JPS5913913A - Recorder - Google Patents

Abstract

PURPOSE:To record arithmetic results such as a mean value in addition to measured values by smapling and holding plural input signals in a sample holding circuit and perform processing. CONSTITUTION:When an input signal e1 is selected, this signla is supplied to the sample holding circuit 3 through a preamplifier 2. At this time, a selector SW11 is so set that the signal is held by a sample holder SH1, and once a switch SW2 synchronizing with print point operation s turned on, a smaple signal +V1 is supplied to the sample holder SH1, sampling and holding the input signal e1. A selection switch SW3 is off because no on signal is supplied from a switch SW12, so the output signal e1 of the preamplifier 2 is supplied to a servo unit 5 and a recording part 6 performs indication and recording corresponding to the level of the input signal e1. Input signals e2-eN-1 are the same. Those (N-1) input signals are sampled and held by a sample holding circuit 3 and an arithmetic circuit 4 calculates the mean value.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Field of the Invention The present invention relates to a recorder that can also record calculation results.

(2) Conventional technology So-called analog recorders amplify input signals and record them on recording paper, but they have the problem of not being able to handle situations such as recording average value calculation results for multiple input signals. there were.

(3) Purpose of the Invention In view of two or more points, the purpose of the present invention is to provide a recorder that is capable of recording calculations.

(4) Examples of the invention FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention.

In the figure, 1 is an input terminal to which a plurality of (N-1) input signals are supplied, 5WIO is an input switch that switches and selects a plurality of input signals, and 2 is an input signal selected by the input switch layer. A preamplifier that amplifies the.

3 is a plurality of sample and hold devices SHI, which sample and hold the output signal of the preamplifier 2,...r 5HN-1
Sample and hold circuit consisting of +, 4 is resistor R1,...
・.

An arithmetic circuit consisting of RN-1, amplifier A, etc., which calculates the average value, etc. 5Wlt selects which sample-hold device S, f(1,..., 5HN-1) of the sample-and-hold circuit 3 will hold the sample. Input switch 5WIO
The selector 8W2 is a switch that generates a conductive signal just before the point operation of a point recorder, etc., and applies voltage +v1 to the sample hold circuit 3 via the selector 1 5WII to perform the sample hold operation. A selection switch such as a relay that switches the output signal of the preamplifier 2 or the output signal of the arithmetic circuit 4, 5W12, is synchronized with the input switch 5WIO, and when taking out the Nth channel, that is, the output of the arithmetic circuit 4, the voltage is applied to the 1 selection switch SW3. A switching device that is driven by giving the child Vo.

5 is supplied with the selection switch SW3, and the servo amplifier 51.5 is supplied with the selection switch SW3. It controls the recording position of the servo motor M, potentiometer circuit 52, etc., instructs the scale plate 62, and also controls the recording paper 6.
3. This is a recording section that performs recording.

Next, the operation will be explained with reference to FIG.

The input switch S wto sequentially switches 1 to N-1 input signals and supplies them to the preamplifier 2, and does not select the Nth input signal. If the first input signal e1 is selected, this signal is supplied to the sample and hold circuit 3 via the preamplifier 2. At this time, the selector 5W11 is selected to cause the sample and hold device SH1 to hold, and the sample signal 1 is applied to the sample and hold device SHI in response to the turning on of the switch SW2 in synchronization with the marking operation.

Input signal e1 is sampled and held. On the other hand, the 9 selection switch SW3 is off because it is not given the on signal from the switch 5W12, so the output signal e1 of the preamplifier 2 is given to the servo unit 5.

The recording section 6 performs instructions and recordings corresponding to the magnitude of the input signal e1. Hereinafter, the 2nd to N-1st input signals e2
．． ...The same applies to eN-xiHM.

These N-1 input signals are sent to the sample and hold circuit 3.
In this example, the average value is calculated by the calculation circuit 4. In addition.

As an operation, a difference operation on a specific input signal.

Two different operations such as addition are possible.

Next, when the input switch hole selects the Nth position, the input signal is not selected, no sample hold operation is performed, and the switch 5
W12 applies a voltage +vO to the selection switch SW3 for the first time to drive it, and the second selection switch SWs applies the output of the arithmetic circuit 4 to the servo unit 5.

The servo unit 5 responds to the output of the arithmetic circuit 4.

The recording unit 6 is caused to perform instructions and recording.

Thereafter, in the same manner, the instruction and recording of 1 to N-1 input signals and the instruction and recording of the calculation results of sample and hold values of these input signals are repeated in sequence.

Note that the output of the sample and hold circuit 3 may be analog-to-digital converted and stored in a memory, and the arithmetic processing may be performed using a microcomputer or the like.

(5) Summary of the Invention As stated above, the present invention provides a recorder that not only indicates and records a plurality of input signals but also performs arithmetic processing by holding samples in a sample-and-hold circuit. be.

(6) Effects of the Invention In addition to recording normal measured values, calculation results such as average values can also be recorded, making it extremely convenient to know both recorded results.

[Brief explanation of the drawing]

FIG. 1 is a configuration explanatory diagram showing one embodiment of the present invention, and FIG.
The figure is a signal diagram for explaining the operation. DESCRIPTION OF SYMBOLS 1... Input terminal, 2... Preamplifier, 3... Sample hold circuit, 4... Arithmetic circuit, 5... Servo unit, 6... Recording section, 8W1o... Input switch, 5WII...Selector, 5W12...Switcher, SW2, SW3...Switch patent applicant
Chino Seisakusho Co., Ltd.

Claims (1)

[Claims] 16. An input switcher for switching and selecting a plurality of input signals;
A sample and hold circuit that samples and holds the input signal selected by this input switch. an arithmetic circuit that performs arithmetic processing on the signal held in the sample and hold circuit; a selection switch that switches between the output signal of the arithmetic circuit or the input signal selected by the input switch; and an input signal taken out by the selection switch. or a recording section for recording the output signal of the arithmetic circuit. 2. The point-and-spot recorder according to claim 1, wherein the sample-and-hold circuit is caused to perform a sample-and-hold operation by a conduction signal immediately before the point-spot operation.