JPS6161354B2 - - Google Patents

Info

Publication number
JPS6161354B2
JPS6161354B2 JP54064431A JP6443179A JPS6161354B2 JP S6161354 B2 JPS6161354 B2 JP S6161354B2 JP 54064431 A JP54064431 A JP 54064431A JP 6443179 A JP6443179 A JP 6443179A JP S6161354 B2 JPS6161354 B2 JP S6161354B2
Authority
JP
Japan
Prior art keywords
snow
level
signal
reference signal
comparator
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.)
Expired
Application number
JP54064431A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55156882A (en
Inventor
Junichiro Tsurumaru
Tsutomu Sato
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6443179A priority Critical patent/JPS55156882A/ja
Publication of JPS55156882A publication Critical patent/JPS55156882A/ja
Publication of JPS6161354B2 publication Critical patent/JPS6161354B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02845—Humidity, wetness

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP6443179A 1979-05-24 1979-05-24 Ultrasonic sensor for snow quality Granted JPS55156882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6443179A JPS55156882A (en) 1979-05-24 1979-05-24 Ultrasonic sensor for snow quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6443179A JPS55156882A (en) 1979-05-24 1979-05-24 Ultrasonic sensor for snow quality

Publications (2)

Publication Number Publication Date
JPS55156882A JPS55156882A (en) 1980-12-06
JPS6161354B2 true JPS6161354B2 (xx) 1986-12-25

Family

ID=13258070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6443179A Granted JPS55156882A (en) 1979-05-24 1979-05-24 Ultrasonic sensor for snow quality

Country Status (1)

Country Link
JP (1) JPS55156882A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676076A (en) * 1979-11-26 1981-06-23 Omron Tateisi Electronics Co Measuring device for depth of snow cover
JPS6110766A (ja) * 1984-06-27 1986-01-18 Nissan Motor Co Ltd 路面状況検知装置
JPS61205089U (xx) * 1985-06-14 1986-12-24

Also Published As

Publication number Publication date
JPS55156882A (en) 1980-12-06

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