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    • 8. 发明授权
    • Method and apparatus for measuring methane concentration in gas
    • 用于测量气体中甲烷浓度的方法和装置
    • US4567366A
    • 1986-01-28
    • US536051
    • 1983-09-26
    • Akio Shinohara
    • Akio Shinohara
    • G01N21/25G01N21/31G01N21/35G01J5/08
    • G01N21/255G01N21/314G01N21/3504G01N2201/08
    • A method and apparatus for measuring the methane concentration in a gas, which comprises transmitting light having at least one wavelength band selected from a band of 1.6 .mu.m and a band of 1.3 .mu.m through an optical fiber having a small transmission loss in said wavelength bands to a measuring cell where an ambient gas comes in and out, absorbing the light in at least one characteristic absorption wavelength of methane gas, selected from a wavelength of 1.666 .mu.m and a wavelength of 1.331 .mu.m, in said measuring cell, transmitting the light through an optical fiber having a small transmission loss in at least one wavelength band selected from a band of 1.6 .mu.m and a band of 1.3 .mu.m to a band-pass filter, separating the light into at least one light having the methane gas absorption wavelength, that is, the wavelength to be measured, and at least one light having other reference wavelength, determining the intensity ratio of the light having the wavelength to be measured to the light having the reference wavelength, and calculating the methane gas concentration in the measuring cell from the so-determined intensity ratio.
    • 一种用于测量气体中的甲烷浓度的方法和装置,其包括通过具有所述波长的传输损耗小的光纤传输具有选自1.6μm带和1.3μm波段的至少一个波长带的光 带到达环境气体进出的测量池,在所述测量池中吸收选自波长1.666μm和波长1.331μm的甲烷气体的至少一个特征吸收波长的光,透射 通过在从带宽为1.6μm和带宽为1.3μm的带状滤波器中选择的至少一个波长带中的光传输损耗小的光,将光分离成至少一个具有甲烷的光 气体吸收波长,即要测量的波长,以及至少一个具有其他参考波长的光,确定具有待测波长的光的强度比与Li 具有参考波长,并从所确定的强度比计算测量池中的甲烷气体浓度。
    • 9. 发明授权
    • Method for producing hot-dip galvanized steel sheet having high strength and also being excellent in formability and galvanizing property
    • 具有高强度并且成型性和镀锌性优异的热浸镀锌钢板的制造方法
    • US06537394B1
    • 2003-03-25
    • US09868674
    • 2001-06-21
    • Kazunori OsawaKei SakataOsamu FurukimiYoshitsugu SuzukiAkio Shinohara
    • Kazunori OsawaKei SakataOsamu FurukimiYoshitsugu SuzukiAkio Shinohara
    • C12D800
    • C23C2/02C21D8/0226C21D8/0273C21D8/0278C21D8/0478C21D2211/005C22C38/04C22C38/08C22C38/12C22C38/14C22C38/16C23C2/28
    • A hot-dip galvanized high-strength steel sheet having superior workability and galvanizability containing: 0.01% to 0.20% by weight of C; 1.0% by weight or less of Si; more than 1.5% to 3.0% by weight of Mn; 0.10% by weight or less of P; 0.05% by weight or less of S; 0.10% by weight or less of Al; 0.010% by weight or less of N; 0.010% to 1.0% by weight in total of at least one element selected from the group consisting of Ti, Nb, and V; and the balance being Fe and incidental impurities; in which the steel sheet has the metal structure in which the areal rate of the ferrite phase is 50% or more, the ferrite phase has an average grain diameter of 10 &mgr;m or less, and the thickness of a band-like structure composed of the second phase satisfies the relationship Tb/T≦0.005, where Tb is the average thickness in the sheet thickness direction of the band-like structure and T is the thickness of the steel sheet, and a method for producing the same. To provide a method for producing a hot-dip galvanized high-strength steel sheet in which superior workability and high strength are obtained and moreover satisfactory galvanizability is obtained when galvanizing is performed using facilities such as a continuous galvanizing line.
    • 一种具有优异的加工性和镀层性的热浸镀锌高强度钢板,其含有:0.01〜0.20重量%的C,1.0重量%以下的Si,1.5重量%〜3.0重量%的Mn,0.10重量% 以下的P:0.05重量%以下,S:0.10重量%以下,Al:0.010重量%以下,N:0.010重量%以下,0.010〜1.0重量% 由Ti,Nb和V组成的组; 余量为Fe和杂质;其中钢板具有铁素体相的面积率为50%以上的金属结构,铁素体相的平均粒径为10μm以下,厚度为 由第二相组成的带状结构满足Tb / T <0.005的关系,其中Tb是带状结构的板厚方向上的平均厚度,T是钢板的厚度, 为了生产相同。 为了提供一种能够获得优异的加工性和高强度的热镀锌高强度钢板的制造方法,并且当使用诸如连续镀锌线的设备进行镀锌时,获得了令人满意的镀锌性。