发明授权
US4344494A Measuring system having a balance with digital display having digit
appearance modifying circuit
失效
与具有数字外观修改电路的数字显示器具有平衡的测量系统
- 专利标题： Measuring system having a balance with digital display having digit appearance modifying circuit
- 专利标题（中）： 与具有数字外观修改电路的数字显示器具有平衡的测量系统
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申请号： US146399申请日： 1980-05-05
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公开(公告)号： US4344494A公开(公告)日： 1982-08-17
- 发明人: Erich Knothe , Christoph Berg , Franz-Josef Melcher
- 申请人： Erich Knothe , Christoph Berg , Franz-Josef Melcher
- 申请人地址： DEX Goettingen
- 专利权人： Sartorius GmbH
- 当前专利权人： Sartorius GmbH
- 当前专利权人地址： DEX Goettingen
- 优先权： DEX2718769 19770427
- 主分类号： G01G23/37
- IPC分类号： G01G23/37 ; G01G3/14
摘要：
A balance is provided with a digital readout, a display device and transfer device for transferring measured values to the display device at a selected frequency. The frequency can be varied. An accessory circuit is provided for modifying at least the last digit appearing on the display device in response to an arrest criterion or a condition of the balance, such as an open measuring chamber or position of a draft shield. The criterion can be developed from comparing successive measured values.
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