公开(公告)号：US4627269A

公开(公告)日：1986-12-09

申请号：US712682

申请日：1985-03-18

Applicant: Martin Forster ,  Sigfrid Strassler

Inventor： Martin Forster ,  Sigfrid Strassler

IPC: G01N27/12 ,  G01N33/00

CPC classification number: G01N27/124

Abstract: Reducing gases can be detected in a gas mixture to be investigated, particularly in air, with high sensitivity and precision by means of a gas detector. The gas detector comprises a gas sensor which is arranged within a measuring chamber. The temperature of the gas sensor can be continuously increased according to a predetermined pattern from a starting value to an upper threshold value and can be subsequently decreased again to the starting value according to the same or according to a different pattern. There are provided at least two such heating cycles. Simultaneously therewith the gas mixture to be investigated, which is present in the measuring chamber, is periodically exchanged against a pure reference gas which is contained in a reference chamber. A selected property, such as the electrical conductivity of the gas sensor is thereby periodically changed. The temporal variation of this periodically varying electric conductivity can be detected in an evaluation circuit arrangement and/or evaluated for determining the concentration and/or the nature of the reducing gases which are present in the gas mixture to be investigated.

Abstract translation: 可以通过气体检测器以高灵敏度和精确度在待研究的气体混合物中，特别是在空气中检测到还原气体。 气体检测器包括布置在测量室内的气体传感器。 气体传感器的温度可以根据从起始值到上限阈值的预定模式连续地增加，并且可以随后根据相同或根据不同的模式再次降低到起始值。 至少提供两个这样的加热循环。 与此同时，存在于测量室中的要研究的气体混合物周期性地与包含在参考室中的纯参考气体交换。 因此，选择的特性，例如气体传感器的电导率被周期性地改变。 这种周期性变化的电导率的时间变化可以在评估电路装置中检测和/或评估以确定存在于要研究的气体混合物中的还原气体的浓度和/或性质。

公开(公告)号：US4584867A

公开(公告)日：1986-04-29

申请号：US640125

申请日：1984-08-03

Applicant: Martin Forster

Inventor： Martin Forster

IPC: G01N27/04 ,  G01N27/12 ,  G01N33/00

CPC classification number: G01N27/12 ,  G01N33/0031

Abstract: The device comprises a gas sensor containing a predetermined number of sensor elements which change their electric conductivity under the action of gases. Such a gas sensor is used for selectively determining the components of gas mixtures. For this purpose the individual sensor elements are arranged on a heat-resistant, thermally insulating substrate and the individual sensor elements are sensitized for the determination of different components of the gas mixture by selecting different materials and/or operating temperatures for the individual sensor elements. The sensor elements and its components are arranged such that the gas mixture to be investigated is guided past the sensor elments in a directed flow. The temperatures of the sensor elements increase in a stepwise manner in the direction of the gas flow and thereby a further increase in the selectivity of the gas sensor is achieved.

Abstract translation: 该装置包括含有预定数量的传感器元件的气体传感器，其在气体作用下改变其导电性。 这种气体传感器用于选择性地确定气体混合物的组分。 为此，各个传感器元件布置在耐热绝热基板上，并且通过为各个传感器元件选择不同的材料和/或操作温度，各个传感器元件被致敏以确定气体混合物的不同部件。 传感器元件及其部件布置成使待调查的气体混合物以有向的流动方式被引导通过传感器。 传感器元件的温度在气流方向上以逐步的方式增加，从而实现气体传感器的选择性的进一步增加。

公开(公告)号：US20100085201A1

公开(公告)日：2010-04-08

申请号：US12573257

申请日：2009-10-05

Applicant: Martin Forster

Inventor： Martin Forster

IPC: G08B17/10

CPC classification number: G08B29/14 ,  C09K3/30

Abstract: A test device, for checking the functioning capability of a gas-alarm annunciator, has a reservoir in which are located a target fluid and a carrier fluid. At least a part of the carrier fluid is present in a liquid aggregate state and the target fluid is at least partially dissolved in the liquid carrier fluid. An extraction device engages into the reservoir such that the target fluid can be extracted along with the liquid carrier fluid. The target fluid is constituted such that on reaching a coverage area of a properly functioning gas-alarm annunciator it will cause the gas-alarm annunciator to annunciate an alarm. A test system and a test method for checking a gas-alarm annunciator's functioning capability use such a test device.

