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Signal measuring device

A technology for measuring devices and signals, applied in the direction of measuring devices, selection devices, and transmission of sensing components using electromagnetic/magnetic devices.

Active Publication Date: 2017-08-01
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the structure of such a signal measurement device, the size of the signal measurement device increases in proportion to the increase in the number of signals processed by the factory that is the target of the signal measurement.

Method used

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Embodiment approach 1

[0029] Next, embodiments of the invention of the present application will be described.

[0030] figure 1 It is a diagram showing the configuration of the signal measurement device according to Embodiment 1 of the present invention.

[0031] figure 2 is for illustration figure 1 A diagram of the signal measurement method of the signal measurement device shown.

[0032] right figure 1 Be explained.

[0033] The signal measurement device 1 is used to measure a continuously changing processing signal of the factory 100 as a signal measurement target unit.

[0034] The continuously changing processed signal mentioned here is not a binary signal such as low level and high level, but a signal that can also take a value other than binary.

[0035] The factory 100 is considered to be, for example, a nuclear power plant or the like.

[0036] There are many processing signals in the nuclear power plant 100 .

[0037] In the factory 100, there are a plurality of detection units ...

Embodiment approach 2

[0096] image 3 It is a diagram showing the configuration of a signal measurement device according to Embodiment 2 of the present invention.

[0097] Figure 4 is used for image 3 This is a circuit diagram illustrating the relationship between the detection unit, input circuit unit, and constant current circuit unit. The second embodiment differs from the first embodiment described above in that the detection unit requires a constant current.

[0098] Furthermore, it is considered that a detection unit requiring a constant current is, for example, a temperature measuring resistor. In addition, the signal measurement method of the signal measurement device according to the second embodiment is the same as that of the above-mentioned first embodiment. figure 2 Proceed in the same manner as the case shown in . Therefore, the description of the signal measurement method according to the second embodiment is appropriately omitted.

[0099] In the figure, the same reference ...

Embodiment approach 3

[0112] Figure 5 It is a diagram showing the configuration of a signal measurement device according to Embodiment 3 of the present invention.

[0113] Figure 6 is used for Figure 5 This is a circuit diagram illustrating the relationship between the detection unit, input circuit unit, power supply unit, and load resistor unit. In the drawings, the same reference numerals are assigned to the same parts as those in the above-mentioned embodiments, and description thereof will be omitted.

[0114] The third embodiment differs from the first embodiment described above in that the detection unit requires a power source. Furthermore, it is considered that a detection unit requiring a power source is, for example, a transmitter. Therefore, the signal measuring method of the signal measuring device according to the third embodiment is the same as that of the above-mentioned first embodiment. figure 2 Proceed in the same manner as the case shown in . Therefore, the description ...

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Abstract

This signal measuring device is provided with: one input circuit unit (21), to which process signals from a first detection unit (101), second detection unit (102), third detection unit (103), and Mth detection unit (10M) are inputted; a signal switch unit (10) that performs switching between the detection units (101-10M) and the input circuit unit (21); a signal processing unit (23), which is connected to the input circuit unit (21), and processes the process signals; and a switch command unit (22), which outputs, to the signal switch unit (10), a switch command signal corresponding to a switch time that is set such that one of the detection units (101-10M) is connected to the input circuit unit (21), and which also outputs, to the signal processing unit (23), measurement command signals corresponding to stable measurement times at which the process signals inputted to the input circuit unit (21) from the detection units (101-10M) can be stably measured, said stable measuring times being set to the detection units (101-10M), respectively.

Description

technical field [0001] The present invention relates to a signal measuring device capable of stably measuring a plurality of continuously changing processing signals in factories such as nuclear power plants and capable of downsizing the device. Background technique [0002] A conventional signal measuring device needs to provide one input circuit unit for one processed signal. In such a configuration of a signal measurement device, the size of the signal measurement device increases in proportion to the increase in the number of signals processed by a factory that is a signal measurement target unit. [0003] As a countermeasure against this, a scan switch for sequentially switching and scanning a transmission line of a plurality of signals is provided in the signal measurement device. Furthermore, a signal measurement device handles a plurality of signals using one input circuit unit (for example, refer to Patent Document 1). [0004] prior art literature [0005] paten...

Claims

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Application Information

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IPC IPC(8): G01D21/00
CPCG01D21/00G01D5/14
Inventor 滨谷阳一郎
Owner MITSUBISHI ELECTRIC CORP
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