JPS57189956A - Drift compensation circuit of tension detector - Google Patents

Drift compensation circuit of tension detector

Info

Publication number
JPS57189956A
JPS57189956A JP56070567A JP7056781A JPS57189956A JP S57189956 A JPS57189956 A JP S57189956A JP 56070567 A JP56070567 A JP 56070567A JP 7056781 A JP7056781 A JP 7056781A JP S57189956 A JPS57189956 A JP S57189956A
Authority
JP
Japan
Prior art keywords
tension
detector
condition
zero
tension detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56070567A
Other languages
Japanese (ja)
Other versions
JPH038498B2 (en
Inventor
Kiyoshi Inatome
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP56070567A priority Critical patent/JPS57189956A/en
Publication of JPS57189956A publication Critical patent/JPS57189956A/en
Publication of JPH038498B2 publication Critical patent/JPH038498B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/43—Control or regulation of mechanical tension of record carrier, e.g. tape tension

Abstract

PURPOSE:To enable effective detection of the change of tension by compensating the output voltage of the tension detector under zero tension condition to an allowable range. CONSTITUTION:Prior to the use of a VTR, drift of the detected voltage e1 of the tension detector 10 is compensated to be within the predetermined range, for example 20mv. The said compensation is performed under the condition that the tape 4 of the VTR is not drawn out of the casette 1, or the condition that the tape 4 is not contacted with the detection element 10a of the detector 10. Therefore, the detector 10 detects the zero tension, and setting the correct detected voltage under this condition e1 to be zero, the detected voltage e1 varies to positive or negative direction with the drift, if it is presented; and it is constructed to make the value is compensated to be within + 20mv. By this arrangement fine change of the tension can be detected with normal tension detector.
JP56070567A 1981-05-11 1981-05-11 Drift compensation circuit of tension detector Granted JPS57189956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56070567A JPS57189956A (en) 1981-05-11 1981-05-11 Drift compensation circuit of tension detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56070567A JPS57189956A (en) 1981-05-11 1981-05-11 Drift compensation circuit of tension detector

Publications (2)

Publication Number Publication Date
JPS57189956A true JPS57189956A (en) 1982-11-22
JPH038498B2 JPH038498B2 (en) 1991-02-06

Family

ID=13435246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56070567A Granted JPS57189956A (en) 1981-05-11 1981-05-11 Drift compensation circuit of tension detector

Country Status (1)

Country Link
JP (1) JPS57189956A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53138362A (en) * 1977-05-09 1978-12-02 Omron Tateisi Electronics Co Follow-up comparison type signal processor
JPS54156583U (en) * 1978-04-22 1979-10-31

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53138362A (en) * 1977-05-09 1978-12-02 Omron Tateisi Electronics Co Follow-up comparison type signal processor
JPS54156583U (en) * 1978-04-22 1979-10-31

Also Published As

Publication number Publication date
JPH038498B2 (en) 1991-02-06

Similar Documents

Publication Publication Date Title
TW332352B (en) Charger with compensation circuit
JPS57189956A (en) Drift compensation circuit of tension detector
ES487308A1 (en) Method and apparatus for correcting automatically the designation of type of tape carrier
JPS5395431A (en) Trouble alarm device for air fuel ratio detector
JPS57203843A (en) Air-fuel ratio feedback control device
JPS5690272A (en) Lifetime detector for nonadjusted battery
JPS5514780A (en) Active filter
JPS5430076A (en) Fine variation meter of impedance
JPS55149028A (en) Load detector
JPS5595180A (en) Error correcting unit of integrator
JPS56160611A (en) Analog quantity indicator
JPS5340572A (en) Bodily temperature measuring device
JPS5726858A (en) Electrostatic recorder
JPS648820A (en) Current-type differential relay
JPS5569061A (en) Electrometer
JPS56124074A (en) Radiation monitor
JPS57106901A (en) Digital controller for vehicle
JPS57128362A (en) Surface potential controller
JPS55128931A (en) Squelch circuit
JPS5547401A (en) Measuring apparatus for displacement
JPS53108292A (en) Temperature compensation for photo sensor
JPS52143076A (en) Level detection circuit
JPS5563712A (en) Temperature compensation system of pressure transducer
JPS5280764A (en) Analog voltage memory unit for power suspension compensation
JPS5384143A (en) Automatically controlled electrolled electric source device