JPS604927B2 - multi-point recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-point recording device that detects a plurality of measurement components of each measurement point using a plurality of detectors according to the measurement components, and sequentially switches to record the dots. .

Generally, when measuring component gases at a measurement location, for example in an atmosphere, multiple gas analyzers are installed to detect multiple component gases in each atmosphere, and when recording the respective detection signals, a comparison is made. Since many expensive gas analyzers are used, costs inevitably increase. For this reason, when measuring one type of component gas contained in each atmosphere, a method is being considered in which a single gas analyzer is installed and each atmosphere is switched and recorded on one dot recorder. . FIG. 1 shows a schematic configuration diagram of this conventional dot recording device. In the figure, the atmosphere at multiple locations, for example, exhaust gas A,, A2, . . . , 1 in An
Component gases, such as CO gas, are introduced by conduits into a gas analyzer. B, &, . . . , Bn are valves provided in the exhaust gas A, , A 2 , . . . , other conduits. Timer T sets a preparation time determined by external conditions such as the stabilization time of the analysis date. The recording device 1 includes an instruction mechanism 3, a motor M driven by a timer T, and a cutting mechanism 2 that transmits an atmosphere switching signal.
a dot recording mechanism 4 that records the indicated value of the indicating mechanism 3 as a dot;
The automatic stop mechanism 5 automatically stops the motor M. This indicating mechanism 3 amplifies the output of the analytical date using a servo amplifier 6, operates a servo motor 7, and indicates the indicated position on a scale plate 8.
The signal is thus configured to be fed back to the servo amplifier 6. With this configuration, when the valve B of the atmosphere A is opened, the component gas is detected by the analyzer, and an instruction is given by the indicating mechanism 3, the dotting mechanism 4 is activated by the motor M driven by the timer T. The indicated value is recorded as a dot, and the switching device 2 further changes the atmosphere from atmosphere A to atmosphere A.
2, the drive motor M is stopped by the automatic stop mechanism 5.

In this way, a plurality of exhaust gases A,,A2,...
. . . One type of component gas of An is detected by one gas analyzer H', and the dots are sequentially recorded on one recording device. Therefore, the exhaust gases A,, A2, ......, two or more types of component gases possessed by the enemy, such as C0, C02, 02
When measuring and recording gas etc., such a recording device 1 may be provided for each component gas to be measured.

However, this has the disadvantage that the number of recording apparatuses 1 increases and the cost increases. Furthermore, since these component gases are recorded on separate recording sheets, there is a problem in that it is difficult to grasp relative changes in the component gases. In view of the above-mentioned points, the present invention eliminates the drawbacks of the prior art, simplifies the configuration for recording a plurality of measured components at each measuring point, and facilitates the relative status of the measured components. It is an object of the present invention to provide a multi-point recording device that can be grasped. According to the present invention, such an object is to unify the output range of the detectors in a device in which a plurality of measurement components of each measurement point are detected by a plurality of detectors, and the measurement is performed by sequentially switching the detectors. a range converter that converts the signal into a signal, and an indicating mechanism that indicates the output of the detector supplied via the range converter;
a switch switching mechanism that is operated by a motor driven by a timer operation signal and transmits a switch switch signal that switches a switch switch contact provided at the output of the detector supplied via the range converter; and a measurement point cut-off mechanism that transmits a measurement point cut-off signal to sequentially switch the measurement points;
a dot recording mechanism that records the indicated value of the indicating mechanism as a dot;
and an automatic stop mechanism that is connected to the dot recording mechanism and automatically stops the motor, and after the measurement components of the measurement point in the previous position are sequentially switched and indicated and the dots are recorded, the motor is moved to the rear position. switched to a certain measurement point,
This is achieved by arranging that the switching contact is switched so that the motor is stopped and, after a required stop period, restarted by the timer.

Next, one embodiment of the present invention will be described in detail based on the drawings.

FIG. 2 shows a schematic configuration diagram of an embodiment of the present invention.

In the figure, parts having the same functions as those in FIG. 1 are given the same reference numerals. Atmosphere A,...
A2, . Two gas analyzers are installed for detection. The recording device 10 includes a motor M, a switching device 11, range converters 12, 13, switching contacts 14, 15, an indicating mechanism 3, a dot recording mechanism 4, and an automatic stop mechanism 5. The range converters 12 and 13 convert the outputs of the analytical measurements and ratios into a unified signal. This converter 12, 13
The unified output of the analytical meter is sent to the indicating mechanism 3 via the range rice exchange contacts 14 and 15. Further, the timer T sets the preparation time determined by external conditions such as the stability time of the analysis date, day 2, and the like. The operation of the timer T causes the motor M to drive the switching device 11 and the dot recorder base 4. Next, the operation of this configuration will be described.

