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1. 发明申请

WO02090900A8 COIL IMPEDANCE DETECTION METHOD AND OBJECT DETECTION METHOD AND APPARATUS USING THE SAME 审中-公开
标题翻译：线圈阻抗检测方法和对象检测方法和使用该方法的装置
公开(公告)号：WO02090900A8
公开(公告)日：2003-01-23
申请号：PCT/JP0204412
申请日：2002-05-02
申请人： NOHKEN INC , KAWAKATSU HIROSHI
发明人： KAWAKATSU HIROSHI
IPC分类号： G01V3/10 , G01F23/22
CPC分类号： G01V3/101 , G01F23/0076 , G01F23/0092 , G01F23/2967 , G01H11/00 , G01N11/16
摘要： A triangular wave generator circuit 21 generates a sweep voltage of a triangular wave and a VCO 22 sweeps frequency in accordance with the sweep voltage. A drive coil 4 is driven by the sweep voltage and extracts an interference component and rectifies it in a rectifier circuit 27 in accordance with current flowing in the drive coil 4. A peak hold circuit 28 holds an interference voltage peak value within one sweep time and compares the peak value held with a value predetermined by a comparator circuit 29, thereby outputting from a relay circuit 30 a signal indicating whether an object is present.
摘要翻译：三角波发生器电路21产生三角波的扫描电压，VCO22根据扫描电压扫频。驱动线圈4由扫描电压驱动，根据流过驱动线圈4的电流，提取干扰分量并整流在整流电路27中。峰值保持电路28在一个扫描时间内保持干扰电压峰值，将保持的峰值与由比较器电路29预定的值进行比较，从而从继电器30输出表示物体是否存在的信号。

2. 发明专利

TW586001B 振動式位準感測器之溫度測定方法、物體檢測方法及物體檢測裝置有权
简体标题：振动式位准传感器之温度测定方法、物体检测方法及物体检测设备
公开(公告)号：TW586001B
公开(公告)日：2004-05-01
申请号：TW092116217
申请日：2003-06-16
申请人：能研股份有限公司 NOHKEN INC.
发明人：川勝裕志 HIROSHI KAWAKATSU
IPC分类号： G01K , G01F
CPC分类号： G01F23/2967 , G01K7/203 , G01N2291/02836
摘要：本發明提供一種振動式位準感測器之溫度測定方法、物體檢測方法及物體檢測裝置，係使電磁鐵(21)與設置於檢測管內之振動板(23)的磁鐵(22)保持若干間隙相對向，並且以振動板(23)的共振頻率為中心掃描預定範圍內之頻率而將其對應的交流電藉由驅動電路(51)以預定的測定週期施加於線圈，並且在施加交流電時，藉由相位比較電路(53)檢測出依物體是否接觸於振動板(23)而產生的相位變化，由微電腦(40)根據所檢測出的相位變化來判斷物體之有無，同時在預定測定週期之前半期間根據所檢測出的相位變化來測定溫度，在預定週期之後半期間，根據溫度的測定結果改變所要掃描的頻率。
简体摘要：本发明提供一种振动式位准传感器之温度测定方法、物体检测方法及物体检测设备，系使电磁铁(21)与设置于检测管内之振动板(23)的磁铁(22)保持若干间隙相对向，并且以振动板(23)的共振频率为中心扫描预定范围内之频率而将其对应的交流电借由驱动电路(51)以预定的测定周期施加于线圈，并且在施加交流电时，借由相位比较电路(53)检测出依物体是否接触于振动板(23)而产生的相位变化，由微电脑(40)根据所检测出的相位变化来判断物体之有无，同时在预定测定周期之前半期间根据所检测出的相位变化来测定温度，在预定周期之后半期间，根据温度的测定结果改变所要扫描的频率。

