Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
  • H03K5/01—Shaping pulses
  • H03K5/04—Shaping pulses by increasing duration; by decreasing duration
  • H03K5/05—Shaping pulses by increasing duration; by decreasing duration by the use of clock signals or other time reference signals
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
  • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06G—ANALOGUE COMPUTERS
  • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
  • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
  • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
  • G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06G—ANALOGUE COMPUTERS
  • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
  • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
  • G06G7/20—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating powers, roots, polynomes, mean square values, standard deviation
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
  • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
  • G01N2009/008—Schlatter vibrating vane type

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• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Theoretical Computer Science (AREA)
• Mathematical Physics (AREA)
• General Physics & Mathematics (AREA)
• Software Systems (AREA)
• Computer Hardware Design (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Health & Medical Sciences (AREA)
• Power Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Analytical Chemistry (AREA)
• Biochemistry (AREA)
• Nonlinear Science (AREA)
• Immunology (AREA)
• Pathology (AREA)
• Arrangements For Transmission Of Measured Signals (AREA)
• Manipulation Of Pulses (AREA)
• Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
• Analogue/Digital Conversion (AREA)
• Feedback Control In General (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=22412563

Family Applications (1)

Country Status (10)

Citations (3)

Family Cites Families (6)

• 1971
  • 1971-03-15 US US00124070A patent/US3735633A/en not_active Expired - Lifetime
• 1972
  • 1972-03-06 SE SE02790/72A patent/SE368623B/xx unknown
  • 1972-03-09 CH CH349472A patent/CH554539A/xx not_active IP Right Cessation
  • 1972-03-10 JP JP47024104A patent/JPS5242065B1/ja active Pending
  • 1972-03-13 DE DE19722211971 patent/DE2211971A1/de active Pending
  • 1972-03-14 IT IT21791/72A patent/IT950143B/it active
  • 1972-03-14 GB GB2725174A patent/GB1383953A/en not_active Expired
  • 1972-03-14 GB GB1182472A patent/GB1383951A/en not_active Expired
  • 1972-03-15 FR FR7208963A patent/FR2130249B1/fr not_active Expired
  • 1972-03-15 NL NL7203422A patent/NL7203422A/xx not_active Application Discontinuation
  • 1972-03-15 BE BE780670A patent/BE780670A/xx unknown

Patent Citations (3)

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