| 摘要 |
FIELD: instrumentation.SUBSTANCE: invention relates to temperature measurements and can be used as temperature fate for biological and physical objects. Digital temperature gage comprises temperature pickup, thermistor and digital temperature indicator. Additionally, this device incorporates bridge-type measuring circuit. Negative feedback loop is applied to said circuit, temperature gate and thermistor are connected in its branches. Its input is connected with the bridge measuring diagonal while its output is connected with bridge supply diagonal. It consists of amplifier and controlled-frequency oscillator connected in series. Digital temperature indicator input is connected with controlled-frequency oscillator output. Negative feedback built in digital temperature indicator circuit allows the increase in response and accuracy of operation.EFFECT: increase in response and accuracy of digital temperature indicator.1 dwg |
