公开(公告)号：US3732017A

公开(公告)日：1973-05-08

申请号：US3732017D

申请日：1970-10-23

Applicant: BENDIX CORP

Inventor： WOLBER W

IPC: G01N21/39 ,  G01N21/06 ,  G01N21/34

CPC classification number: G01N21/39

Abstract: A gas analyzer which employs a tunable laser is described. The laser is tunable over a well defined bandwidth so that coherent energy of all frequencies within the bandwidth is available. A known gas is introduced into the laser cavity so that the laser will lase only at the frequencies which correspond to the absorption frequencies of the gas. The output of the swept laser is therefore a reference spectrum containing a series of lines which correspond to the absorption frequencies of the known gas. The reference spectrum is therefore uniquely characteristic of the known gas. By illuminating a sample of an unknown gas with the reference spectrum some of, or all of, the peaks will be absorbed when the unknown gas partially, or completely, is composed of gases identical to those of the reference gas. The illumination from the unknown gas is detected with a broad band detector and the composition of the unknown gas identified by noting which of the reference spectrum peaks are absorbed and by the amount they are absorbed.

Abstract translation: 描述了采用可调谐激光器的气体分析仪。 激光器可以在明确的带宽上进行调谐，从而可以获得带宽内所有频率的相干能量。 已知的气体被引入到激光器腔中，使得激光器仅在对应于气体的吸收频率的频率处发光。 因此，扫描激光器的输出是包含与已知气体的吸收频率对应的一系列线的参考光谱。 因此，参考光谱是已知气体的独特特征。 通过用参考光谱照射未知气体的样品，当未知气体部分或完全由与参考气体相同的气体构成时，峰值将被吸收。 用宽带检测器检测来自未知气体的照明，并通过注意吸收参考光谱峰中的哪一个以及它们被吸收的量来鉴定未知气体的组成。

公开(公告)号：US3734623A

公开(公告)日：1973-05-22

申请号：US3734623D

申请日：1972-03-01

Applicant: BENDIX CORP

Inventor： WOLBER W

IPC: G01B9/02

CPC classification number: G01B9/02002 ,  G01B9/02041 ,  G01B9/02067 ,  G01B2290/45

Abstract: An interferometer having a frequency tunable laser generator for reflecting laser light from a movable mirror to provide an optical interference fringe pattern. A servo circuit, that includes detectors for receiving the optic fringe pattern and providing output signals whenever any displacement of the movable mirror causes the fringes to begin moving, automatically adjusts the frequency of the laser light signal to maintain the fringes in a fixed position. The direction and magnitude of the frequency variation of the laser signal required to hold the fringes in a fixed position is measured to determine the direction and magnitude of mirror displacement.

Abstract translation: 一种具有频率可调激光发生器的干涉仪，用于反射来自可移动反射镜的激光以提供光学干涉条纹图案。 一种伺服电路，其包括用于接收光学条纹图案的检测器，并且每当可移动镜的任何位移导致条纹开始移动时提供输出信号，则自动调节激光信号的频率以将条纹维持在固定位置。 测量将条纹保持在固定位置所需的激光信号的频率变化的方向和幅度，以确定反射镜位移的方向和幅度。

公开(公告)号：US3723966A

公开(公告)日：1973-03-27

申请号：US3723966D

申请日：1970-09-14

Applicant: BENDIX CORP

Inventor： MUELLER R ,  WOLBER W

IPC: B60C23/04 ,  B60C23/02

CPC classification number: G06K19/07764 ,  B60C23/0433

Abstract: A tire pressure indicating arrangement in which a passive transponding element is used as the tire pressure condition responsive sensor at each tire and an active transmitter is used to interrogate either successively or simultaneously each transponder, each of which is in turn adapted to transpond back to a receiver in response to the transmitter signal in the event tire pressure declines to an unsafe level. The receiver signal is then used to activate an alarm or indicating device.

Abstract translation: 轮胎压力指示装置，其中使用无源转发元件作为轮胎压力状态响应传感器在每个轮胎和主动发射机处，以连续地或同时地询问每个转发器，每个转发器又适应于回传到 在轮胎压力下降到不安全水平的情况下，响应于发射机信号的接收机。 然后接收机信号用于激活报警或指示设备。