摘要:
In an anomaly detector that detects an abnormal condition of an oscillation signal of a circuit such as a vibratory sensing circuit, the oscillation signal, having AC and DC components, is converted to a pair of first and second signals of either opposite-polarity DC amplitudes or opposite-phase alternating amplitudes. The first and second signals are combined to cancel the AC component of the oscillation signal to detect the DC component. The DC component is then compared with the upper and lower thresholds of a decision range to produce an alarm if the DC component goes outside the decision range. In one embodiment, the first and second signals are produced by detecting positive and negative peak values of the oscillation signal at intervals. In a second embodiment, the first signal is produced by high-pass filtering the oscillation signal as a replica of the AC component and the second signal is the oscillation signal itself.
摘要:
In an anomaly detector that detects an abnormal condition of an oscillation signal of a circuit such as a vibratory sensing circuit, the oscillation signal, having AC and DC components, is converted to a pair of first and second signals of either opposite-polarity DC amplitudes or opposite-phase alternating amplitudes. The first and second signals are combined to cancel the AC component of the oscillation signal to detect the DC component. The DC component is then compared with the upper and lower thresholds of a decision range to produce an alarm if the DC component goes outside the decision range. In one embodiment, the first and second signals are produced by detecting positive and negative peak values of the oscillation signal at intervals. In a second embodiment, the first signal is produced by high-pass filtering the oscillation signal as a replica of the AC component and the second signal is the oscillation signal itself.
摘要:
A sensor circuit includes an AC component pickup circuit and first and second adder circuits or first and second high-pass filters, and specifies a range of normal voltages by an upper-limit voltage formed by adding an upper-limit threshold value to the AC component in the input voltage and by a lower-limit voltage formed by adding a lower-limit threshold value to the AC component in the input voltage. An abnormal offset voltage is detected by judging whether the output voltage of an inverting amplifier circuit is lying in the range of normal voltages.
摘要:
A sensor circuit includes an AC component pickup circuit and first and second adder circuits or first and second high-pass filters, and specifies a range of normal voltages by an upper-limit voltage formed by adding an upper-limit threshold value to the AC component in the input voltage and by a lower-limit voltage formed by adding a lower-limit threshold value to the AC component in the input voltage. An abnormal offset voltage is detected by judging whether the output voltage of an inverting amplifier circuit is lying in the range of normal voltages.
摘要:
The gyro sensor uses a clock signal as a timing signal or synchronous signal for reading various data stored in a built-in memory for its yaw rate sensing operation. The gyro sensor is configured to use, as such a clock signal, the self-excited oscillation signal being applied to the vibrator of the gyro sensor as a vibrator drive signal.
摘要:
In a charge amplifier, an operational amplifier is provided. The operational amplifier has an inverting input terminal, a non-inverting input terminal, and an output terminal. An adjustable feedback resistor element is provide to be connected between the inverting terminal and the output terminal. A resistance adjusting circuit is provided to be electrically connected to the adjustable feedback resistor element. The resistance adjusting circuit adjusts the resistance of the adjustable feedback resistor element to a first resistance during a first predetermined period after power-on. The resistance adjusting circuit also adjusts the resistance of the adjustable feedback resistor element to a second resistance after the first predetermined period has elapsed. The second resistance is higher than the first resistance.
摘要:
The gyro sensor uses a clock signal as a timing signal or synchronous signal for reading various data stored in a built-in memory for its yaw rate sensing operation. The gyro sensor is configured to use, as such a clock signal, the self-excited oscillation signal being applied to the vibrator of the gyro sensor as a vibrator drive signal.
摘要:
Disclosed is an adamantane derivative which provides a cured product excellent in optical characteristics such as transparency and light resistance, long-term heat resistance, electrical characteristics such as and dielectric constant, and low water absorption. Also disclosed are a resin composition containing the adamantane derivative, a sealing agent for electronic circuits, optical electronic member, semiconductor device and copper-clad laminate all using the resin composition, and a radiation-sensitive resin composition which contains the above-mentioned adamantane derivative as a crosslinking agent. Specifically disclosed are an adamantane derivative represented by the formula (I-1) below, a resin composition containing the adamantane derivative, a sealing agent for electronic circuits, optical electronic member, semiconductor device and copper-clad laminate, all using the resin composition, and a radiation-sensitive resin composition which contains the above-mentioned adamantane derivative as a crosslinking agent.
摘要:
To provide a polymerizable group-containing and fluorine-containing adamantane derivative capable of affording a cured product having good heat resistance, good mechanical properties such as mar resistance and a low refractive index, a resin composition containing such a polymerizable group-containing adamantane derivative, and a fluorine-containing adamantane derivative which is useful as a reaction intermediate used for the production of the polymerizable group-containing and fluorine-containing adamantane derivative.Specifically provided are a fluorine-containing adamantane derivative represented by the general formula (I) below, a polymerizable group-containing and fluorine-containing adamantane derivative represented by the general formula (II) below, and a resin composition containing such a polymerizable group-containing and fluorine-containing adamantane derivative. In the formula, R1 and R2 are each a hydrogen atom, for example, n is an integer of 0 or more, X1 is a polymerizable group represented by the formula (III-a), for example, Y is a hydrogen atom, for example, s and t are each an integer of 1 to 15, and u is an integer of 0 to 14, with the proviso that s+t+u=16.
摘要翻译:为了提供能够提供具有良好耐热性,良好机械性能如耐磨性和低折射率的固化产物的含可聚合基团的含氟金刚烷衍生物,含有这种含聚合基团的金刚烷衍生物的树脂组合物, 以及可用作制备含聚合基团和含氟金刚烷衍生物的反应中间体的含氟金刚烷衍生物。 具体地提供由以下通式(I)表示的含氟金刚烷衍生物,下述通式(II)表示的可聚合基团的含氟金刚烷衍生物和含有这样的聚合性基团的树脂组合物, 含氟和金属金刚烷衍生物。 在该式中,R 1和R 2各自为氢原子,例如n为0以上的整数,X 1为式(III-a)表示的聚合性基团,例如,Y为氢原子,作为 例如,s和t分别为1〜15的整数,u为0〜14的整数,条件是s + t + u = 16。
摘要:
The continuous process for removing mercury comprises a step of continuously feeding a mercury-containing liquid hydrocarbon to an ionization zone where the elementary mercury is ionized; and a step of continuously feeding the liquid hydrocarbon containing the ionized mercury to a sulfur compound-treatment zone where the ionized mercury is converted to a solid mercury compound. The semi-continuous process for removing mercury comprises a step of continuously feeding a mercury-containing liquid hydrocarbon to an ionization column where the elementary mercury is ionized; and a step of feeding the liquid hydrocarbon containing the ionized mercury to a sulfur compound-treatment tank where the ionized mercury is converted to a solid mercury compound in batch manner. With the above processes, the mercury is removed from the liquid hydrocarbon with ease in a continuous or semi-continuous manner at around ordinary temperature under around ordinary pressure.