SU769358A1 - Temperature measuring device - Google Patents

Description

lsip, electronic key 4, unit 5 control, generator 6 onopiioii frequencies), counting 1 7 1 PULSE, DIGITAL 01 ACCOUNT

block 8, nilo-shaped generator 9, code comparison circuit 10, block 11 of the first generator, address register 12, memory 13 and buffer register 14.

The device works as follows.

 from the output of the sensor 1, which is thawed from the current stabilizer 2, is delivered to the input of the unit compared to 1N 3, to D1) the KOTOjioro corner input on the signal from the block from the unit is adjusted 5 from the output of the generator to the U time stress. The same electronic key 4 is opened from the unit; 1 and nMHyj bC) from the output of the frequency generator 6 passes through the key on the COMPLETE FROM ACCOUNT - 1M to 7.

In the pulse counter 7, it turns out that the number, iorior 1, of the ion is given. sigial sensor. Then, signals from the second output of the block are corrected by 1 5, arriving at the pair | 1 input, block of the functional operating unit, through the address register 12 are carried out and the reference cells of the unit 13, in which the static characteristic of the used sensor is recorded in numerical values, proportional to the temperature value and output C 11-pane sensor for each point. Moreover, the characteristic of a record with a uniform step on the temperature, without exceeding the problem absolutely, is the measurement error. The temperature codes read from the second output of the 13 unit, ia input of the buffer register 14, and the output signal of the sensor from the first output are fed to the second input of the comparison circuit 10, the first input of which is supplied with the code corresponding to measure e. This is the temperature from the output of the counter of pulses 7. Comparison of codes 10 Compare the code from the output of counter 7 with a sequence of codes that are stored with the controllers of the 11th generator 11, corresponding to a static characteristic 1. With codes at the inputs of the circuit 10 and her Exit generated signal ua razrs ongy zaiie code eootvetstvuyup1e -o zmer emoy postuiayuscheyu and temperature from the second output zaiomi ayuschego unit 13 in the buffer register 14. The output register 14 the code is supplied as input to the figures: first measuring indicator unit 8.

The device allows it to be used. THIS IS CASE 5Le 0

the fact that B and alogich (1) x devices

  from the output from the output of the .. K, geler (j rotor ne --- ex 011e iUULTbi oro strain), a form that matches the characteristic 1x sensor, or1 converges in alogical form. In addition to the error of a 1-maximization, depending on the choice of the approximating action, for functions, the general generator will be

) there is no) the inherentness of 1O1Ch) B1) m devices; c) it, nesting, causing instability of the elements.

Also in the device

In memory of the unit 1, per 1C station, use sensors with a characteristic of 1 cT KAM.

FOR LULA 1 3 ABOUT THEM

1. The device for ixme1) temperatures 11, the content1, its temperature sensor, a node for the current stabilizer, a comparison unit, one input of which is connected to

in the course of the sensor - temperature zT, and - with the input of the electric P1y key, the second input of which is connected to the first output of the unit and,. input - with the output of the reference frequency generator,

And the output of the electronic key to the input of the pulse counter, and a digital readout unit, characterized in that, in order to improve measurement accuracy, a voltage generator, a voltage comparison circuit, a code comparison circuit and a generator function block 0 are introduced into the device, and a sawtooth generator is input 1 with the first output of the control unit, and the output with the second

the input of the comparator unit, the first input of the compared versus code circuit is connected to the output of a pulse circuit, the second input of the circuit is connected to the first output of the fuick generator generator, one input of which is connected

with the second output of the control unit, the other input with the output of the circuit is compare 1n, and the second output of the unit is a fused generator of connection 1 with the digital OTC4eT Ib N BLOCK.

2. Device but n. 1, that is, the fact that the unit Fu 1kpionalpo 0 generator contains the correct unit, the buffer L th, address regisgr, input

which is connected to the input of the function generator block, and the output is addressable on the register with the input of the unit, the output of which is 0; Ochep to the first output b.yuka functionary generator, and the other output memorize the 1st unit connecting 1 to the input buffer south register, BTOpoii input and output otpod ochiiy to the second input unit, () -e sratora respectively.

Sources of information, iriy tye in vpiniiiy when exertizis

1. Kulikovsky K. L. and others. The method of calculating the digital liarization scheme of the function and measuring transducers

devices. “Instruments and control systems, 1978, L 8.

2. Zori, V.I., et al. Method of designing digital meters for temysrature “Lime universities. “Iriborostroenie, 1976, N ° 7 (nrototii).

Claims (2)

Claim 1. A device for measuring temperature, comprising a temperature sensor connected to a current stabilizer, a comparison unit, one input of which is connected to the output of the temperature sensor, and the output to the first input of the electronic key, the second input of which is connected to the first output of the control unit, the third input with the output of the reference frequency generator, and the output of the electronic key is connected to the input of the pulse counter, and a digital reading unit, characterized in that, in order to improve the measurement accuracy, a sawtooth generator is introduced into the device voltages, a code comparison circuit and a functional generator block, the input of a sawtooth generator being connected to the first output of the control unit and the output to the second input of the comparison unit, the first input of the code comparison circuit connected to the output of the pulse counter, and its second input to the first output of the block a functional generator, one input of which is connected to the second output of the control unit, the other input to the output of the code comparison circuit, and the second output of the functional generator block is connected to a digital reading unit. 2. The device according to π. 1, characterized in that the functional generator unit contains a storage unit, a buffer register, an address register, the input of which is connected to the input of the functional generator unit, and the output of the address register is connected to the input of the storage unit, one output of which is connected to the first output of the functional generator unit, and the other output of the storage unit is connected to the input of the buffer register, the second input and output of which are connected to the second input and output of the block of the functional generator, respectively.