advantest corporation TR5821, Operation Manual

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In p e r io d m e a s u r e m e n t, t h e trig g e r e r r o r is r e d u c e d to l / 1 0 n f o r a v e ra g in g
n u m b e r 1 0 n . In tim e i n t e r v al m e a s u r e m e n t, o n th e o t h e r h a n d , th e trig g e r
e r r o r is r e d u c e d t o o n ly l / \ / T 0 " f o r a v e ra g in g n u m b e r 1 0 n . T h is is b e c a u s e
th e a v e ra g in g te c h n iq u e d iff e rs fr o m t h a t f o r t h e p e r io d m e a s u r e m e n t as
s h o w n ; t h a t is, c o u n t in g is p e r f o r m e d c o n tin u o u s ly fr o m m e a s u re m e n t
s t a r t t o e n d in p e r io d m e a s u r e m e n t w h e r e a s , in tim e in te rv a l m e a s u r e m e n t,
c o u n tin g is i n t e r m i t t e n t a s s h o w n in th e fig u re o n th e p r e c e d in g p ag e a n d
a ±1 c o u n t e r r o r o c c u rs a t e a c h c o u n tin g . T h e r e f o r e , i f th e sig n al t o b e m e a ­
s u re d is v e ry s ta b le , th e a c c u r a c y is n o t im p ro v e d b y av e rag in g .
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