公开(公告)号：US4064446A

公开(公告)日：1977-12-20

申请号：US729145

申请日：1976-10-04

申请人： Holger Krohn

发明人： Holger Krohn

IPC分类号： B23Q35/123 ,  G05B19/36

CPC分类号： B23Q35/123 ,  Y10T409/30112 ,  Y10T409/30196

摘要： The movement of a template past a stylus is controlled by furnishing desi velocity signals to first and second motors driving the template along two mutually perpendicular axes. Two wheatstone bridge strain gauge arrangements, one for each axis, and energized by quadrature voltages furnish signals which are combined in a summing amplifier to yield a signal having an amplitude and angular deflection corresponding to that of the stylus. The signal is rectified yielding a signal corresponding to the amplitude of stylus deflection and is further used to synchronize a sawtooth wave generator in accordance with the angle of deflection. The sawtooth wave output and the amplitude signal output are compared and when equal set a monostable multivibrator which closes two switches each sampling the output of one of the quadrature voltage generators energizing the strain gauges. Each of the so sampled voltages is applied to a potentiometer the output of which controls a corresponding one of the drive motors for the template.

摘要翻译： 模板通过触针的移动通过将所需的速度信号提供给沿着两个相互垂直的轴驱动模板的第一和第二电动机来控制。 两个惠斯通电桥应变仪布置，每个轴一个，并且由正交电压供电，提供组合在加法放大器中的信号，以产生具有对应于触针的振幅和角度偏转的信号。 对信号进行整流，产生与触针偏转幅度对应的信号，并进一步用于根据偏转角同步锯齿波发生器。 对锯齿波输出和振幅信号输出进行比较，当相等设置一个闭合两个开关的单稳态多谐振荡器时，每个采样一个正交电压发生器的输出使应变计通电。 每个这样采样的电压被施加到电位器，电位器的输出控制用于模板的相应的一个驱动电动机。

公开(公告)号：US06332462B1

公开(公告)日：2001-12-25

申请号：US08945690

申请日：1997-11-03

申请人： Holger Krohn

发明人： Holger Krohn

IPC分类号： A61M1600

CPC分类号： A61M16/1075 ,  A61M16/0066 ,  A61M2205/3606

摘要： The invention concerns a positive pressure nasal breathing apparatus in which a processed air flow is supplied at positive pressure to the person to be treated. The apparatus comprises: a first device (10) for producing a first air flow which has a given first temperature and a first degree of relative air humidity; and a second device (12) for processing the first air flow such that a second air flow to be completely or partially supplied to the person is produced. The temperature of the second air flow is lower and its degree of relative air humidity higher than that of the first air flow.

摘要翻译： 本发明涉及一种正压鼻呼吸器，其中处理后的空气流以正压力供给被治疗者。 该装置包括：第一装置（10），用于产生具有给定的第一温度和第一相对空气湿度的第一空气流; 以及用于处理所述第一空气流的第二装置（12），使得将完全或部分地供应给所述人的第二空气流被产生。 第二气流的温度较低，其相对空气湿度的程度高于第一气流的温度。

公开(公告)号：US4146827A

公开(公告)日：1979-03-27

申请号：US856599

申请日：1977-12-01

申请人： Holger Krohn

发明人： Holger Krohn

IPC分类号： H02P7/29 ,  H02P7/36

CPC分类号： H02P7/29 ,  Y10S388/915 ,  Y10S388/917

摘要： First and second branches, each containing two thyristors in series, all four thyristors of same polarity, are connected across positive and negative supply lines, in turn connected to positive and negative terminals of D.C. voltage source. D.C. motor connected between junction of two thyristors in one branch and junction of two thyristors in other branch. One pair of diagonally opposite thyristors, or other pair of diagonally opposite thyristors, rendered conductive, for flow of motor current in respective first or second direction. First and second transistors respectively connected in positive and negative supply lines to permit and interrupt thyristor current flow. Selection of a thyristor pair for conduction occurs based on sense of motor-current error. The transistors and selected two thyristors rendered conductive and non-conductive by pulse-width-modulated actuating signal derived from value of motor-current error. During transistor non-conduction intervals, bypass diode network causes current flowing through motor to pass through voltage source in a direction such that voltage source opposes the flow of motor current, irrespective of the motor-current direction.

公开(公告)号：US4988418A

公开(公告)日：1991-01-29

申请号：US323534

申请日：1989-03-14

申请人： Fritz Beck ,  Holger Krohn ,  Rainer Wagner ,  Eberhard Nann

发明人： Fritz Beck ,  Holger Krohn ,  Rainer Wagner ,  Eberhard Nann

IPC分类号： G01N27/416

CPC分类号： G01N27/416

摘要： In a method for the electrical measurement of the concentration of acids a measurement electrode (11) consisting at least predominantly of crystalline graphite is arranged in an acid (12) having anions which form graphite intercalation compounds with graphite. The measurement electrode (11) is then intercalated by generating in the measurement electrode (11), at a variable positive potential, a current of such a size that the anions of the acids (12) can from graphite intercalation compounds with the graphite. The current is maintained until the intercalation compounds have formed at the surface. The potential at the measurement electrode (11) is then measured and used as a measure for the acid concentration. The measurement electrode (11) is subsequently deintercalated again.

摘要翻译： 在用于电测量酸浓度的方法中，至少主要由结晶石墨构成的测量电极（11）被布置在具有与石墨形成石墨插层化合物的阴离子的酸（12）中。 然后通过在测量电极（11）中以可变的正电位产生如下尺寸的电流来插入测量电极（11），该电流的大小使得酸（12）的阴离子可以与石墨插入化合物。 保持电流直到在表面形成插层化合物。 然后测量测量电极（11）的电位，并将其用作酸浓度的量度。 测量电极（11）随后再次脱嵌。