JPS5910626Y2 - Coulometric recording device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coulometric measurement and recording device that measures and records the amount of electricity (hereinafter referred to as coulometric amount).

Until now, as this type of device, there have been analog coulometric measuring devices by shipping mercury, and recently there have been devices that use electronic circuits to measure the coulometric amount in decimal notation using an electromagnetic counter or the like.

Digital display without reading errors is convenient for knowing the integrated value being measured by these devices.

However, in order to know the progress of the measurement when measuring the amount of electricity over a long period of time, it is necessary to note down the displayed value each time the scheduled time or other conditions are met.

The present invention thus saves the trouble of taking notes each time, and provides a coulometer measurement and recording device that connects a converter to a coulometer and records and displays data in synchronization with the integrated value of the coulometer in an analog recording manner. It is something to do.

Examples thereof will be described below based on the drawings.

FIG. 1 is a block diagram showing the device of the present invention, and A indicates a coulometer.

Applying the current signal to be measured to the structure or terminal 1 of this coulometer,
This signal is voltage amplified in block 2, and block 3
This voltage is converted into a pulse signal proportional to the voltage.

This pulse signal is shaped in block 4 and generates proportional alternating current power in block 5 which is applied to the electric motor in block 6 which drives the display of the decimal digit dial in block 7.

In this way, the integrated amount of current value is displayed by amplifying, converting, driving and displaying the current signal.

Note that the block 8 is a power supply for these, and the terminal 9 is a terminal for sending out a signal converted into a pulse proportional to the amplified voltage of the current to be measured to the outside of the apparatus.

B shows the configuration of the converter. When the converter receives the conversion pulse signal at the terminal 10, the frequency division circuit of block 11 performs the necessary frequency division so that the same value as that displayed on the coulometer is recorded.

The block 12 is a storage circuit made of a semiconductor that constitutes the display digits of the coulometer.

Block 13 is block 11. This is a decoder that converts the signal subjected to binary frequency division and accumulation in 12 into a decimal voltage value.

The terminal 16 is a terminal that transmits this decimal voltage value to the voltage range of the recorder 17.

The recorder 17 can be of either a pen type or a dot type.

Block 14 is a monitor portion where a pulse signal is applied to the transducer to indicate that the device is operating.

Further, block 15 is a power source that supplies power to these.

Note that it is also possible to integrate all of these blocks into a measuring instrument that performs measurement, counting, and recording/displaying.

As described above, the device of the present invention receives the conversion signal from the coulometer, and
The frequency is divided, accumulated, and converted to allow the recorder to record and display the measurement progress of the amount of electricity.

Next, details of the converter will be explained with reference to FIG.

When a pulse signal is applied to input terminals a and b, which correspond to terminal 10 in FIG. The pulse signal amplified and waveform-shaped in step 23 is subjected to digital counting using a binary system by means of frequency dividing circuits 24 and 25 made of semiconductors connected in series, and frequency dividing circuits 26 and 27 connected in series.

Block 28 then performs an accumulation count for the binary coded decimal digit corresponding to the lowest digit of the coulometer display, and block 29
also performs an accumulation count for the binary coded decimal digit following the smallest digit of the display.

Block 30 is a decoder with an IC structure that converts the binary coded decimal value of the BCD code output from block 29 into a decimal signal of O to 9. Resistors 31 to 39 are connected to output terminals 1 to 9 of the decoder.
9, and make one end of all these resistors common,
Recording voltage output terminals c and d are connected to a power source f via a resistor 40 having both ends thereof.

These resistors 31 to 39 connect O■ to the recording voltage output terminals c and d through the series resistor 40 when the output of the decoder is 0.
When it is 1, it is 0.45V, and when it is 2, 3,...9, it is 0.9V, 1.35V...4.
When the resistance value is determined to generate 0.5V, the count progresses and the output of the decoder repeats 0 to 9 to 0 and decimal, and the voltage output terminal receives 0 to 4.05V in 0.45V increments.
Output voltage is generated in stages of 0■.

However, the output voltage value at this time is not limited to 0.45 V and can be arbitrarily determined.

In addition, part of the monitor applies a frequency division signal from the output of the frequency division circuit 26 to the base of the transistor 44 via the resistor 41,
From the collector of this transistor, a light emitter 43 and a resistor 42
It is connected to the power supply f via the . . . , and each time the frequency-divided output is turned on or off, the transistor is also turned on or off and the light emitter blinks to display the counting status.

Figures 3 and 4 explain the recording format of this device. Figure A shows the total display of the coulometer, and the recording paper of the pen-type recorder, which is indicated by the mouth, is sent from left to right at a constant time. When the waveform is set, a staircase wave as shown in the figure is recorded.

