Abstract:
A sensor control apparatus (3) includes a full-range gas sensor composed of an oxygen concentration detection cell having a pair of electrodes (21, 22) and an oxygen pump cell having a pair of electrodes (19, 20). In an electric circuit section (30), an Ip current flowing between the electrodes (19, 20) is controlled such that an electromotive force Vs produced between the electrodes (21, 22) becomes equal to a reference voltage. The reference voltage is usually set to a first reference voltage. However, when the subject gas is air, the reference voltage is set to a second reference voltage. Humidity of the subject gas is detected on the basis of an error ΔIp between an Ip current detected when the reference voltage is set to the first reference voltage, and an Ip current detected when the reference voltage is set to the second reference voltage.
Abstract:
A blood collecting apparatus comprises a blood collecting needle 152; the blood collecting bag, a first tube whose one end communicates with the blood collecting bag and other end communicates with the blood collecting needle, the branch portion provided on a portion of the first tube, a second tube connected with the branch portion at one end thereof and having a blood take-out port (sampling port); and a flexible resin bag including a third tube communicating with the second tube. The flexible resin bag is capable of accommodating air inside a part of the first tube between the branch portion and the blood collecting needle and air inside the second tube when the blood collecting apparatus is used.
Abstract:
A sensor control apparatus (3) includes a full-range gas sensor composed of an oxygen concentration detection cell having a pair of electrodes (21, 22) and an oxygen pump cell having a pair of electrodes (19, 20). In an electric circuit section (30), an Ip current flowing between the electrodes (19, 20) is controlled such that an electromotive force Vs produced between the electrodes (21, 22) becomes equal to a reference voltage. The reference voltage is usually set to a first reference voltage. However, when the subject gas is air, the reference voltage is set to a second reference voltage. Humidity of the subject gas is detected on the basis of an error ΔIp between an Ip current detected when the reference voltage is set to the first reference voltage, and an Ip current detected when the reference voltage is set to the second reference voltage.
Abstract:
In an ammonia sensor (1), lead portions (7) and (9) are provided on an insulating substrate (5); a pair of comb-shaped electrodes (11) and (13) are connected to the lead portions (7) and (9), respectively; a sensitive layer (15) is provided on the comb-shaped electrodes (11) and (13); and a protective layer (17) is provided on the sensitive layer (15). Particularly, the sensitive layer (15) is formed of a gas-sensitive raw material predominantly containing ZrO2 and containing at least W in an amount of 2 to 40 wt. % as reduced to WO3.
Abstract:
A hydrogen sensor includes a first electrode 3 and a second electrode 4 provided in contact with a proton conduction layer 2; a gas diffusion controlling portion 6 provided between a measurement gas atmosphere and the first electrode 3; and a support element (1a, 1b) for supporting the proton conduction layer 6, the first electrode 3, the second electrode 4, and the gas diffusion controlling portion 6. Hydrogen contained in a measurement gas introduced via the gas diffusion controlling portion 6 is dissociated, decomposed, or reacted by applying a voltage between the first electrode 3 and the second electrode 4 to thereby generate protons. Hydrogen concentration is obtained on the basis of a limiting current generated as a result of the generated protons being pumped out via the proton conduction layer 2 from the first electrode 3 side of the proton conduction layer to the second electrode 4 side of the proton conduction layer. Hydrogen concentration on the first electrode 2 is controlled to a partial pressure of not less than 10−12 atm, or more preferably, of not less than 3×10−12 atm and of less than 10−2 atm.
Abstract:
A gas sensor capable of reversibly and continuously measuring the concentration of a catalyst poison gas such as CO without specially needing recovering means such as a heater, and measuring the catalyst poison gas concentration without being affected by H2O concentration. The electrical circuit (15) of the gas sensor has an AC power supply (19) for applying an AC voltage between both electrodes (3), (5), an AC voltmeter (21) for measuring an AC voltage (AC effective voltage V) between the both electrodes (3), (5), and an AC ammeter (23) for measuring a current (AC effective current I) running between the both electrodes (3), (5). An impedance is determined from the AC effective voltage V and the AC effective current I generated when the AC voltage is applied to the both electrodes (3), (5). Since this impedance corresponds to the catalyst poison gas concentration, the catalyst poison gas concentration can be determined from the impedance by using a map showing the relation between the impedance and the catalyst poison gas concentration.
Abstract translation:一种气体传感器,其能够可靠地连续地测量催化剂毒气如CO的浓度,而不需要诸如加热器的回收装置,并且不受H 2 O 2的影响来测量催化剂毒气浓度 浓度。 气体传感器的电路(15)具有用于在两个电极(3),(5)之间施加交流电压的交流电源(19),用于测量交流电压的交流电压表(AC)(AC有效电压V (3),(5)和用于测量在两个电极(3),(5)之间运行的电流(AC有效电流I)的AC电流表(23)。 根据AC有效电压V和当向两个电极(3),(5)施加AC电压时产生的AC有效电流I)确定阻抗。 由于该阻抗对应于催化剂毒气浓度,所以可以通过使用示出阻抗与催化剂毒气浓度之间的关系的图来从阻抗确定催化剂毒气浓度。
Abstract:
A traction drive fluid is provided containing a naphthenic compound represented by the formula: wherein R1 is an alkyl group having 1 to 8 carbon atoms, R2 through R4 are each independently hydrogen or an alkyl group having 1 to 8 carbon atoms, and A is a naphthenic hydrocarbon group, a saturated polycyclic hydrocarbon group, a naphthenic ester group, or a naphthenic carbonate group.
Abstract:
A gas sensor having a laminate structure composed of thin sheets of solid electrolyte and including a cavity portion 21 and an oxygen concentration cell 5. The oxygen concentration in the cavity portion 21 is held constant. The oxygen concentration cell 5 includes an active electrode 12 having a relatively high catalytic capability with respect to NOx or combustible gas and an inner common electrode 13/15 (serving as an inactive electrode and an oxygen-concentration-sensing electrode) having a relatively low catalytic capability with respect to NOx or combustible gas. The oxygen concentration cell 5 is disposed in the gas sensor so as to be exposed to the interior of the cavity portion 21. The concentration of NOx or combustible gas is determined based on an electromotive force (of the order of mV) generated between the active electrode 12 and the inner common electrode 13/15 by a concentration cell effect.
Abstract:
A white blood cell-removing device has a bag-shaped housing made of soft resin, a white blood cell-removing filter member partitioning the inside of the housing into an inlet side blood chamber and an outlet side blood chamber, a blood inlet port positioned at one side of the housing and communicating with the inlet side blood chamber; and a blood outlet port positioned at the other side of the housing and communicating with the outlet side blood chamber. An inner surface (the outlet side blood chamber) of the bag-shaped housing is a unevenness surface. The white blood cell-removing filter member has a filtering part and a non-filtering part formed on the entire periphery of the filtering part.
Abstract:
A refrigerator oil for use in compressors using therein a hydrogen-containing halogenocarbon as a refrigerant, consisting essentially of as a base oil at least two esters selected from the group consisting of a specific pentaerythritol ester such as an ester of pentaerythritol with a mono- or dicarboxylic acid, a specific polyol ester such as an ester of trimethylolethane with a mono- or dicarboxylic acid, a specific ester such as an ester of ethylene glycol and a dicarboxylic acid, and a specific polyol ester synthesized from a neopentyl type polyhydric alcohol, a monocarboxylic acid and a dicarboxylic acid; and further comprising at least one kind of an epoxy compound.