SU647659A1 - Arrangement for open-loop monitoring of parameters - Google Patents

Description

(54) DEVICE FOR DETERMINING PARAMETER MONITORING Before starting the jHa device, the outputs of the three first cells of register 2 set the signal voltage 1, At this moment the three sensors 5, 5 and 5 drive the corresponding keys of block 6 are connected to the inputs of all three converters / 4, 42 4. After the end of the transient process in the sensor-converter channel, set the voltage of the output signal on the register cell 3. At the same time, the sensor 5- | It will be connected to the input of block 8, and the image display (in the drawing is not shown) will show the measurement result in the first polling point. When a clock pulse arrives from generator 1 at the synchronous inputs of both retecs 2 and 3, all previously recorded signals are shifted by one cell. At this time, sensor 5 | from "switches off, and instead of it, converter 5 is connected to the input of converter 4 J and the converter 4's output is simultaneously turned off, and instead of it, the output of converter is connected to the input of display unit 8" Sensor BZ, and connected to input of block 8, 0 on the display the images show the measurement result at the second, the polling point, etc. Thus, all three conversion channels from the input side operate simultaneously, and from the output side they are time-separated, connected and switched alternately to block 8. This scheme allowed shortening the cycle time jj6eraHHs TWeic onpotS for synchronizing in time preliminary preparation of sensors on the (k-1) channels of the IpoychoyySHT reading of the measurement result on one of the | Channels Time (iy) for measuring and displaying the result is selected in advance and is, as a rule, several seconds. The transient time (tjj), in the sensor-converter channel, is due to the dynamic properties of the sensor and can greatly exceed the time (). In order to get the greatest time gain, the minimum number of K channels must be chosen so that the intent and display time

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Claims (1)

647659 elk on the time interval for preparing the next sensor exactly K -1 times. The formula for calculating the number of channels: n, k .1. In order for the sensor 5 to end after the cycle of polling points rounding over | switched again to the input of block 8 via the same gain converter 4 as in the previous cycle, sensor B, converter 4, etc., it is advisable to choose the number of sensors as multiples of the number of conversion channels. This allows us to simplify the implementation of the proposed device, since it does not require the introduction of an additional synchronization unit for the operation of both ring registers, cd. The proposed device can be used for centralized control of technological processes, if sensors with relatively long preparation times before switching are installed at the polling points, for example low-frequency vibratory transducers of the pendulum type. Formula of the Invention Device for ambient control of parameters containing a display unit, the first key block whose outputs are connected to the Inputs of the converters, the first inputs to the outputs of the respective sensors, and the second inputs to the outputs of the first ring shift register, whose inputs are connected to the output of the clock generator characterized in that in order to improve the speed of the device, it contains a second key block and a second ring shift register, the input of which is connected to the output of the clock generator Pulse outputs - to the first inputs of the second unit key, the second inputs of which are connected with you odamn respective transducers, and the output - to the input of the indication unit .. Information sources received into account in the assessment. 1, US Patent K 382448, cl. 307-252, 1976.