When the outputs O to 9 of the decoder described above are displayed sequentially, the integrated value of the coulometer is counted as the digit a1 on the display advances, and step b1 of the staircase wave on the recording paper is also sequentially recorded, and when it moves from 9 to O, it is counted. increases by one digit from a1, and at the same time the display of a2 is added, and at the same time, the record descends from the highest value to the 0th place b2.

Now, if the reset switch 45 connected to the storage semiconductors 28, 29 and the decoder 30 is synchronized with the display reset of the coulometer and measurement recording is started at the same time, the frame advance of the a1 digit on the display and the step b1 recorded on the recording paper will occur. is the same as the progression of
Furthermore, the frame advance of the digit a2 is the same as the advance of the record mountain b2, and similarly, the frame advance of the a3 digit is synchronized with the tenth of the record mountain b2.

Figure 4 shows an actual recording example in which the current value (C) and the amount of electricity (2) are recorded using a pen-type recorder. When time is indicated, the height of the recording step for the amount of electricity is constant regardless of the current value, but when the current value is large, the number of peaks is small, and when the current value is small, both the step width and the center become wider, and the number of steps per hour increases. Indicates that the cumulative amount is small.

A pen-type recorder like the one described above records a step wave, but a dot-type recorder records dots only in the horizontal part, without recording the vertical part at the transition from stage to stage or at the end of the mountain. It will be done.

The recorded amount of electricity is read based on the number of peaks and stages.For example, if the coulometer display in Figure 3A is 0725, the amount of electricity is calculated by reading 7 peaks and 2 stages, and multiplying by a coefficient. .

As described above, with the device of the present invention, it is possible to record the cumulative amount of current, the trend of the magnitude of current value, and the average value when measuring the amount of electricity, which was not possible with conventional measuring instruments. There is no need to record notes during long-term measurements, which greatly reduces labor in measurement work, and the amount of electricity at any point in time can be easily determined even after measurement.

In addition, this measurement and recording device allows the use of existing coulometers and recorders, making it economical and easy to handle. It displays data in sync with existing coulometers, making it easy to check records. Because it allows accurate recording, there are no reading errors and accuracy can be increased.

Furthermore, the analog recorder receives the output signal from the converter and records and displays the output voltage step by step, with each step representing a predetermined unit amount of electricity in synchronization with the integrated value of the coulometer. The amount of electricity can be read reliably by the number of steps and the number of peaks, and as a result, there is no need to measure and calculate using a scale, which is required to directly record the amount of electricity used. Even low-level data can be recorded and read reliably.

Furthermore, the recorded waveform of the present invention takes a step each time it reaches a predetermined unit of electricity, and the length of the horizontal portion indicates the time until the predetermined unit of electricity is reached. The length of the part is recorded as short if the measured current value is larger than the rated value, and conversely longer if it is smaller than the rated value.

In this way, the length of the horizontal portion is an important indicator of the level of the measured value.For example, when the measured current value is small and the horizontal portion is recorded for a long time, the device will not operate properly. It is difficult to judge from this record alone whether or not this is the case.

However, in the present invention, the converter is provided with a part of the monitor that displays the operating status of the device by blinking the light emitter in conjunction with the on/off of the output of the frequency dividing circuit. Even in such cases, it is easy to determine whether the device is operating by the blinking of the light emitter, and since the blinking display of the light emitter is proportional to the measurement input of the coulometer, the light will not emit light if the measurement input changes in magnitude. The blinking time ratio of the body follows this, and as a result, it also has the advantage of being able to visually observe increases and decreases in the measurement input signal of the coulometer.

[Brief explanation of the drawing]

Figure 1 is a block diagram of a coulometric measurement and recording device in an embodiment of the present invention, Figure 2 is a specific circuit diagram of a converter, Figures 3 and 4.
The figure is an explanatory diagram showing the recording format by this device. A: Coulometer, B: Converter, 11.
...Frequency divider circuit, 12...Storage circuit, 13
...Decoder, 14...Part of monitor, 1
7...Analog recorder, 43...Light emitter, 45...Noset switch.

Claims (1)

[Scope of utility model registration request] A coulometer, a multi-stage frequency divider circuit that receives the pulse signal supplied from the coulometer, a multi-stage storage circuit, and a decoder that converts the digital output of this storage circuit into a decimal signal from O to 9. A converter with a sharp edge, and an analog device that receives the output signal from the converter and records and displays the output voltage of the converter step by step in synchronization with the integrated value of the coulometer, with a predetermined unit amount of electricity as one step. and a recorder, and the converter further includes a part of a monitor that displays the operating status of the device by blinking a light emitter in conjunction with the on/off of the output of the frequency dividing circuit, and the storage circuit. and a reset switch connected to the disconnector and for returning the digital output of the storage circuit to O level at any time.