3. 发明专利

TW580566B 線圈阻抗檢測方法、使用該檢測方法之物體檢測方法及裝置有权
简体标题：线圈阻抗检测方法、使用该检测方法之物体检测方法及设备
公开(公告)号：TW580566B
公开(公告)日：2004-03-21
申请号：TW091109206
申请日：2002-05-03
申请人：能研股份有限公司 NOHKEN INC.
发明人：川勝裕志 HIROSHI KAWAKATSU
IPC分类号： G01F
CPC分类号： G01V3/101 , G01F23/0076 , G01F23/0092 , G01F23/2967 , G01H11/00 , G01N11/16
摘要：本發明提供線圈阻抗檢測方法，使用該檢測方法之物體檢測方法及裝置，係由三角波產生電路21產生掃描電壓，由電壓控制振盪器(VCO)22對應於該掃描電壓進行頻率掃描，由該掃描電壓予以驅動驅動線圈4，且依流過驅動線圈4的電流，抽出干擾成份於整流電路27予以整流。而於峰值保持電路28保持1單位掃描時間內之干擾電壓峰值，且將保持之峰值由比較電路29與預定值比較後，再將顯示物體有無的信號由繼電器電路30輸出。本案代表圖：第12圖1 檢測導管 2 振動板3 永久磁鐵 4 驅動線圈(電磁鐵)21 三角波產生電路 22 電壓控制振盪器(VCO)23 驅動電路 24 電流檢測電路25 放大電路 26 帶通濾波器(BPF)27 整流電路 28 峰值保持電路29 比較電路 30 繼電器電路
简体摘要：本发明提供线圈阻抗检测方法，使用该检测方法之物体检测方法及设备，系由三角波产生电路21产生扫描电压，由电压控制振荡器(VCO)22对应于该扫描电压进行频率扫描，由该扫描电压予以驱动驱动线圈4，且依流过驱动线圈4的电流，抽出干扰成份于整流电路27予以整流。而于峰值保持电路28保持1单位扫描时间内之干扰电压峰值，且将保持之峰值由比较电路29与预定值比较后，再将显示物体有无的信号由继电器电路30输出。本案代表图：第12图1 检测导管 2 振动板3 永久磁铁 4 驱动线圈(电磁铁)21 三角波产生电路 22 电压控制振荡器(VCO)23 驱动电路 24 电流检测电路25 放大电路 26 带通滤波器(BPF)27 整流电路 28 峰值保持电路29 比较电路 30 继电器电路

4. 发明专利

TWI300851B 距離測定裝置、距離測定方法及信號處理裝置 DISTANCE MEASURING DEVICE, DISTANCE MEASURING METHOD AND SIGNAL PROCESSING DEVICE 有权
简体标题：距离测定设备、距离测定方法及信号处理设备 DISTANCE MEASURING DEVICE, DISTANCE MEASURING METHOD AND SIGNAL PROCESSING DEVICE
公开(公告)号：TWI300851B
公开(公告)日：2008-09-11
申请号：TW095124767
申请日：2006-07-07
申请人：國立大學法人德島大學 THE UNIVERSITY OF TOKUSHIMA , 能研股份有限公司 NOHKEN INC.
发明人：入谷忠光 IRITANI, TADAMITSU , 若林和博 WAKABAYASHI, KAZUHIRO
IPC分类号： G01S
CPC分类号： G01S13/36 , G01S2007/356
摘要：本發明提供一種距離測定裝置,具備發送部(20),係將與發信部(12)之輸出信號相同頻率f的電磁波朝計測軸(x軸)方向發射。檢測部(30)係利用發送信號之同相信號與正交信號對方向性耦合器(32)所檢測出之反射波(R)進行同步檢波,且從檢波信號抽出直流成分,藉以檢測出反射波(R)之同相成分(I(f))與正交成分(Q(f))。解析信號產生部(42),係將反射波(R)之同相成分(I(f))、正交成分(Q(f))、與具有相應於預定距離(do)之週期性的信號(Io(f)、Qo(f))予以混合,且只使用所獲得的側波帶之一方來產生解析信號(p(f))。傅立葉轉換部(44),係從對解析信號(p(f))進行傅立葉轉換而得的特性曲線(profi;e)(P(x))求出至測定對象物為止之距離。
简体摘要：本发明提供一种距离测定设备,具备发送部(20),系将与发信部(12)之输出信号相同频率f的电磁波朝计测轴(x轴)方向发射。检测部(30)系利用发送信号之同相信号与正交信号对方向性耦合器(32)所检测出之反射波(R)进行同步检波,且从检波信号抽出直流成分,借以检测出反射波(R)之同相成分(I(f))与正交成分(Q(f))。解析信号产生部(42),系将反射波(R)之同相成分(I(f))、正交成分(Q(f))、与具有相应于预定距离(do)之周期性的信号(Io(f)、Qo(f))予以混合,且只使用所获得的侧波带之一方来产生解析信号(p(f))。傅里叶转换部(44),系从对解析信号(p(f))进行傅里叶转换而得的特性曲线(profi;e)(P(x))求出至测定对象物为止之距离。

