Device for automatically measuring resistance

本发明涉及一种用于通过流过电阻上的偏流Imr和出现在电阻两端的偏压Vmr来测量电阻MR的装置。按照本发明，该装置包括：电压比较器CMP、上计数或下计数装置UPCNT和馈送其值代表由所述电流源在连接到上计数或下计数装置UPCNT的控制输入端接收的数字值OUT(0：N-1)的偏流Imr的电流源。本发明能够自动地测量电阻的数字值。本发明可用于包含在用于读取磁信息的读取头中的磁阻棒的静态电阻的测量。 The device for measurement of a resistance (MR) comprises a comparator (CMP), which receives an input...

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Bibliographische Detailangaben
Hauptverfasser:	JOAO NUNO VILA LOBOS RAMALHO, GERBEN WILLEN JONG, JOZEF ANTONIUS MARIA RAMAEKERS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING HANDLING RECORD CARRIERS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS TESTING
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Beschreibung
Zusammenfassung:	本发明涉及一种用于通过流过电阻上的偏流Imr和出现在电阻两端的偏压Vmr来测量电阻MR的装置。按照本发明，该装置包括：电压比较器CMP、上计数或下计数装置UPCNT和馈送其值代表由所述电流源在连接到上计数或下计数装置UPCNT的控制输入端接收的数字值OUT(0：N-1)的偏流Imr的电流源。本发明能够自动地测量电阻的数字值。本发明可用于包含在用于读取磁信息的读取头中的磁阻棒的静态电阻的测量。 The device for measurement of a resistance (MR) comprises a comparator (CMP), which receives an input polarization voltage (Vmr) and a reference voltage (Vref). A coding/decoding mechanism (UPCNT) is provides for coding or decoding the input authorization (EN). This is connected from the comparator output. A current source (lmr) provides a polarization current which has value that is representative of the coder/decoder digital output value (OUT).