First, valve B of atmosphere A is opened, and the analytical date,...
Each component gas is detected on day 2. The detection outputs of the analysis date, , & are converted into a unified signal by range converters 12 and 13. First, the analytical date signal is introduced into the indicating mechanism 3 through the digital switching contact 14, is amplified by the servo amplifier 6, operates the servo motor 7, and displays the indication on the scale plate 8. The position is fed back to the servo motor 7 by the potentiometer 9. At this time, after a predetermined preparation time determined by external conditions, the timer T transmits an operation signal, rotates the motor M, operates the dot recording mechanism 4, and sets the indicated value of the indicating mechanism 3 to the dot point. Record. Further, the switching device 11 receives a switching signal from a switching mechanism (not shown), switches from the rear point 14 to the contact 15, and the indicating mechanism 3 instructs the output of the analyzer ratio. The dot recording mechanism 4 records the indicated value of the indicating mechanism 3 as a dot. After a plurality of component gases are recorded as dots in this way, the switching device 11 transmits a digital switching signal to switch the contact 14 again, and an atmosphere switching mechanism (not shown)
An atmosphere switching signal is sent, and valve B of atmosphere A,
, close the valve B2 of atmosphere A2, and switch from atmosphere A to atmosphere no. After that, the automatic stop mechanism 5 stops the drive motor M. The stop time of the motor M is changed to the atmosphere A2, and the analyzer time is changed to the atmosphere A2. , Atmosphere A2 on day 2
This is a preparation period depending on external conditions until the gas is introduced and stabilized. After this preparation period, recording of the dots of the component gases of the atmosphere A2 is started again by the operation signal of the timer T. Therefore, atmosphere A,,A2,.........,An
The detected values of a plurality of component gases are sequentially recorded as dots on the same recording paper. Next, FIG. 3 shows a temporal state diagram of the embodiment of the invention in FIG. In the figure, the timer T of A has an operation time of TON and a stop time of ToFF.
The drive motor M of B has a drive time MD and a stop time MST.
shall be. For the dotting mechanism 4 of C, t is the dot interval and t is the preparation time. The dot movement of D is atmosphere A,, ~,...
. . . This is the dot order of the measured values of the component gases in An. The atmosphere switching signal of E is atmosphere A,, A2,
・・・・・・・・・・・・Ah valve B, &, ………………
, Bn is the open period. Now, the switching device 11 in FIG.
When the atmosphere control signal is at the valve B of the atmosphere A,
The drive motor M is driven by the operating time TON of the timer T. By driving this motor M, the switching device 11 and the dot recording mechanism 4 are operated. After a preparation time t, this dot recording mechanism 4 enters the dot operation, and at dot interval t, the indicated value of the indicating mechanism 3 according to the date of analysis is recorded as dots. This hitting point is indicated by a * mark. Then, the range contact 16 is
After the preparation time, the dot mechanism 4 is switched to
The dotting operation begins, and at dot interval t, the indicated value of the indicating mechanism 3 based on the analysis date 2 is recorded as dots. This dot is X
It is indicated by a mark. After the RBI is recorded in this way,
The switching device 11 sends an atmosphere switching signal, switches the atmosphere valve B2 to open, and the atmospheric gas of the atmosphere A2 is introduced into the analyzer day, day 2, and the measurement preparation period is completed until the start of recording of the atmosphere A2. period. At the same time, the switching device 11
A switching signal is transmitted, the switching from the range contact 15 to the switching contact 14 is performed, the motor M is stopped by the automatic stop mechanism 5, and the transition to the stop time MST begins. After this stop time MST, the timer T starts operating again, and the recording of the dots of the component gases in the atmosphere is repeated in the same way as in the atmosphere A. While the dot recording mechanism 4 performs dot operation,
The motor M is being driven, but when the point-scoring operation is completed, the motor M is stopped.

However, the operating time TcN of the timer is set to be larger than the final dot operation start time t+L and smaller than twice the dot interval t at which the dot operation ends. In other words, equation '1-' holds true. t10chi<TONkua......[11 Now, in Fig. 3, there are two measurement components, so there are two measurement points, but when there are m measurement points, the general formula is 2} formula holds true.

