| 摘要 |
FIELD: engineering of transmitters, technology for implementing transmitters. ^ SUBSTANCE: transmitter contains sensor 1 for registration of physical value X to be measured and its transformation to electrical value, block 3 for preliminary processing of signal for transformation of electrical value to source signal R, block 4 for processing signal for transformation of source signal R to measuring signal M and output cascade 7 for output of output signal matching the measuring signal, control block 9 for comparison during operation of output signal to auxiliary signal H derived from source signal R, and for activation of adjustment of output signal for protection purposes, when deviation between output and auxiliary signal H exceeds given limit. Output cascade 7 may be made with possible injection of analog output signal, taken through resistor 10, fed to control block 9 and registered in control block 9 by means of measuring circuit 11. Transmitter may include first electronic block 5 for processing of fed measuring signal M in accordance to transfer function F, specific for current implementation. Control block 9 may contain second electronic block 15, transfer function F of which is stored in memory 17, attached to electronic block 15. second electronic block 15 may be made with possible derivation of auxiliary signal H during operation from source signal R due to processing of source signal R in accordance to transfer function specific for given implementation and with possible comparison of auxiliary signal H to output signal. Method for implementation of transmitter is also provided. ^ EFFECT: creation of transmitter, by means of which it is possible to detect errors, occurring during processing of the source signal. ^ 2 cl, 2 dwg |
