DTS II Test Program Execution Speed Differences:

The following table shows the execution time comparison between the DTS VME computer and the DTS II computer for selected test program statements. All times are in msecs.

Instruction

Execution Time
DTS VME DTS II
FOR !I = 1 TO 1000  0.054  0.000731
SET VI[5] TO VOLTAGE 0V OUTPUT 1 0.076 0.0102
SET VI[8] TO OUTPUT 1 VOLTAGE 0.3V PCURRENT 1MA NCURRENT 1MA  0.148 0.0192
SET VI[8] TO OUTPUT OFF ALARM I 0.07 0.0112
SET VI[2] TO VOLTAGE 0V  0.064  0.0042
SET VI[2] TO VOLTAGE 15V  0.066  0.0042
MEASURE VI[8] CURRENT INTO C  2.674 2.079
SET CBITSB TO BITS 13  0.05  0.0032
OPEN CBITSB BITS 8  0.068 0.0032
SET MATRIX INPUT A 1  0.068 0.0032
MEASURE VM RANGE 15V INTO A  1.16 0.5842
MEASURE VM RANGE 5V AVERAGE 10  6.546 1.1832
MEASURE VM INTO A 0.596 0.0662
NULL VM RANGE 8V,.7V AVERAGE 10  2.066 1.2392
+ MEASURE VM DIFF INTO A2  2.63 1.5372
GATE ON  0.018 0.000197
SET TIMER START TO CABLE A SLOPE + RANGE LI  0.982 0.0162
SET TIMER STOP TO CABLE A SLOPE + RANGE LI 0.972 0.0152
ENABLE TIMER TIMEOUT 5MS NEGATIVE TIME DISABLED 0.332 0.0182
READ TIMER INTO A1 SET AVM TO FILTER HP300, NOBP,LP200K RESPONSE RMS DF10K"  0.074 0.0152
SET AVM TO INMAX .02V POSTMAX .02V  0.09 0.0152
WAIT 10MS  10.088 10.018
MEASURE AVM INTO A0  2.696 2.0492
DTS II Test Time Reduction – Throughput Improvement:

The DTS II will provide increased throughput in most situations. Capacity will be increased on existing testers by 15% to 30% on average. Results may vary depending on DTS users and product type. Following are the test results of a recent DTS user’s evaluation of DTS II vs DTS VME test times for five (5) devices:
Device # *Test Time
DTS VME		 *Test Time
DTS II 		 Delta Throughput Increase (%)
#01 282 ms 192 ms 90 ms 46.88
#02 640 ms 349 ms 291 ms 83.38
#03 490 ms 319 ms 171 ms 53.60
#04 980 ms 642 ms 338 ms 52.64
#05 485 ms 310 ms 175 ms 56.45
AVERAGE 575.4 362.4 ms 213 ms 58.77

How to Calculate Throughput Increase:

Divide the DTS VME Test Time by DTS II Test time. This will provide the amount of devices tested on the DTS II in the same time as it takes to test one (1) device on the DTS VME computer.

Example: DTS VME Test Time (7 seconds) ÷ DTS II Test Time (5 seconds) = 1.4

In this example, one can test 1.4 devices on the DTS II in the same time as it takes to test 1 device on the DTS VME.

1.4 – 1.00 = .4 device throughput increase
.4 x 100 = 40% throughput increase

Increase Throughput

 

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