
---
Hrs
---
Life-test end points:
4488
Arc loss
3
1.0
---
La
dB
4484
Normalized conductance
-
0.1
---
g = G/Yo
---
Fo 0.1% MHz
4482
Tuning susceptance
-
---
b = B/Yo
---
0.06
Fo 0.1% MHz
4471
Recovery time
-
---
t
20
s
Test condition 1;
VSWR 10 dB
1027
Temperature cycling
-
---
---
---
---
(nonoperating)
Periodic-check tests
Temperature cycling
1027
3
---
---
---
---
Group D;
life-test end point
10 cycles (min)
NOTES:
1. For 500 hours life, the duty cycle is 0.001 at pulse width of 1.0 s. Operation at greater
than 1.0 s pulse width at 250 kw is permissible but may result in decreased life.
2.
For electrical tests, the tubes shall be mounted as shown on figure 2. A suitable gasket
shall be placed between the tube and the tube seat.
3.
This test shall be performed at least 168 hours after pumping, and at least 24 hours after
any previous discharge.
2
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