公开(公告)号：US3710938A

公开(公告)日：1973-01-16

申请号：US3710938D

申请日：1971-11-29

Applicant: OWENS ILLINOIS INC

Inventor： SCHERF G

IPC: B07C5/12 ,  G01B7/06 ,  G01B15/02 ,  B07C5/34

CPC classification number: G01B15/02 ,  B07C5/128 ,  G01B7/06

Abstract: Apparatus for detecting the presence of relatively narrow, thin sections in the sidewall of glass containers and rejecting those containers which exhibit such narrow, thin sections. A radio frequency source coupled to a transmitting antenna positioned adjacent the container establishes a radio frequency field extending through the wall of the glass container. The wall of the container is moved relative to a receiving probe. The instantaneous magnitude of the field received by the probe provides an indication of the thickness of the container sidewall. The signal received is amplified and the first derivative of the voltage with respect to time is taken. The rate of change of the voltage is a direct indication of the change in thickness of successive sections of the container sidewall being gauged. Those containers which exhibit a rate of change of voltage with respect to time above a preset level are rejected as being defective.

Abstract translation: 用于检测在玻璃容器的侧壁中存在相对较窄的薄部分的装置，并且排除展示这样窄的薄部分的那些容器。 耦合到邻近容器定位的发射天线的射频源建立了延伸穿过玻璃容器壁的射频场。 容器的壁相对于接收探针移动。 由探头接收的场的瞬时幅度提供了容器侧壁厚度的指示。 接收到的信号被放大，并且采用相对于时间的电压的一阶导数。 电压的变化率直接指示被测量的容器侧壁的连续部分的厚度变化。 相对于高于预设水平的时间表现出电压变化率的那些容器被拒绝为有缺陷的。

公开(公告)号：US3780859A

公开(公告)日：1973-12-25

申请号：US3780859D

申请日：1973-02-08

Applicant: OWENS ILLINOIS INC

Inventor： SCHERF G ,  KOHLER R

IPC: G01B7/06 ,  G01B15/02 ,  B07C5/08

CPC classification number: G01B15/02 ,  G01B7/06

Abstract: Apparatus and method for displaying the minimum thickness of a glass container which is measured for thickness by a radio frequency thickness gauge. One type of thickness measuring device for glass containers uses the attenuation of a radio frequency signal as a linear measure of thickness in terms of voltages. The output voltage is scaled to obtain a voltage which is numerically equal to the value of thickness of the container in thousandths of an inch. The thickness of the container may vary over a range of thicknesses. This invention will hold the minimum thickness measured for a particular container and display this, in terms of the scaled voltage, as a digital number. This aids in detecting and diagnosing thickness flaws in glass containers. The circuit for holding the minimum thickness is erased of its previous reading and reset to accept a new minimum thickness as the measurement of a new container is begun.

Abstract translation: 用于显示通过射频测厚仪测量厚度的玻璃容器的最小厚度的装置和方法。 用于玻璃容器的一种类型的厚度测量装置使用射频信号的衰减作为电压方面的厚度的线性测量。 输出电压被缩放以获得数字等于容器厚度值的电压，千分之一英寸。 容器的厚度可以在厚度范围内变化。 本发明将保持针对特定容器测量的最小厚度，并将其按比例缩放的电压显示为数字数字。 这有助于检测和诊断玻璃容器中的厚度缺陷。 用于保持最小厚度的电路在之前的读取中被擦除并且被复位以在开始新容器的测量时接受新的最小厚度。

公开(公告)号：US3779378A

公开(公告)日：1973-12-18

申请号：US3779378D

申请日：1973-01-31

Applicant: OWENS ILLINOIS INC

Inventor： SCHERF G

IPC: G01B7/06 ,  G01B15/02 ,  G06G7/28 ,  B07C5/08

CPC classification number: G06G7/28 ,  G01B7/06 ,  G01B15/02

Abstract: Apparatus and method for producing a linear voltage versus thickness output for a radio frequency glass thickness gauge. One type of thickness measuring device for glass containers uses the attenuation of a radio frequency signal as a measure of thickness. The thickness signal is a voltage which varies nonlinearly as a function of thickness. This invention is a circuit for linearizing the nonlinear thickness signal. The input resistance to an operational amplifier is varied as a function of the thickness signal voltage. This creates a variable gain for the operational amplifier and consequently results in the generation of a linear thickness versus voltage relationship. Zener diodes are used as nonlinear variable resistors in two different thickness ranges to give a nonlinear, variable, input resistance to the operational amplifier.

Abstract translation: 用于产生射频玻璃厚度计的线性电压对厚度输出的装置和方法。 用于玻璃容器的一种类型的厚度测量装置使用射频信号的衰减作为厚度的量度。 厚度信号是作为厚度的函数非线性变化的电压。 本发明是用于线性化非线性厚度信号的电路。 对运算放大器的输入电阻作为厚度信号电压的函数而变化。 这为运算放大器产生可变增益，从而导致线性厚度对电压关系的产生。 齐纳二极管用作两个不同厚度范围的非线性可变电阻器，为运算放大器提供非线性，可变的输入电阻。

公开(公告)号：US3838321A

公开(公告)日：1974-09-24

申请号：US40925273

申请日：1973-10-24

Applicant: OWENS ILLINOIS INC

Inventor： DAMM D ,  SCHERF G

IPC: B65G43/00 ,  B65G23/00 ,  B65G23/24 ,  G01N21/90 ,  G01P3/42 ,  H02P5/46 ,  H02P5/50 ,  H02P5/60 ,  H02P5/00

CPC classification number: H02P5/60 ,  H02P5/51

Abstract: A motor speed control for a plurality of machines operating in parallel. In the inspection of glass containers, a group of containers are split into individual lines, three for example. Each line is fed to a separate inspection machine where identical inspection functions are performed. This invention is a control system for the electric motor drives of the inspection machines. The speed of all of the machines is monitored, and whenever any machine stops or falls below a minimum speed, the remaining machines are automatically increased in speed to an emergency speed. The remaining machines can operate fast enough to inspect all of the glass containers, which, under these circumstances, are divided into only two lines instead of three.

Abstract translation: 用于并行操作的多台机器的电动机速度控制。 在检查玻璃容器时，一组容器被分成单独的管道，例如三个。 每条线路都供给到执行相同检查功能的单独的检查机器。 本发明是用于检查机的电动机驱动的控制系统。 监控所有机器的速度，每当任何机器停止或降到最低速度以下时，其余机器的速度将自动增加到紧急速度。 其余的机器可以运行得足够快以检查所有的玻璃容器，在这种情况下，它们只分成两行而不是三行。