发明名称 |
Bindery caliper |
摘要 |
A bindery caliper is provided in the form of a non-contacting capacitive change measuring device capable of determining the page count of a multi-page stack with high sensitivity. The capacitance of a pair of plates between which the stack of pages is disposed sets the frequency of an oscillator which is sampled for a predetermined time period. The sampled pulses are counted and compared to a standard within tolerances, and the comparison determines whether the page count is satisfactory. Means for updating the standard value on the basis of accumulated measurements is also provided.
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申请公布号 |
US4170346(A) |
申请公布日期 |
1979.10.09 |
申请号 |
US19770848262 |
申请日期 |
1977.11.03 |
申请人 |
HARRIS CORP |
发明人 |
JACKSON, DALE H;MURRAY, ROBERT R |
分类号 |
B42C1/12;B42C19/00;G06M9/00 |
主分类号 |
B42C1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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