Abstract: A variable value calculating process includes: measuring a propagation time of the propagation of an ultrasound wave through a measurement sector inside a housing; obtaining a temperature calculated value on the basis of the measured value of the propagation time and a reference distance for the measurement sector; obtaining a temperature measured value by measuring the temperature inside the housing; and obtaining a temperature replacement fluctuation value indicating a difference between the temperature calculated value and the temperature measured value. The variable value calculating process is executed for each of a plurality of temperature conditions under which the temperature of a reference gas inside the housing differs. A temperature compensation table in which the temperature of a gas to be measured is associated with a temperature compensation value relating to the temperature is obtained on the basis of the temperature replacement fluctuation values obtained under each temperature condition.

Abstract: A gas concentration measurement device comprises: a transmission circuit and a transmission oscillator for transmitting first ultrasonic waves in a concentration measurement space and transmitting second ultrasonic waves, which continue temporally from the first ultrasonic waves in the concentration measurement space; a reception oscillator and a reception circuit for receiving the ultrasonic waves that have propagated through the concentration measurement space; and a propagation time measurement unit for determining, on the basis of the times at which the first ultrasonic waves and the second ultrasonic waves were transmitted and the times at which the first ultrasonic waves and the second ultrasonic waves were received, the time in which ultrasonic waves propagate through the concentration measurement space.

Abstract: Provided is a biochemical reaction substrate which can achieve higher test sensitivity and shorter testing time in an allergy test, which can also reduce a required amount of blood or the like needed as a specimen and decrease the number of test steps, thereby facilitating performance of the test, and which is to be used in an allergy test in which infection risk of the test staff is reduced.

Abstract: A processor is configured to include a correlation object determination unit for establishing: a first to-be-correlated signal established on the basis of a first upper-limit rate of change, which is the rate of change of an upper-limit envelope of a direct wave signal, and a first lower-limit rate of change, which is the rate of change of a lower-limit envelope of the direct wave signal; and a second to-be-correlated signal established on the basis of a second upper-limit rate of change, which is the rate of change of an upper-limit envelope of a round-trip-delayed wave signal, and a second lower-limit rate of change, which is the rate of change of a lower-limit envelope of the round-trip-delayed wave signal. The processor is also configured to include a correlation processing unit for establishing a correlation value between the first to-be-correlated signal and a signal based on the second to-be-correlated signal.

Abstract: The present invention is aimed to provide, as an acoustic lens propagating a sonic wave having a wavelength ? of 100 ?m or less, an acoustic lens capable of exhibiting excellent acoustic characteristics in response to the wavelength ? of the sonic wave to be propagated and a production method thereof. The acoustic lens is an acoustic lens 1 to be used for propagating a sonic wave having a wavelength ? of 100 ?m or less, wherein the acoustic lens contains a silicone resin and silica particles, an average primary particle diameter of the silica particles is 15 nm or more, and a particle diameter (D90) of 90% of a cumulative percentage in cumulative particle size distribution of the silica particles is less than ? of the wavelength ? of the sonic wave to be propagated.

Abstract: The present invention provides a backing material having an excellent attenuation effect of acoustic wave vibration, a method of producing the same, and an acoustic wave probe provided with the backing material. The backing material includes a resin and a magnetized particle, in which the magnetized particle has a magnetic flux density of 1,000 to 15,000 gauss.

Abstract: The present invention is aimed to provide, as an acoustic lens propagating a sonic wave having a wavelength ? of 100 ?m or less, an acoustic lens capable of exhibiting excellent acoustic characteristics in response to the wavelength ? of the sonic wave to be propagated and a production method thereof. The acoustic lens is an acoustic lens 1 to be used for propagating a sonic wave having a wavelength ? of 100 ?m or less, wherein the acoustic lens contains a silicone resin and silica particles, an average primary particle diameter of the silica particles is 15 nm or more, and a particle diameter (D90) of 90% of a cumulative percentage in cumulative particle size distribution of the silica particles is less than ? of the wavelength ? of the sonic wave to be propagated.

Abstract: An ultrasonic transducer has a rectangular piezo-electric ceramic sheet piece 2 which has a retracted portion 1 on a side face, an upper electrode layer 3 placed on an upper surface of the ceramic sheet piece, 4 a first terminal electrode that is placed on the upper surface of the ceramic sheet piece and connected to the upper electrode layer 3, a lower electrode layer 5 placed on the lower surface of the ceramic sheet piece, an electro-conductive layer 6 that is placed on the retracted side face 1 and connected to the lower electrode layer 5, a second terminal electrode 7 that is placed on the upper surface of the ceramic sheet piece and is connected to the electro-conductive layer 6, a first lead wire 9a connected to the first terminal electrode, a second lead wire 9b connected to the second terminal electrode 7, an acoustic matching layer 10 placed on the upper electrode layer, and an acoustic absorbing layer 11 placed on the surface of the lower electrode layer.

Abstract: An ultrasonic transducer has a rectangular piezo-electric ceramic sheet piece 2 which has a retracted portion 1 on a side face, an upper electrode layer 3 placed on an upper surface of the ceramic sheet piece, 4 a first terminal electrode that is placed on the upper surface of the ceramic sheet piece and connected to the upper electrode layer 3, a lower electrode layer 5 placed on the lower surface of the ceramic sheet piece, an electro-conductive layer 6 that is placed on the retracted side face 1 and connected to the lower electrode layer 5, a second terminal electrode 7 that is placed on the upper surface of the ceramic sheet piece and is connected to the electro-conductive layer 6, a first lead wire 9a connected to the first terminal electrode, a second lead wire 9b connected to the second terminal electrode 7, an acoustic matching layer 10 placed on the upper electrode layer, and an acoustic absorbing layer 11 placed on the surface of the lower electrode layer.

Abstract: A cap opening system which can handle various containers having caps and container bodies of different sizes is disclosed. In this system, when a cap of a container is to be opened, a container body of the container is gripped by a container body holding apparatus to raise the container body upward. A top surface of the cap is detected as a reference surface when the cap interrupts an optical beam. Based on the height of the reference surface, the cap is positioned with respect to the cap handling apparatus. Alternatively, a cap receiving member is provided underneath the cap handling apparatus to perform positioning of the cap with respect to the cap handling apparatus.

Abstract: A thin porous piezoelectric Pb(Zr,Ti)O.sub.3 ceramic sheet having a thickness of 0.05 to 2 mm which is favorably employable for manufacturing a piezoelectric transducer has small pores essentially all of which have a size of less than 25 .mu.m in which pores having a size of 5 to 25 .mu.m have a mean pore size of 1/10 to 1/1,000 based on the thickness of the ceramic sheet, and which shows a ratio of apparent density to true density in the range of 5/10 to 9/10.

Abstract: This invention relates to a coin packaging device. More particularly, it relates to a coin packaging device in which coins despatched in the prone state change their position to the upstanding state and in which a coin stack comprised of coins in an intimately contacted aligned upright state is transferred to a packaging section.