Electro-pneumatic signal converter
    1.
    发明授权
    Electro-pneumatic signal converter 失效
    电动气动信号转换器

    公开(公告)号:US4442854A

    公开(公告)日:1984-04-17

    申请号:US341018

    申请日:1982-01-20

    摘要: An electro-pneumatic signal converter for converting an electrical current signal into a pneumatic pressure, comprising a force balancing system where a magnetic force is balanced against a pneumatic force, consists of a coil (11) through which the electrical signal current flows, a magnetic circuit comprising a core (12) of ferromagnetic material disposed in the coil (11) with a nozzle chamber (14) with a mouth in the form of a nozzle (13) in one end of the core, a flapper (17) of ferromagnetic material over the nozzle and a link (16) of ferromagnetic material which closes the magnetic circuit between the flapper and the opposite end of the core, a feed line (19, 19A, 19B) for a constant flow of feed air into the nozzle chamber (14) and out again through the nozzle (13) into the gap (25) between the nozzle and the flapper, and a pressure-sensing line (24) from the nozzle chamber to a pressure-dependent member (7) to transmit a pneumatic pressure signal from the nozzle chamber to the pressure-dependent member.

    摘要翻译: 一种用于将电流信号转换成气动压力的电动气动信号转换器,其包括磁力平衡于气动力的力平衡系统,其由电信号电流流过的线圈(11) 电路包括设置在线圈(11)中的铁磁材料芯(12),其具有在芯的一端具有喷嘴(13)形式的嘴的喷嘴室(14),铁磁体(17)的挡板 喷嘴上的材料和一个铁心材料的连接件(16),其封闭挡板和芯体的相对端之间的磁路,用于使进料空气恒定流入喷嘴室的进料管线(19,19A,19B) (14)并且通过喷嘴(13)再次进入喷嘴和挡板之间的间隙(25),以及从喷嘴室到压力依赖元件(7)的压力传感线(24) 从喷嘴室到p的气压信号 ressure依赖成员。

    Method for measuring the content of bleaching chemicals used for bleaching cellulose fibers
    2.
    发明授权
    Method for measuring the content of bleaching chemicals used for bleaching cellulose fibers 有权
    漂白纤维素漂白剂含量测定方法

    公开(公告)号:US06332951B1

    公开(公告)日:2001-12-25

    申请号:US09331462

    申请日:1999-06-21

    IPC分类号: C12Q130

    CPC分类号: D21C9/163 D21C9/1052 G01N7/18

    摘要: A method and a device for measuring the content of chemicals used in connection with bleaching of preferably cellulose fibers in a pulp, suspension for the purpose of providing a better and more uniform product quality and preventing overdosage of the bleaching chemical used. According to the invention a measurement sample is derived from a predetermined volume of the pulp suspension after or during the bleaching. Further, a catalyst in the shape of the enzyme catalase is added to the sample, which is agitated so that the bleaching chemical is decomposed and oxygen gas is generated, which oxygen gas pushes out a certain sample volume for the measurement sample, which sample volume is directly or indirectly converted, e.g. via a simple algorithm, to a value representing the content of the bleaching chemical used.

    摘要翻译: 用于测量与纸浆悬浮液中优选纤维素纤维漂白有关的化学品含量的方法和装置,目的是提供更好和更均匀的产品质量并防止所用漂白化学品的过量使用。 根据本发明,在漂白之后或期间,从预定体积的纸浆悬浮液得到测量样品。 此外,向样品中加入酶过氧化氢酶形式的催化剂,将其搅拌,使得漂白化学品分解并产生氧气,该氧气推出测量样品的一定样品体积,该样品体积 直接或间接转换,例如 通过简单的算法,代表所使用的漂白化学物质的含量。

    Method and an arrangement for measuring the amount/activity of catalase
before or in connection with bleaching of preferably cellulose fibres
included in a pulp suspension
    3.
    发明授权
    Method and an arrangement for measuring the amount/activity of catalase before or in connection with bleaching of preferably cellulose fibres included in a pulp suspension 失效
    用于测量在漂白之前或与之相关的过氧化氢酶的量/活性的装置,优选纤维素纤维包含在纸浆悬浮液中

    公开(公告)号:US6124111A

    公开(公告)日:2000-09-26

    申请号:US367653

    申请日:1999-08-19

    CPC分类号: D21C5/005 D21C9/1052 G01N7/18

    摘要: The invention relates to a method and a device for measuring the amount/activity of the enzyme catalase before or in connection with bleaching of cellulose fibers preferably in a pulp suspension for the purpose of providing a better and more uniform product quality and a correct dosing of the actual bleaching substance during the bleaching. According to the invention a measurement sample is derived from a predetermined volume of the pulp suspension after or during the bleaching. Further, a determined amount of bleaching substance is added to the sample, which is agitated so that the bleaching substance is decomposed and oxygen gas is generated, which oxygen gas pushes out a certain sample volume from the measurement sample, which sample volume is measured after a determined time and is directly or indirectly converted, e.g. via a simple algorithm, to a value representing the actual amount of catalase.

