摘要:
An ultrasonic diagnosis apparatus comprises a probe means for transmitting an ultrasonic pulse beam toward an internal moving part of a living body and receiving the reflected wave therefrom, and a plurality of phasing circuits for simultaneously receiving and phasing the received signal in parallel in a plurality of channels. The received signals of plural channels are mixed with a set of complex reference signals having a complex relation therebetween, thereby converting the received signals into complex signals. Autocorrelators delay the complex signals computes the autocorrelation of the complex signals. Speed operators compute the speed of the internal moving part of the basis of the computed autocorrelation. The result of measurement of the distribution of the speed of the internal moving part is displayed on a display unit.
摘要:
A two-wire communication system comprising a transmitting unit having constant current characteristics for controlling an output current thereof on the basis of a signal supplied from a sensor, a receiving unit for receiving a control signal to control the sensor, a load resistor and power supply connected in series with the transmitting unit via a two-wire transmission path, and a communication unit so connected in parallel to the load resistor as to convey the output current of the transmitting unit to the process side and control a current from the power supply transmitted onto the transmission path on the basis of information supplied from the process side. With this configuration, a communication system is provided which makes possible replacing process variable transmitters in a conventional analog control system or installing process variable transmitters in a new analog control system, which makes possible remotely setting and adjusting the transmitter function by the communication unit in the above described system, which makes it possible for the control computer to control as far as terminals, and which facilitates digitization of the system.
摘要:
A dielectric filter module having an open housing which supports screws for adjusting the characteristics of the dielectric filter. The dielectric filter, which includes an elongated dielectric block having internal cavities and a conductive film extending from the exterior surface of the block into the internal cavities, is mounted in an openended metal housing which surrounds three sides of the dielectric filter. Suitable housings can be inexpensively fabricated to the necessary length from segments cut from commercially available channel members having C-shaped or I-shaped cross-sections. Wires extend through the open ends of the housing to connector elements on the surface of the block adjacent its ends. The connector elements can be adhesively secured metal members or locally deposited regions of metallic film. Either threaded holes on the housing or nut members mounted on the housing can be used for supporting the adjustment screws.
摘要:
A tape-end detecting device wherein a magnet member fitted to a lower portion of a reel turntable is disposed so as to be spaced from a chassis, a printed circuit board is disposed in the so formed space between the magnet member and the chassis and a magnetic sensing element is fixed to the chassis by the printed circuit board.
摘要:
A piezoelectric single crystal which has a composition represented by a general formula (Ba.sub.2-x Sr.sub.x)TiSi.sub.2 O.sub.8, the value x lying within a range of 0.25.ltoreq.x.ltoreq.1.2; and a surface acoustic wave element which is so constructed as to employ surface waves that propagate on a cut plane perpendicular to the Z-axis of the single crystal, or surface waves that propagate in a specified direction on a cut plane containing the X-axis of the single crystal. The piezoelectric single crystal and the surface acoustic wave element employing it have the merits that the electromechanical coupling factor of the surface acoustic waves is great and that the temperature coefficient of delay time of the surface acoustic waves is small.
摘要:
Piezoelectric ceramics containing PbO and TiO.sub.2 as its principal constituents, and further containing 0.5 to 3.7 mol-% of Nd.sub.2 O.sub.3 and 0.2 to 1.5 mol-% of MnO.sub.2. Since the piezoelectric ceramics is low in the dielectric constant and is especially small in the temperature coefficient of the delay of surface acoustic waves, it is suitable for a surface acoustic wave device. Piezoelectric ceramics in which 0.3 to 3.3 mol-% of In.sub.2 O.sub.3 is further added to the above-mentioned composition has a still smaller temperature coefficient of the delay of surface acoustic waves, and it is also possible to make this coefficient zero.
摘要:
Disclosed in a binding tape dispensing and dealing mechanism for an apparatus for binding a bundle of paper sheets such as paper money with the binding tape, which mechanism comprises a ring-like or annular flyer provided with tape guide rollers for holding and guiding the binding tape therebetween. The annular flyer is adapted to be rotated about a bundle of the stacked papers disposed substantially at a center portion of the flyer ring, to thereby wind the binder tape about the paper bundle as the flyer ring is revolved about the center thereof. The tape dealing mechanism further includes a cutter for cutting the tape in a predetermined length, a pressing lever for pressing the cut end portion of the binder tape wound around the bundle of stacked papers against a lateral side of the paper stack, a spring and cam for controlling the operation of the cutter, and another spring and cam for controlling the movement of the pressing lever relative to the lateral side of the paper stack.
摘要:
To provide a method of determining vasculopathy, which is a risk factor of myocardial infarction, angiopathic dementia, etc., at an early stage thereof (i.e., mild vasculopathy). The present invention provides a method of determining the severity of mild vasculopathy, including determining PTX3 level in an assay sample by use of an anti-PTX3 monoclonal antibody.
摘要:
A damping material for mechanical parts includes a non-coupling interface that comes into contact without being metallically coupled. The non-coupling interface is formed from the surface to a predetermined internal depth, and may assume a non-penetrative structure. In such circumstances, it is preferable that a depth of the non-coupling interface be equal to, or greater than 20% of a dimensional thickness in the same direction. The non-coupling interface may be formed so as to penetrate from one surface to another surface. The damping material for mechanical parts is a gear damping material for forming a gear having damping characteristics, and has: a main body portion formed in a ring shape or in a disk shape; and a predetermined portion to form teeth shape provided at the outer periphery side face or at the inner periphery side face. The non-coupling interface is formed from at least one end face in an axial direction of the main body portion.
摘要:
A converter unit connected to a monitor apparatus for monitoring and controlling a plurality of air conditioners, including: PAC transmission software for transmitting a setting data from the monitor apparatus regarding a running start/stop state, a running node, an air quality and a temperature, respectively of the air conditioners, to a transmission path, and for receiving running data regarding a temperature and a pressure of a component during the refrigerating cycle from the transmission path; transmission software for receiving the setting data from the monitor apparatus and transmitting the running data to the monitor apparatus; and a converter to convert the running data for the PAC transmission software to a running data for the transmission software, and to convert the setting data for the transmission software to a setting data for the PAC transmission software, respectively, wherein the running data is collected from the control message at a predetermined interval, and the collected running data is transmitted to the monitor apparatus; and wherein the setting data is transmitted to the transmission path if the setting data is changed.