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    • 3. 发明专利
    • Fire sensor
    • 消防传感器
    • JP2008262530A
    • 2008-10-30
    • JP2007279706
    • 2007-10-26
    • Matsushita Electric Works Ltd松下電工株式会社
    • WATABE YOSHIFUMIHONDA YOSHIAKITAKADA YUJINISHIKAWA NAOYUKI
    • G08B17/10G01N29/00G01N29/02
    • G01N2291/02809G01N2291/02818G01N2291/02872G01N2291/02881
    • PROBLEM TO BE SOLVED: To provide a fire sensor in which an S/N ratio has been increased in a structure where whether or not there is a fire is discriminated on the basis of the attenuation amount of an ultrasonic wave in a monitor space between a sound source part and a wave receiving element. SOLUTION: The fire sensor comprises: a sound source unit 1 capable of sending ultrasonic waves; a control unit for controlling the sound source unit 1; a sound wave receiving unit 3 for detecting sound pressure of the ultrasonic waves sent by the sound source unit 1; and a signal processing unit for determining whether or not there is the fire on the basis of the output of the wave receiving element 3. The signal processing unit includes a smoke density estimating means for estimating the smoke density of the monitor space between the sound source unit 1 and the wave receiving element 3 on the basis of the attenuation amount from the reference value of the output of the wave receiving element 3 and a smoke style determining means for determining whether or not there is the fire by comparing the smoke density estimated by the smoke density estimating means with a predetermined threshold value. A cylinder 6 which is formed into a cylinder shape and narrows the diffusion range of the ultrasonic waves from the sound source unit by making the ultrasonic waves go into an inner space is placed between the sound source part 1 and the wave receiving element 3. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种在基于监视器中的超声波的衰减量来判别是否存在火灾的结构中已经增加了S / N比的火灾传感器 声源部分和波接收元件之间的空间。 解决方案:火灾传感器包括:能够发送超声波的声源单元1; 用于控制声源单元1的控制单元; 用于检测由声源单元1发送的超声波的声压的声波接收单元3; 以及信号处理单元,用于基于波接收元件3的输出来确定是否存在火灾。信号处理单元包括烟浓度估计装置,用于估计声源之间的监视器空间的烟浓度 基于来自波形接收元件3的输出的参考值的衰减量的单元1和波接收元件3以及烟样式确定装置,用于通过比较由火焰接收元件3的输出估计的烟雾密度来确定是否存在火灾 烟浓度估计装置具有预定的阈值。 通过使超声波进入内部空间,形成为圆筒形状并且使来自声源单元的超声波的扩散范围变窄的圆筒6被放置在声源部1和波接收元件3之间。 P>版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Method of detecting hydrogen concentration, and hydrogen detector
    • 检测氢浓度的方法和氢探测器
    • JP2005106618A
    • 2005-04-21
    • JP2003340170
    • 2003-09-30
    • Honda Motor Co Ltd本田技研工業株式会社
    • SHIMADA TAKEAKINUITANI YOSHIO
    • G01N19/00G01N7/04
    • G01N7/04G01N2291/02872
    • PROBLEM TO BE SOLVED: To reduce an electric power consumption required for detecting a hydrogen concentration.
      SOLUTION: In this hydrogen concentration detecting method for detecting whether a hydrogen concentration is a reference concentration or more or not using a hydrogen detector 1 provided with a detecting element 4 comprising a hydrogen storage alloy storing the reference concentration of hydrogen at a prescribed reference temperature higher than an atmospheric temperature, a micro-heater 2 and a substrate 3 for heating the detecting element 4, and a strain gage 6 for detecting a volume change when the detecting element 4 stores the hydrogen, an operation of the micro-heater 2 is stopped (OFF) usually, and the micro-heater 2 is operated (ON) to heat the detecting element 4 when the strain gage 6 detects the volume change of the detecting element 4 during the operation stop of the micro-heater 2.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了降低检测氢浓度所需的电力消耗。 解决方案:在该氢浓度检测方法中,使用具有检测元件4的氢检测器1检测氢浓度是否为参考浓度以上,该检测元件4包含在规定的温度下存储氢的参考浓度的储氢合金 参考温度高于大气温度,微加热器2和用于加热检测元件4的基板3;以及应变计6,用于检测检测元件4存储氢时的体积变化,微加热器 2通常停止(OFF),并且当应变计6在微加热器2的操作停止期间检测到检测元件4的体积变化时,微加热器2被操作(ON)以加热检测元件4。 版权所有(C)2005,JPO&NCIPI
    • 6. 发明专利
    • Ultrasonic sludge interface meter
    • 超声波接口仪表
    • JP2004177190A
    • 2004-06-24
    • JP2002341680
    • 2002-11-26
    • Fuji Electric Systems Co Ltd富士電機システムズ株式会社
    • KASHIMURA OSAMU
    • G01F23/28G01N29/02
    • G01N2291/02872
    • PROBLEM TO BE SOLVED: To provide an ultrasonic sludge interface gauge capable of detecting a sludge interface at any location in a sedimentation basin and a tank and measuring the distance from a water level to the sludge interface as well as sludge thickness. SOLUTION: A pressure measuring means 10 for measuring hydraulic pressure is attached to an ultrasonic transmitting/receiving device 4 suspended in water for measuring the distance (L 1 ) to the interface of sludge 2 by transmitting and receiving ultrasonic pulses to compute the distance (L 2 ) from the water level to the ultrasonic transmitting/receiving device 4. The distance (L 0 ) from the water level to the sludge interface is computed from computed values. Sludge thickness (L 4 ) is computed through the use of the previously stored distance (L 3 ) from the water level to a tank bottom surface. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种能够检测沉淀池和罐中任何位置的污泥界面的超声波污泥界面计,并测量从水位到污泥界面的距离以及污泥厚度。

      解决方案:用于测量液压的压力测量装置10附接到悬挂在水中的超声波发射/接收装置4,用于通过发射来测量污泥2的界面的距离(L 1 ) 并接收超声波脉冲以计算从水位到超声波发射/接收装置4的距离(L 2 )。从水位到距离(L 0 ) 污泥界面由计算值计算。 通过使用从水位到罐底表面的先前存储的距离(L 3 )来计算污泥厚度(L 4 )。 版权所有(C)2004,JPO