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latency between signals

Hello,

I have two signals measured every second.

When Signal_1 is below a certain value Signal_2 should/will change; and i need to measure the latency between the two.

In the table below at 11:42:13 Signal_1 is dropping below (or equal) to 49.9 and Signal_2 is following 7 second later (at 11:42:20). Signal 2 can drop to 0 or to a lower value (and i should measure the difference absolute and percentage).

Later, at 11:42:33 Signal_1 is going up above 49.8 and Signal 2 is going up again, 22 seconds later at 11:42:55

I should also monitor if Signal 2 is moving erratically without Signal_1 to be changing around the 49.8 value.

       

TimeSignal_1Signal_2Above 49.8below 49.8Latency
11:42:0450.010.911:42:04-
11:42:0550.010.911:42:05-
11:42:0850.010.911:42:08-
11:42:1050.010.811:42:10-
(A1)11:42:1349.810.8-11:42:137
11:42:1449.810.8-11:42:14
11:42:1549.810.8-11:42:15
11:42:1849.810.8-11:42:18
(A2)11:42:2049.80.0-11:42:20
11:42:2249.80.0-11:42:22
11:42:2449.80.0-11:42:24
11:42:2649.80.0-11:42:26
11:42:2849.80.0-11:42:28
11:42:3049.80.0-11:42:30
11:42:3249.80.0-11:42:32
(B1)11:42:3349.90.011:42:33-22
11:42:3449.90.011:42:34-
11:42:3649.90.011:42:36-
11:42:3949.90.011:42:39-
11:42:4049.90.011:42:40-
11:42:4249.90.011:42:42-
11:42:4349.90.011:42:43-
11:42:4649.90.011:42:46-
11:42:4949.90.011:42:49-
11:42:5249.90.011:42:52-
(B2)11:42:5549.94.711:42:55-
11:42:5649.94.711:42:56-
11:42:5949.94.711:42:59-
11:43:0249.94.711:43:02-
11:43:0349.94.711:43:03-
11:43:0549.95.211:43:05-
11:43:0849.95.211:43:08-
11:43:1049.95.211:43:10-

thank you,

Alex

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