SU725032A1 - Measuring instrument with analogue reading-out - Google Patents

Description

The device relates to the field of instrumentation and measurement technology. A measuring instrument with a gauge pointer is known, which contains a measuring mechanism, the mobile subdivision of which is equipped with a mirror, an aptic system, a scale with a matte screen, which iripoec || a) pointer light {. One of the drawbacks of such a device is insufficient vibration and impact resistance, which is explained by the presence of mechanical components on JB. A measuring instrument with an analog reference is known, containing an analog-to-digital converter, a decoder, the output of which is connected, and with optical elements of the reference devices 2. In a known device, in order to increase accuracy, it is necessary to increase the frequency of the optical elements of the indicator, if the scale is not pronounced, it can be achieved by reducing the thickness of the optoelec elements, such as LEDs. Since in the known device the light pointer forms from one optoelectronic element, increasing the accuracy with a variable scale length leads to a deterioration in the reading of the readings, the purpose of the invention is to improve the accuracy and improve the readings of the instrument readings. that a measuring instrument with an on-meter reading, containing an analog digital converter, a decoder, the output of which is connected to the optoelectromy elements; counter, pulse distributor 1C by the pulse generator at the input and the blocks of elements I, the first inputs of which are connected to the corresponding outputs of the bits of the digital-digital conversion: zohle, the second drives - with the first output of the distributor-pulses, and the outputs - with installation inputs. the counter, the counting input of the secondary is connected to the second - the output spread, the pulse divider, and the outputs - to the CO inputs of the decoder. On the drawing there is a block diagram of the device. Device analog-digital converter /, block of elements I 2, counter 3, consisting of successively connected low-order counter 4 and high-order counter 5, decoder 6 states of junior bits, and decoder 7 states the high-order counter, generator 1, connected to the input of the pulse distributor 9,

. 01ptoelectro.nge Indicator elements W, which are thin cables, made of LEDs, placed in a wide range. /A

The device works as follows. Measured analogue. The value is generated in an analog-digital converter / to binary code. The generator 8 continuously generates a sequence of pulses that are input to the distributor of the pulses 9. The first pulse from the generator 8 output is the first output of the spreading array of pulses following the n pulses (“-dat number” from the generator 5) of the second output The distributor and the pulses are 9, and the n + 1 pulse again passes to the first output and

etc. .:.;: ;;:

- A pulse from the first output of the distributor pulses associated with the inputs of block 2, the measurement result code from the output of the analog-1ZI1f (level converter / is transferred to the counter 3. Simultaneously on one inf3 output of the decoder 1, depending on the result of x-measurement and respectively, from the state of the counter 4, a niZ appears (cue (high) potential, and on one lz the outputs of the 7 i decoder depend on t; pjeTp5i: HHsi counter 5 high (low). potential. At e dm; const; indicator indicator / cop on .inputs (which will need different st potentials. With the advent of each im1pulsa raSPredolitelYa at the second output pulse numbers of aplsavnre in sChet1Ch1I1ke 1I Mshulso.v .5 successively reduced audio unit. In still -Results zatirayuts n located below inditsatornth elements. Since

725032

options . The generator and pulse distributor are chosen in such a way that the pulse frequency at the first output of the pulse distributor exceeds 24 Hz, then the luminescence of the indicator elements will be visually perceived (k; continuous). form the +1 indicator elements.

. Formula l 3 about b e tehn and

An analog readout instrument containing an analog-to-digital converter, a decoder, the output of which is connected to the optoelectronic elements of a reading device, characterized in that, in order to improve the accuracy of the improvement of the readings of the instrument, a counter, pulse distributor is entered into it. with an immersion generator at the input and a block of elements And, the first inputs of which are connected to the / corresponding outputs of the bits of the analog-digital converter, the second inputs - with the first output of the distributors, and the outputs - with the installation inputs of the counter, - the counting input of the last is connected to the second output of the pulse distributor, and the output (TO the inputs of the decoder.

Sources of information taken into account in the examination:. .

1. Measuring equipment, 1971, No. 5, p. 46-51, FIG. one.

.2. Measuring technology, 1972, No. 5, p. 57, FIG. 3 (prototype)

Claims (1)

A measuring device with an analogue reading, containing an analog-to-digital converter, a decoder, the output of which is connected to the optoelectronic elements of the reading device, characterized in that, in order to increase the accuracy and improve the reading of the readings of the device, a counter, a pulse distributor with a pulse generator are introduced into it. the input and block of AND elements, the first inputs of which are connected to the corresponding outputs of the bits of the analog-to-digital converter, the second inputs - to the first output of the pulse distributor, and the output dy - with the installation inputs of the counter, the counting input of the latter is connected to the second output of the pulse distributor, and the output to the inputs of the decoder.