Abstract translation: 用于检查气体报警器的功能的测试装置具有其中位于目标流体和载体流体中的储存器。 至少一部分载体流体以液体聚集状态存在，并且目标流体至少部分地溶解在液体载体流体中。 提取装置接合到储存器中，使得目标流体可以与液体载体流体一起被抽出。 目标流体被构造成使得在达到正常工作的气体报警器的覆盖区域时，它将使气体报警器报警器报警。 用于检查气体报警器功能的测试系统和测试方法使用这种测试装置。

公开(公告)号：US07107931B1

公开(公告)日：2006-09-19

申请号：US09647604

申请日：1999-03-29

Applicant: Martin Forster

Inventor： Martin Forster

IPC: A01K5/02

CPC classification number: A01K9/00 ,  A01K5/0216

Abstract: A method for automatically calibrating the control system of a device for providing domestic animals with a feed. The feed or the constituents thereof are discharged from supply containers (2.1-2.5) into a mixing container (1) which is connected to an area (3) from which the animals can take the feed. The time at which the feed or at least one of its constituents is added is predetermined in the control system and the time required for a certain quantity (volume and/or weight) of the feed or of a certain constituent of the feed to reach the mixing container (1) is determined automatically at intervals. In the event that the desired quantity is modified, the time which is predetermined in the control system is also modified.

Abstract translation: 一种用于自动校准用于向家畜提供饲料的装置的控制系统的方法。 饲料或其成分从供应容器（2.1-2.5）排出到混合容器（1）中，混合容器（1）连接到动物可以从其喂食的区域（3）。 进料或其至少一种组分的添加时间在控制系统中是预定的，并且进料或进料的某些成分达到一定量（体积和/或重量）所需的时间 混合容器（1）会自动间隔地确定。 在所需数量被修改的情况下，控制系统中预定的时间也被修改。

公开(公告)号：US5841017A

公开(公告)日：1998-11-24

申请号：US828837

申请日：1997-03-24

Applicant: Mourad Baraket ,  Mauro Feltre ,  Martin Forster ,  Rene Lenggenhager ,  Andreas Portmann ,  Georges Tenchio

Inventor： Mourad Baraket ,  Mauro Feltre ,  Martin Forster ,  Rene Lenggenhager ,  Andreas Portmann ,  Georges Tenchio

IPC: G01N21/17 ,  G01L27/00

CPC classification number: G01N21/1702

Abstract: In a photo-acoustic gas sensor having a measuring cell, a lamp, a photo-diode, a gas-permeable diaphragm and a microphone, a device is included for monitoring the gas-permeable diaphragm and the microphone. The device is operated in an explosion-proof manner. Intentionally, for diagnostic purposes, an artificial pressure modulation is generated in the measuring cell. The pressure modulation is converted by the microphone into electrical monitoring signals which are amplified by an amplifier circuit and assigned to preset ranges by a microprocessor, for determining the functional condition of the diaphragm and the microphone, and of microphone sensitivity. Depending on the range assigned to the monitoring signal, an output signal is generated indicating a fault in the microphone and/or the diaphragm. In the event of long-term drift in microphone sensitivity, a calibration is performed in which gas concentration values are re-calculated and stored in an EEPROM. A heater wire can be used, for modulated heating to generate the pressure modulation.