5. 发明专利

HK1099813A1 DISTANCE MEASURING DEVICE AND DISTANCE MEASURING METHOD 未知
公开(公告)号：HK1099813A1
公开(公告)日：2007-08-24
申请号：HK07107327
申请日：2007-07-09
申请人： UNIV TOKUSHIMA , NOHKEN INC
发明人： IRITANI TADAMITSU , WAKABAYASHI KAZUHIRO
IPC分类号： G01S20100101
摘要： A transmission unit (20) emits an electromagnetic wave having the same frequency f as an output signal from a sending unit (12) in a direction of a measurement axis (x-axis). A detecting unit (30) performs synchronous detection on a reflected wave (R) detected by a directional coupler (32) by an in-phase signal and a quadrature signal of the transmission signal, and by extracting DC component from the detection signal, detects the in-phase component (I(f)) and quadrature component (Q(f))of the reflected wave (R). An analysis signal generating unit (42) mixes the in-phase component (I(f)) and quadrature component (Q(f)) of the reflected wave (R) and signals (I 0 (f), Q 0 (f)), having periodicity corresponding to a prescribed distance (do), and using only one of the resulting side bands, generates an analysis signal (p(f)). Fourier transform unit (44) finds distance to the object of measurement from a profile (P(x)) obtained by Fourier transform of the analysis signal (p(f)).

6. 发明专利

CA2551321A1 DISTANCE MEASURING DEVICE, DISTANCE MEASURING METHOD AND DISTANCE MEASURING PROGRAM 未知
公开(公告)号：CA2551321A1
公开(公告)日：2007-01-15
申请号：CA2551321
申请日：2006-06-27
申请人： NOHKEN INC , UNIV TOKUSHIMA
发明人： IRITANI TADAMITSU , WAKABAYASHI KAZUHIRO
IPC分类号： G01S13/36 , G01S7/35
摘要： A transmission unit (20) emits an electromagnetic wave having the same frequency f as an output signal from a sending unit (12) in a direction of a measurement axis (x-axis). A detecting unit (30) performs synchronous detection on a reflected wave (R) detected by a directional coupler (32) by an in-phase signal and a quadrature signal of the transmission signal, and by extracting DC component from the detection signal, detects the in-phase component (I(f)) and quadrature component (Q(f))of the reflected wave (R). An analysis signal generating unit (42) mixes the in-pha se component (I(f)) and quadrature component (Q(f)) of the reflected wave (R) a nd signals (I0(f), Q0(f)), having periodicity corresponding to a prescribed distance (d0), and using only one of the resulting side bands, generates an analysis signal (p(f). Fourier transform unit (44) finds distance to the object of measurement from a profi le (P(x)) obtained by Fourier transform of the analysis signal (p(f)).

