公开(公告)号：US4742330A

公开(公告)日：1988-05-03

申请号：US45349

申请日：1987-05-01

申请人： Joey Doernberg ,  Paul R. Gray ,  David A. Hodges

发明人： Joey Doernberg ,  Paul R. Gray ,  David A. Hodges

IPC分类号： H03M1/00 ,  H03M1/12

CPC分类号： H03M1/10 ,  H03M1/361

摘要： A flash ADC utilizes parallel weighted capacitive arrays and a resistor string to provide reference voltage intervals and an encoder for indicating the reference voltage interval wherein an input voltage lies. For an embodiment having N branches, the reference voltage intervals are subdivided into N sub-intervals and each succeeding clock cycle.

摘要翻译： 闪存ADC使用并行加权电容阵列和电阻串来提供参考电压间隔，以及用于指示输入电压所在的参考电压间隔的编码器。 对于具有N个分支的实施例，参考电压间隔被细分为N个子间隔和每个后续时钟周期。

公开(公告)号：US4129863A

公开(公告)日：1978-12-12

申请号：US838908

申请日：1977-10-03

申请人： Paul R. Gray ,  James L. McCreary ,  David A. Hodges

发明人： Paul R. Gray ,  James L. McCreary ,  David A. Hodges

IPC分类号： H03M1/00 ,  H03K13/02

CPC分类号： H03M1/00 ,  H03M1/44 ,  H03M1/46

摘要： An array of binary weighed capacitors, an additional capacitor having a capacitance value equivalent to that of the least of the binary weighted capacitors, a voltage comparator, switches for interconnecting the capacitors with certain predetermined voltage levels and the comparator, and a sequencing circuit are included. One side of all of the capacitors is connected to one input terminal on the comparator and the other side has applied thereto the signal to be quantized. Switch sequencing combines divided portions of a reference voltage with the signal to be quantized for presentation to the input of the comparator which thereby provides a serial digit output connected to the sequencing circuit. In this fashion, a linear conversion between an analog and a digital signal is made by the sequencing circuit. A nonlinear converter between digital and analog signal presentation is also disclosed.

摘要翻译： 二进制加权电容器阵列，具有与二进制加权电容器中最少的电容值相当的电容值的附加电容器，电压比较器，用于将电容器与某些预定电压电平互连的开关和比较器，以及排序电路 。 所有电容器的一侧连接到比较器上的一个输入端子，而另一侧则向其施加要量化的信号。 开关顺序将参考电压的分割部分与要量化的信号相结合，以便呈现给比较器的输入，从而提供连接到排序电路的串行数字输出。 以这种方式，由定序电路进行模拟和数字信号之间的线性转换。 还公开了数字和模拟信号呈现之间的非线性转换器。

公开(公告)号：US4200863A

公开(公告)日：1980-04-29

申请号：US968590

申请日：1978-12-11

申请人： David A. Hodges ,  Paul R. Gray ,  James L. McCreary

发明人： David A. Hodges ,  Paul R. Gray ,  James L. McCreary

IPC分类号： H03M1/00 ,  H03K13/02

CPC分类号： H03M1/38 ,  H03M1/203

摘要： An array of binary weighted capacitors, an additional capacitor having a capacitance value equivalent to that of the least of the binary weighted capacitors, a voltage comparator, switches for interconnecting the capacitors with certain predetermined voltage levels and the comparator, and a sequencing circuit are included. One side of all of the capacitors is connected to one input terminal on the comparator and the other side has applied thereto the signal to be quantized. Switch sequencing combines divided portions of a reference voltage with the signal to be quantized for presentation to the input of the comparator which thereby provides a serial digit output connected to the sequencing circuit. In this fashion, a linear conversion between an analog and a digital signal is made by the sequencing circuit. A nonlinear converter between digital and analog signal presentation is also disclosed. Resolution of the coder/decoder is increased by providing a reference voltage generator capable of supplying stepped increments of the reference voltage to the capacitor array during the comparison process.

摘要翻译： 二进制加权电容器阵列，具有与二进制加权电容器中最少的电容值相当的电容值的附加电容器，电压比较器，用于将电容器与某些预定电压电平互连的开关和比较器，以及排序电路 。 所有电容器的一侧连接到比较器上的一个输入端子，而另一侧则向其施加要量化的信号。 开关顺序将参考电压的分割部分与要量化的信号相结合，以便呈现给比较器的输入，从而提供连接到排序电路的串行数字输出。 以这种方式，由定序电路进行模拟和数字信号之间的线性转换。 还公开了数字和模拟信号呈现之间的非线性转换器。 编码器/解码器的分辨率通过提供一个参考电压发生器来增加，该参考电压发生器能够在比较过程期间向电容器阵列提供参考电压的阶梯式增量。