Abstract translation: 在具有测量单元，灯，光电二极管，透气隔膜和麦克风的光声气体传感器中，包括用于监测透气隔膜和麦克风的装置。 该设备以防爆方式运行。 故意地，为了诊断目的，在测量单元中产生人工压力调制。 压力调制由麦克风转换为由放大器电路放大并由微处理器分配给预设范围的电监控信号，用于确定隔膜和麦克风的功能状况以及麦克风灵敏度。 根据分配给监控信号的范围，产生指示麦克风和/或隔膜故障的输出信号。 在麦克风灵敏度长期漂移的情况下，执行校准，其中将气体浓度值重新计算并存储在EEPROM中。 可以使用加热器线，用于调制加热以产生压力调制。

公开(公告)号：US5753797A

公开(公告)日：1998-05-19

申请号：US706240

申请日：1996-09-04

Applicant: Martin Forster ,  Rolf Pleisch ,  Mourad Baraket

Inventor： Martin Forster ,  Rolf Pleisch ,  Mourad Baraket

IPC: G01N29/00 ,  G01N21/00 ,  G01N21/17 ,  G01N29/02

CPC classification number: G01N21/1702 ,  G01N2291/02809 ,  G01N2291/02872

Abstract: A photo-acoustic gas sensor for measuring a gas concentration, e.g., of an explosive gas, consists of a cylindrical sensor body (1) which includes a cylindrical measurement chamber (13) whose longitudinal axis extends perpendicular to the longitudinal axis of the cylindrical sensor body. Without changing the outer dimensions of the sensor body, the length of the measurement chamber can be changed in accordance with a desired measurement sensitivity and a desired measurement range. A light source (5) is disposed such that it irradiates the measurement chamber without irradiating a gas-permeable membrane (2), so that the membrane will not produce an interference signal. The gas sensor is rendered explosion-proof as the light source and a photo-diode (6) which monitors the light source are tightly sealed from the environment. Proper functioning of a microphone (4), the light source and the photo-diode are monitored by analyzing a background signal.

Abstract translation: 用于测量例如爆炸性气体的气体浓度的光声气体传感器由圆柱形传感器主体（1）组成，该圆柱形传感器主体（1）包括圆柱形测量室（13），该圆柱形测量室的纵向轴线垂直于圆柱形传感器 身体。 不改变传感器主体的外部尺寸，可以根据期望的测量灵敏度和期望的测量范围来改变测量室的长度。 光源（5）被布置成使得它不照射透气膜（2）照射测量室，使得膜不会产生干涉信号。 气体传感器作为光源被防爆，并且监测光源的光电二极管（6）与环境密封。 通过分析背景信号来监测麦克风（4），光源和光电二极管的正常功能。

公开(公告)号：US4940897A

公开(公告)日：1990-07-10

申请号：US359971

申请日：1989-06-01

Applicant: Martin Forster ,  Claudia Illert

Inventor： Martin Forster ,  Claudia Illert

IPC: G01J1/02 ,  C01G35/00 ,  G01J5/02 ,  G01J5/34 ,  H01B5/00 ,  H01B5/14 ,  H01L37/02

CPC classification number: H01L37/025

Abstract: A pyroelectric detector comprising a substrate, pyroelectric material distributed in a binder and applied to said substrate, and at least two electrically conductive electrodes, wherein the pyroelectric material comprises lithium tantalate consisting of single crystal particles, said lithium tantalate containing an amount of tantalum ranging from 25 to 75 mole % as tantalum pentoxide.

Abstract translation: 一种热释电检测器，包括基板，分布在粘合剂中并施加到所述基板上的热电材料和至少两个导电电极，其中所述热电材料包括由单晶颗粒组成的钽酸锂，所述钽酸锂含有一定量的钽， 25至75摩尔％，作为五氧化二钽。

公开(公告)号：US4788940A

公开(公告)日：1988-12-06

申请号：US42301

申请日：1987-04-24

Applicant: Martin Forster

Inventor： Martin Forster

IPC: A01K5/02 ,  A01K9/00

CPC classification number: A01K9/00 ,  A01K5/0216

Abstract: A mechanism for feeding animals with liquid feed that can be withdrawn from a supply unit, such as an automatic soaking unit, and can be supplied to a suction unit via a conduit. A feed pump is placed in the conduit, with the conveying capacity of the feed pump being regulatable as a function of vacuum in the conduit.

Abstract translation: 用于向动物喂食可以从供应单元（例如自动浸泡单元）中取出的液体进料的机构，并且可以经由导管供给到抽吸单元。 进料泵放置在导管中，进料泵的输送能力作为导管中真空的函数来调节。