(m-1)・t+chi<TON<m●t……(21Next, Figure 4 shows the power supply circuit diagram of the drive motor. In the figure, the power supply of motor M is assumed to be S. SW, is the timer The switch T, SW2, is a switch of the automatic stop mechanism 5. In this embodiment, the automatic stop mechanism 5 also serves as the dot operation on/off switch built into the dot recording mechanism 4. In order for the dot recording mechanism 4 to perform a dot operation, the switch SW of the timer T in the power supply circuit of the motor M must always be on.However, when entering the final dot operation, the switch SW, must be turned on. At the same time, the switch SW2 is also turned on so that the automatic stop mechanism 5 also serves as an on/off switch for dotting operation.When this state is reached, the switch SW of the timer T can be turned off, and the timer T is turned off. Transition from operating time TON to stop time T.FF. When this last dot recording is completed, switch SW2 of automatic stop mechanism 5 is activated.
is automatically cut off, motor M stops, and the dotting operation ends. Note that if the automatic stop mechanism 5 is installed as a separate mechanism directly connected to the dot point mechanism 4 without also serving as an on/off switch for dot operation, the operation time TON of the timer T holds the formula {31 . L<T. N<m・t……{
3' That is, the switch SW2 of the automatic stop mechanism 5 in FIG. 4 operates at the first dot start time of the dot operation switch (not shown) built in the dot recording mechanism 4, and when the final dot operation ends. At the same time, the operating time T of the timer T is configured to expire.

N can be set to a shorter time than Equation (2), or a slightly larger time. However, the dotting operation in this embodiment is started by the operation signal of the timer T, and is stopped by the stop signal of the motor M by the automatic stop mechanism 5 directly connected to the dot recording mechanism 4, so that the dot interval t is always constant and time-dependent. There is no occurrence of time errors such as delays. Next, the fifth
The figure shows a partially enlarged view of the dot record in FIG.

In the figure, atmosphere A,,A2,...
The dots of each measurement component of An are the drive time M of the drive motor M.
The dot operation is performed every dot interval t, where D is the dot operation time. Therefore, each measurement component of the n atmosphere is recorded at multiple points on one sheet of recording paper. As described above, according to the present invention, m measurement components at n measurement points are changed by switching the measurement points and switching the measurement components, and by a unified signal from the range converter. Since the dots are recorded on the multi-point recording device of the stand, the configuration is simplified and the relative situation between the measured components can be easily grasped. Although this embodiment describes the measurement of component gases in the atmosphere, it is also applicable to multi-point recording of two or more components such as water quality.

Furthermore, in this embodiment, the horizontal switching contact is provided after the unified signal from the multiple range converters;
It can be installed in front of the range converter.

Furthermore, when provided in front of a range converter, the outputs of a plurality of detectors can be switched and converted using one range converter. If the output of the detector is a unified signal, it is also possible to remove this range converter.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a conventional dot recording device, FIG. 2 is a schematic configuration diagram of an embodiment of the present invention, FIG. 3 is a temporal state diagram of the embodiment of the present invention in FIG. 2, and FIG. The figure is a power supply circuit diagram of the drive motor, and FIG. 5 is a partially enlarged view of the dot recording in FIG. 3. 3... Ch indication mechanism, 4... Dot recording mechanism, 5...
...Automatic stop mechanism, 6... Servo amplifier, 7.
... Servo motor, 9... Potentiometer, 10...
...Multi-point recording device, 1 1...Switching device, 12,
13... Range converter, 14, 15... Switching contact, A,, A2,...
,An...atmosphere,B,,B2,…………,B
m"...Valve, Day,, Day 2...Gas analyzer, T...Timer, M...Motor. Figure 1 Figure 2 Figure 4 Figure 3 Figure 5

Claims (1)

[Claims] 1 A plurality of measurement components of each measurement point A_1, A_2, ..., An are detected by a plurality of detectors H_1, H_
In the case of detecting by 2 and measuring by switching sequentially,
an indicating mechanism 3 for indicating a unified output signal of the detector;
, a timer T for setting the preparation period of each of the detectors, and a motor M driven by the operation signal of this timer.
and a switching mechanism which is operated by this motor and sends a switching signal to switch the switching contacts 14 and 15 provided at each output of the detector, and a measurement point switching mechanism which sends a measurement point switching signal to sequentially switch the measurement points. a switching device 11 consisting of a mechanism; a dot recording mechanism 4 that is operated by the motor and records the indicated value of the indicating mechanism; and an automatic stop mechanism 5 that is connected to the dot recording mechanism and automatically stops the motor. After the measurement components of the measurement points in the previous order are sequentially switched, indicated, and recorded, the measurement components are switched to the measurement points in the next order, and the switching contact is switched, so that the motor is switched on. A multi-point recording device characterized in that it is configured to be stopped and restarted by the timer after a required stopping period.