7. 发明专利

CA2432771A1 TEMPERATURE MEASURING METHOD, OBJECT DETECTING METHOD AND OBJECT DETECTING DEVICE WITH VIBRATING-TYPE LEVEL SENSOR 未知
公开(公告)号：CA2432771A1
公开(公告)日：2003-12-24
申请号：CA2432771
申请日：2003-06-18
申请人： NOHKEN INC
发明人： KAWAKATSU HIROSHI
IPC分类号： G01F23/22 , G01F23/296 , G01K7/00 , G01K7/20 , G01K7/36 , G01V3/10
摘要： A magnet (22) is provided to a vibrating plate (23) within a detection pipe unit (1) and an electromagnet (21) is placed opposite to the magnet wit h a slight gap therebetween. A drive circuit (51) applies, to a coil at every predetermined measurement cycle, an alternating current at a frequency which is swept over a predetermined range centered at a resonance frequency of the vibrating plate (23). When the alternating current is applied, a phase comparison circuit (53) detects a change in phase that is caused according to whether or not an object contacts the vibrating plate (23). A microcomputer (40) determines presence/absence of the object based on the detected change in phase, measures the temperature based on the detected change in phase in a former half cycle of the predetermined measurement cycle and changes the swept frequency based on the result of measurement of the temperature in a latter half cycle of the predetermined cycle.

8. 发明专利

DE60000566D1 未知
公开(公告)号：DE60000566D1
公开(公告)日：2002-11-14
申请号：DE60000566
申请日：2000-07-19
申请人： NOHKEN INC
发明人： WAKABAYASHI KAZUHIRO
IPC分类号： G01F23/26
摘要： From the time of power on, an output of a variable frequency generating circuit (5) is kept matching with the resonance frequency of a resonance circuit (1). When an object of detection comes into contact or to the vicinity of a detection electrode and the resonance frequency of resonance circuit (1) changes, a phase deviation is generated from the output of the variable frequency generating circuit (5). The deviation is detected by a phase comparing circuit (3), and a control circuit (4) changes a control voltage so that the oscillation frequency of variable frequency generating circuit (5) is changed to attain phase matching. This change is detected by a detection circuit (7), and presence/absence of the object is detected.

9. 发明专利

GB8723360D0 VIBRATOR-TYPE LEVEL SENSOR 未知
公开(公告)号：GB8723360D0
公开(公告)日：1987-11-11
申请号：GB8723360
申请日：1987-10-05
申请人： NOHKEN INC
IPC分类号： G01F23/296
摘要： A vibrator-type level sensor having a detecting pipe (20) in which an inner vibration member (22) with piezo-electric devices (8a) (8b) (8c) is mounted, the detecting pipe (20) and the inner vibration member (22) constituting a folded cantilever.

10. 发明专利

DE602006000743D1 未知
公开(公告)号：DE602006000743D1
公开(公告)日：2008-04-30
申请号：DE602006000743
申请日：2006-07-14
申请人： UNIV TOKUSHIMA , NOHKEN INC
发明人： IRITANI TADAMITSU , WAKABAYASHI KAZUHIRO
IPC分类号： G01S13/36
摘要： A transmission unit (20) emits an electromagnetic wave having the same frequency f as an output signal from a sending unit (12) in a direction of a measurement axis (x-axis). A detecting unit (30) performs synchronous detection on a reflected wave (R) detected by a directional coupler (32) by an in-phase signal and a quadrature signal of the transmission signal, and by extracting DC component from the detection signal, detects the in-phase component (I(f)) and quadrature component (Q(f))of the reflected wave (R). An analysis signal generating unit (42) mixes the in-phase component (I(f)) and quadrature component (Q(f)) of the reflected wave (R) and signals (I 0 (f), Q 0 (f)), having periodicity corresponding to a prescribed distance (do), and using only one of the resulting side bands, generates an analysis signal (p(f)). Fourier transform unit (44) finds distance to the object of measurement from a profile (P(x)) obtained by Fourier transform of the analysis signal (p(f)).

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