Invention Grant
- Patent Title: Lead iron tungstate capacitive transducer, relaxor material therefor and method of manufacture of said relaxor material
- Patent Title (中): 铅钨酸电容式换能器，其松弛材料及其制造方法
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Application No.: US10319601Application Date: 2002-12-16
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Publication No.: US07354565B2Publication Date: 2008-04-08
- Inventor: Kamlesh Kumar Jain , Vinay Kumar , Subhash Chand Kashyap
- Applicant: Kamlesh Kumar Jain , Vinay Kumar , Subhash Chand Kashyap
- Applicant Address: IN New Delhi IN New Delhi
- Assignee: Council of Scientific & Industrial Research,Indian Institute of Technology - Delhi
- Current Assignee: Council of Scientific & Industrial Research,Indian Institute of Technology - Delhi
- Current Assignee Address: IN New Delhi IN New Delhi
- Agency: Sughrue Mion, PLLC
- Main IPC: C01G21/00
- IPC: C01G21/00 ; C01G41/00 ; C01G49/00
Abstract:
The present invention discloses a relaxor material lead iron tungstate which has been synthesized in doped and undoped conditions by single and two step heat treatment. The relaxor material is seen to exhibit almost negligible hysteresis and a transducer made thereby shows pressure measurement capability over a wide range from 0.5 MPa to 415 MPa with accuracy of ±0.05%.
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