发明名称 |
SENSING INSTRUMENT |
摘要 |
A sensing instrument includes: a reference sensor including a reference piezoelectric resonator not adsorbing a substance to be sensed; a reference oscillator circuit oscillating the reference piezoelectric resonator; a measuring unit receiving an oscillation output of a sensing oscillator circuit and an oscillation output of the reference oscillator circuit in a time-series manner to measure frequencies of the oscillation outputs of the oscillator circuits; and a data creator creating time-series data of a difference between a frequency in a sensing sensor and a frequency in the reference sensor, based on the frequencies of the oscillation outputs of the oscillator circuits obtained by the measuring unit. Therefore, a frequency changed due to a factor other than the adsorption of the substance to be sensed is cancelled.
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申请公布号 |
US2010021346(A1) |
申请公布日期 |
2010.01.28 |
申请号 |
US20070311959 |
申请日期 |
2007.10.24 |
申请人 |
NIHON DEMPA KOGYO CO., LTD. |
发明人 |
WAKAMATSU SHUNICHI;KOYAMA MITSUAKI;KUKITA HIROYUKI |
分类号 |
G01N33/53;G01N5/02;H01L41/08 |
主分类号 |
G01N33/53 |
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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