    摘要翻译: PCT No.PCT / SE98 / 02434 Sec。 371日期1999年8月19日 102(e)1999年8月19日PCT PCT 1998年12月22日PCT公布。 出版物WO99 /​​ 35482 日期1999年7月15日本发明涉及一种用于在纤维素纤维漂白之前或之内测量酶过氧化氢酶的量/活性的方法和装置,优选在纸浆悬浮液中用于提供更好和更均匀的产品质量 并在漂白过程中正确计量实际的漂白物质。 根据本发明,在漂白之后或期间,从预定体积的纸浆悬浮液得到测量样品。 此外,向样品中加入确定量的漂白物质,使其漂白物质分解并产生氧气,氧气从测量样品中推出一定的样品体积,测定样品体积后,测定样品体积 确定的时间并直接或间接转换,例如 通过简单的算法,得到表示过氧化氢酶的实际量的值。

    Method and arrangement for determining fibre properties by
near-infrared-spectroscopy
    4.
    发明授权
    Method and arrangement for determining fibre properties by near-infrared-spectroscopy 失效
    通过近红外光谱测定光纤性能的方法和装置

    公开(公告)号:US5536942A

    公开(公告)日:1996-07-16

    申请号:US196207

    申请日:1994-03-11

    摘要: A method and an arrangement for determining properties of fibers in a supension of said fibers with the aid of spectroscopic measurements carried out in a wavelength range within the near infrared range (NIR), comprising introducing the fiber suspension into a measuring cell (20) which is provided with a filter (35) and an outlet (47) at one end thereof; concentrating the fiber suspension in the cell while simultaneously measuring the absorbency until a predetermined value is obtained at that wavelength at which the measurement is effected, or for the highest peak of the registered spectrum, at which point supply of the suspension is stopped, the outlet (47) from the cell is closed and a complete spectrum within the wavelength range is registered, whereafter the sought properties of the fibers are determined in a computer unit on the basis of earlier calibrations carried out on samples of known fiber properties. An arrangement for washing a fiber suspension-sample includes a cylinder having a piston, piston rod and a filter which is mounted close to the end of the cylinder opposite the piston rod, so as to divide the cylinder into a large piston-accommodating chamber and a small chamber, wherein delivery pipes leading to the cylinder and outlet pipes extending therefrom are connected to the small chamber and inlet pipes through which sample is delivered to the cylinder and outlet pipes for washed sample are connected to the large chamber.

    摘要翻译: PCT No.PCT / SE92 / 00626 Sec。 371日期:1994年3月11日 102(e)1994年3月11日PCT PCT 1992年9月11日PCT公布。 出版物WO93 / 05384 日期:1995年3月18日。一种用于通过在近红外范围(NIR)内的波长范围内进行的光谱测量来确定所述纤维的纤维的纤维性质的方法和装置,包括将纤维悬浮液引入 在其一端设置有过滤器(35)和出口(47)的测量单元(20); 将纤维悬浮液浓缩在细胞中同时测量吸光度,直到在进行测量的波长处获得预定值,或者对于登记光谱的最高峰,停止供应悬浮液时,出口 (47)关闭,并且记录波长范围内的完整光谱,然后基于对已知光纤特性的样品进行的较早校准,在计算机单元中确定所寻求的光纤性能。 用于清洗纤维悬浮液样品的装置包括具有活塞,活塞杆和过滤器的气缸,其安装在与活塞杆相对的气缸的端部附近,以将气缸分成大的活塞容纳室, 小室,其中通向气缸的输送管和从其延伸的出口管连接到小室和入口管,样品被送到气缸,洗涤样品的出口管连接到大腔。

    Method for the determination of the concentration of micro-organisms
    5.
    发明授权
    Method for the determination of the concentration of micro-organisms 失效
    测定微生物浓度的方法

    公开(公告)号:US06777201B1

    公开(公告)日:2004-08-17

    申请号:US10130983

    申请日:2002-05-24

    IPC分类号: C12Q118

    CPC分类号: C12Q1/30 C12Q1/04

    摘要: The concentration or amount of living micro-organisms in a liquid sample can be determined in a reliable manner by determining the concentration of a substance, secreted by the micro-organisms, in the sample, which sample then is subjected to a treatment killing the micro-organisms; whereupon the concentration of the substance is measured anew. The relation between the first and second concentration is used as a measure of the concentration of micro-organisms in the sample.

    摘要翻译: 可以通过确定样品中由微生物分泌的物质的浓度,以可靠的方式确定液体样品中活性微生物的浓度或量,然后将样品进行杀死微生物 有机体 然后重新测量物质的浓度。 第一和第二浓度之间的关系用作样品中微生物浓度的量度。