公开(公告)号：US4974442A

公开(公告)日：1990-12-04

申请号：US343763

申请日：1989-04-26

申请人： Kenneth D. Ives ,  David A. Hodges

发明人： Kenneth D. Ives ,  David A. Hodges

IPC分类号： G01L5/00 ,  G01L25/00

CPC分类号： G01L5/0066 ,  G01L25/00 ,  G01L5/0076

摘要： In place calibration of the permanent on-line force measurement system of a rolling mill is performed by replacing the working rolls with dedicated calibration rolls, which can be scrap working rolls. Discontinuities formed in the cylindrical surfaces of dedicated calibration rolls, such as flat surfaces or preferrably flat bottomed longitudinal grooves, are engaged by interface members which also engage confronting flat surfaces or grooves in calibration load cells inserted between the dedicated calibration rolls. The interface members, which are made of a softer material than both the calibration rolls and the load cells, cold flows to evenly distribute the load and eliminate the need for precision machining of the interfaces. The dedicated calibration rolls can also be fixed, such as by welding, to dedicated calibration roll chalks which mount the calibration rolls in the mill housing to further prevent roll rotation and ejection of the calibration load cells. In some instances, when the braking effect of the deenergized work roll drive motor is sufficient, calibration can be performed using the normal working rolls with the aluminum interfaces with the calibration load cells having concave grooves which receive the working rolls.

摘要翻译： 在轧机的永久在线力测量系统的位置校准是通过用专用的校准辊（可以是废钢工作辊）来替换工作辊来进行的。 在专用校准辊的圆柱形表面中形成的不连续性，例如平坦表面或优选的平底部纵向凹槽，由接合构件接合，接合构件也与插入在专用校准辊之间的校准负载单元中的面对的平坦表面或凹槽接合。 接口构件由比校准辊和称重传感器更软的材料制成，冷却均匀地分布负载并且消除了对接口进行精密加工的需要。 专用校准辊也可以通过焊接固定到专用的校准辊白垩，其将校准辊安装在磨机壳体中，以进一步防止校准称重传感器的滚动旋转和喷射。 在一些情况下，当断电工作辊驱动电动机的制动效果足够时，可以使用具有铝接口的正常工作辊来进行校准，校准称重传感器具有容纳工作辊的凹槽。

公开(公告)号：US5079942A

公开(公告)日：1992-01-14

申请号：US565000

申请日：1990-08-08

申请人： Kenneth D. Ives ,  David A. Hodges

发明人： Kenneth D. Ives ,  David A. Hodges

IPC分类号： G01L5/00 ,  G01L25/00

CPC分类号： G01L5/0076 ,  G01L25/00 ,  G01L5/0066

摘要： In place calibration of the permanent on-line force measurment system of a rolling mill is performed by replacing the working rolls with dedicated calibration rolls, which can be scrap working rolls. Discontinuities formed in the cylindrical surfaces of dedicated calibration rolls, such as flat surfaces or preferrably flat bottomed longitudinal grooves, are engaged by interface members which also engage confronting flat surfaces or grooves in calibration load cells inserted between the dedicated calibration rolls. The interface members, which are made of a softer material than both the calibration rolls and the load cells, cold flows to evenly distribute the load and eliminate the need for precision machining of the interfaces. The dedicated calibration rolls can also be fixed, such as by welding, to dedicated calibration roll chocks which mount the calibration rolls in the mill housing to further prevent roll rotation and ejection of the calibration load cells. In some instances, when the braking effect of the deenergized work roll drive motor is sufficient, calibration can be performed using the normal working rolls with the aluminum interfaces with the calibration load cells having concave grooves which receive the working rolls.

摘要翻译： 在轧机的永久在线力测量系统的适当位置通过用专用的校准辊（可以是废钢工作辊）代替工作辊来进行。 在专用校准辊的圆柱形表面中形成的不连续性，例如平坦表面或优选的平底部纵向凹槽，由接合构件接合，接合构件也与插入在专用校准辊之间的校准负载单元中的面对的平坦表面或凹槽接合。 接口构件由比校准辊和称重传感器更软的材料制成，冷却均匀地分布负载并且消除了对接口进行精密加工的需要。 专用校准辊也可以通过焊接固定到专用校准辊轴承座上，该专用校准辊轴承座将校准辊安装在磨机壳体中，以进一步防止校准称重传感器的滚动旋转和弹出。 在一些情况下，当断电工作辊驱动电动机的制动效果足够时，可以使用具有铝接口的正常工作辊来进行校准，校准称重传感器具有容纳工作辊的凹槽。